Operasi Mata Laser SmartSight Dokter Terbaik - TOP-37 dokter

Ponpawee Jindarak, M.D.

Ophthalmologist

Graduated (M.D. From)

Doctor of Medicine, Faculty of Medicine, Chulalongkorn University

An eye care specialist. Unlike optometrists and opticians, I am a doctors of medicine (MD) or doctors of osteopathy (DO). I have specialized training and experience in diagnosing and treating eye and vision conditions.

Certificates

Certificate of Ophthalmology, Faculty of Medicine, Chulalongkorn University

International Clinical Fellowship in Glaucoma at Illinois Eye and Ear Infirmary, Department of Ophthalmology, University of Illinois, Chicago, USA

Current Positions

Ophthalmologist at Intrarat Hospital

Birthplace and Date

Ankara, 1975

Foreign Languages

English

Education and Experience

1999 Ankara University Faculty of Medicine

2004 Istanbul University Cerrahpaşa Faculty of Medicine Department of Ophthalmology

2012 Yeditepe University Faculty of Medicine Department of Ophthalmology, Lecturer

Case Experience

13 years of active ophthalmology practice.

Associations Membership

Turkish Ophthalmology Association (TOD)

Turkish Ophthalmology Association Medical Retina Unit active member

European Vitreoretinal Society (EVRS)

European Society of Retina Specialists (EURETINA)

International Society for Clinical Electrophysiology of Vision (ISCEV)

European Society of Cataract and Refractive Surgeons (ESCRS)

2023 - Adiyaman University Faculty of Medicine Training and Research Hospital

2021 - Bingöl Maternity and Pediatrics Hospital, Bingöl

2019 - Ulucanlar Eye Training and Research Hospital, Ankara

2014 - Ankara University Faculty of Medicine, Ankara

Getting rid of glasses with Excimer Laser (Myopia, Hyperopia, Astigmatism) (No-touch-LASIK)

Cataract - Multifocal Intraocular Lens (Smart Lens) Surgery

Keratoconus Diagnosis and Treatments (Crosslinking - Corneal Ring)

Fakik Intraocular Lens

Corneal Transplant (Keratoplasty-DALK-DMEK)

Oculoplasty (Upper and Lower Eyelid Aesthetics)

Low Eyelid (Ptosis) Treatment

Tear Duct Obstruction Surgery

Medical Aesthetics (Botox / Filling)

Glaucoma Diagnosis and Surgery

Pediatric Ophthalmology, Strabismus Surgery

Retinal Diseases and Treatment

Publications in International Refereed Journals:
 

a. Original Research Article Published in Journals in SSCI, SCI, SCI- Expanded or AHCI
 

1. Can ME, Kaplan FE, Uzel MM, Kızıltoprak H, Ergün MC, Koç M, Şimşek G. The Relationship of Helicobacter Pylori with Choroidal and Retinal Nerve Fiber Layer Thickness. Int Ophthalmol, 2018; 38(5)
2. Tekin K, Sekeroglu MA, Kiziltoprak H, Yilmazbas P. Corneal Densitometry and its Correlation with Endothelial Morphometry in Healthy Corneas. Cornea. 2017
3. Özates, S, Kızıltoprak H, Koç M, Uzel MM, Teke MY. Intraocular Lens Position in Combined Phacoemulsification and Vitreoretinal Surgery. Retina, 2018
4. Tekin K, İnanç M, Kurnaz E, Bayramoğlu E, Aydemir E, Koç M, Kızıltoprak H, Aycan Z. Quantitative Evaluation of Early Retinal Changes in Children with Type 1 Diabetes Mellitus Without Retinopathy.Clin Exp Optom. 2018;101
5. Kosekahya P, Koc M, Caglayan M, Kiziltoprak H, Atilgan CU, Yilmazbas P. Reproducibility and reliability of ectasia imaging and topometric indices with Scheimpflug system in normal and keratoconic eyes. J Cataract Refract Surg. 2018;44(1)

6. Tekin K, Sekeroglu MA, Kiziltoprak H, Doguizi S, Inanc M, Yilmazbas P. Static and Dynamic Pupillometry Data of Healthy Individuals. Clin Exp Optom, 2018; 101(5)

7. Cankaya AB, Tekin K, Kiziltoprak H, Karahan S, Yilmazbas P. Evaluation of Corneal Backward Light Scattering and Factors Affecting Corneal Transparency in Healthy Cornea. Jpn J Ophthalmol. 2018;62

8. Tekin K, Şekeroğlu MA, Kızıltoprak H, Yetkin E, Doğuizi S, Yılmazbaş P. Static and Dynamic Pupillary Characteristics in Clinically Unilateral Pseudoexfoliation Syndrome. J Glaucoma. 2018;27

9. Tekin K, Kızıltoprak H, Koç M, Göker YS, Koçer AM, Yılmazbaş P. The Effect of Corneal Infiltrates on Densitometry and High Degree Aberrations. Clin Exp Optom. 2019;102

10. Göker YS, Yılmaz S, Kızıltoprak H, Tekin K, Demir G. Quantitative Analysis of Optical Coherence Tomography Angiography Features in Patients with Nonocular Behçet's Disease. Curr Eye Res. 2019; 44

11. Yetkin E, Tekin K, Kızıltoprak H, Şekeroğlu MA, Cankurtaran V, Yaşar HH. Evaluation of Static and Dynamic Pupil Characteristics in Hyperopic Anisometropic Amblyopia. Eur J Ophthalmol. 2019; 29

12. Goker YS, Ucgul Atılgan C, Tekin K, Kızıltoprak H, Yetkin E, Yesil Karahan N, Koc M, Kosekahya P. Validity of Optical Coherence Tomography Angiography as a Screening Test for Early Detection of Retinal Changes in Patients Receiving Hydroxychloroquine Therapy. Curr Eye Res. 2019; 44

13. Kosekahya P, Koc M, Caglayan M, Kiziltoprak H, Tekin K, Atilgan CU. Longitudinal Corneal Tomographic Changes in Eyes of Patients with Unilateral and Bilateral Non Progressive Keratoconus. Cont Lens Anterior Eye. 2019;42

14. Kosekahya P, Caglayan M, Koc M, Kiziltoprak H, Tekin K, Atilgan CU. Longitudinal Evaluation of Keratoconus Progression Using a New Progression Screen. Eye Contact Lens. 2019; 45

15. Inanc M, Kiziltoprak H, Hekimoglu R, Tekin K, Ozalkak S, Koc M, Bayramoglu E, Zirh S, Yuruker S, Aycan Z. Tear Film and Ocular Surface Changes in Children with Type 1 Diabetes Mellitus. Ocul Immunol Inflamm. 2020;28

16. Özülken K, Yüksel E, Tekin K, Kızıltoprak H, Aydoğan S. Comparison of Wavefront-Optimized Ablation and Topography-Guided Contour Ablation with the LYRA Protocol in LASIK. J Refract Surg. 2019;35

17. Koc M, Aydemir E, Tekin K, Inanc M, Kosekahya P, Kiziltoprak H. Biomechanical Ana

18. Inanc M, Tekin K, Kiziltoprak H, Ozalkak S, Doguizi S, Aycan Z. Changes in Retinal Microcirculation Predict Clinical Onset of Diabetic Retinopathy in Children with Type 1 Diabetes Mellitus. Am J Ophthalmol. 2019

19. Doğuizi S, Yılmazoğlu M, Kızıltoprak H, Şekeroğlu MA, Yılmazbaş P. Quantitative Analysis of Retinal Microcirculation in Children with Hyperopic Anisometropic Amblyopia: An Optical Coherence Tomography Angiography Study. J AAPOS. 2019;23

20. Tekin K, Kızıltoprak H, Şekeroğlu MA, Yetkin E, Bayraktar S, Yılmazbaş P. Static and Dynamic Pupillary Characteristics in Pseudoexfoliation Syndrome and Glaucoma. Clin Exp Optom. 2020;103

21. Kızıltoprak H, Koç M, Tekin K, Hekimoğlu R, İnanç M, Yılmaz AA, Elmaoğulları S, Aycan Z. Local Ocular Surface Changes in Children with Hashimoto's Thyroiditis. Ocul Immunol Inflamm. 2020; 28

22. Kızıltoprak H, Koç M, Yetkin E, Tekin K, İnanç M, Özülken K. Additive Effect of Topical Nepafenac on Mydriasis in Patients with Diabetes Mellitus. Eye Contact Lens. 2020; 46

23. Göker YS, Özdal PC, Erol YO, Kızıltoprak H, Karatepe MS. Evaluation of Radial Peripapillary Capillary Density in Patients with Fuchs Uveitis Syndrome. Graefes 

24. Yetkin E, Citirik M, Teke MY, Kiziltoprak H. Postoperative Eccentric Macular Holes in Vitreomacular Interface Diseases. Int Ophthalmol. 2020; 40

25. Özülken K, Aydemir Aksoy G, Aydemir E, Kızıltoprak H, Yüksel E. Comparison of the Results of Two Different Accelerated Corneal Cross-Linking Procedures in Patients with Keratoconus. Balcan Med J. 2020

26. Goker YS, Kiziltoprak H. Quantitative Analysis of Radial Peripapillary Capillary Plexuses in Patients with Clinically Unilateral Pseudoexfoliation Syndrome. Graefes Arch Clin Exp Ophthalmol. 2020

27. Koc M, Tekin K, Kiziltoprak H, Inanc M, Kosekahya P, Ozulken K, Durukan I. Topometric and Tomographic Evaluation of Subclinical Keratoconus. Ophthalmic Epidemiol. 2020

28. Can ME, Kızıltoprak H, Buluş AD, Özkoyuncu D, Koç M, Özdemir Yıldız Z. Corneal Biomechanical Properties in Childhood Obesity. J Pediatr Ophthalmol Strabismus. 2020

29. İlhan C, Çitırık M, Uzel MM, Kızıltoprak H, Tekin K. Usability of Systemic Inflammatory Markers as Diagnostic Indicators in the Pathogenesis of Diabetic Macular Edema. Arq Bras Ophthalmol. 2020

30. Inanc M, Tekin K, Teke M

31. Kiziltoprak H, Atesoglu Hİ, Tekin K, Yetkin E, Koc M. Evaluation of Densitometric Analysis for Early Detection of Corneal Blood Staining in Hyphema. cornea 2021;40(4)

32. Kocer AM, Kiziltoprak H, Fen T, Goker YS, Acar A. Evaluation of radial peripapillary capillary density in patients with newly diagnosed iron deficiency anemia. Int Ophthalmol. 2021

33. Ozulken K, Kiziltoprak H, Yuksel E, Mumcuoğlu T. A Comparative Evaluation of Diffractive Trifocal and New Refractive/Extended Depth of Focus Intraocular Lenses for Refractive Lens Exchange. Curr Eye Pic. 2021

34. Kiziltoprak H, Tekin K, Cevik S, Kocer AM, Goker YS. Normative Data Assessment of Peripapillary and Macular Vessel Density and Foveal Avascular Zone Metrics Using Optical Coherence Tomography Angiography in Children. J Pediatr Ophthalmol Strabismus. 2020

35. Goker YS, Atılgan CU, Tekin K, Kızıltoprak H, Kosekahya P, Demir G, Kılıc D. Association between disorganization of the retinal inner layers and capillary nonperfusion area in patients with retinal vein occlusion. Arq Bras Ophthalmol. 2020

36. Ozkan HH, Koc M, Kiziltoprak H, Tekin K, Aydemir E. Evaluation of topographic, tomographic, topometric, densitometric, and aberrometric features of cornea with pentacam HR system in subclinical keratoconus. Int Ophthalmol. 2021

37. Oren B, Aksoy Aydemir G, Aydemir E, Atesoglu HI, Goker YS, Kızıltoprak H, Ozcelik KC. Quantitative assessment of retinal changes in COVID-19 patients. Clin Exp Optom. 2021

38. Aydemir E, Aydemir GA, Atesoglu HI, Goker YS, Ozcelik KC, Kiziltoprak H. The Impact of Coronavirus Disease 2019 (COVID-19) on Retinal Microcirculation in Human Subjects. Klin Monbl Augenheilkd. 2021

39. Aydemir E, Aksoy Aydemir G, Atesoglu Hİ, Goker YS, Kiziltoprak H, Ozcelik KC. Objective Assessment of Corneal and Lens Clarity in Patients with COVID-19. Optom Vis Sci. 2021

 40. Aydemir GA, Kocabaş DO, Bilen A, Aydemir E, Bayat AH, Oren B, Kiziltoprak H. Evaluation of Retinal Layer Thicknesses in Patients with Keratoconus Using Retinal Layer Segmentation Analysis. Klin Monbl Augenheilkd. 2022 Mar 23. Epub ahead of print. 

41. Aksoy Aydemir G, Ilhan C, Pehlıvanoglu B, Aydemir E, Kiziltoprak H, Bolu S. Conjunctival Histopathological Changes in Children With Vitamin D Deficiency. Eye Contact Lens. 2022

42. Nalcacioglu P, Sen E, Aydemir E, Kiziltoprak H, Yaşar HH. Objective assessment of corneal backscattered light in myopic, hyperopic, and emmetropic children. Photodiagnosis Photodyn Ther. 2022

43. Recep ÖF, Kocabas DO, Kiziltoprak H, Ozulken K. Effects on Wavefront Aberration after Short-term Wear of Senofilcon A Photochromic Contact Lens. Klin Monbl Augenheilkd. 2022 Dec 23. English. 

44. Kiziltoprak H, Kocabas DO, Aydemir GA, Kalınlı EM, Aydemir E, Oren B. Choroidal Vascular Index in Patients With Attention-Deficit/Hyperactivity Disorder and Methylphenidate. J Pediatr Ophthalmol Strabismus. 2022 Dec 22

b) Uluslararası Alan İndeksleri Tarafından Taranan (A Bendinde Belirtilen İndeksler Dışındaki İndekslerde Yer Alan) Dergilerde Yayımlanmış Özgün Araştırma Makalesi
1. Kiziltoprak H, Tekin K, Inanc M, Goker YS. Cataract in Diabetes Mellitus. World J Diabetes 2019

2. Kızıltoprak H, Tekin K, Sekeroglu MA, Yetkin E, Doguizi S, Yilmazbas P. Static and Dynamic Pupillary Responses in Patients with Different Stages of Diabetic Retinopathy, Neuro-Ophthalmology. 2020

3. Göker YŞ, Kiziltoprak H, Tekin K, Yetkin E, Karatepe MS, Özdemir K, Demir G. Direct and Crossover Effects of Phenylephrine and Cyclopentolate on Foveal Avascular Zone and Vessel Density of Macular Capillary Plexuses: An Optical Coherence Tomography Angiography Study. Rom J Ophthalmol. 2020

c) Presentation of Cases Published in Journals Within the Scope of Clause a)

1. Kiziltoprak H, Yetkin E, Tekin K, Koc M, Akalin I, Teke MY. Intravitreal Aflibercept for the Treatment of Choroidal Neovascularization Associated with Rubella Retinopathy. Int Ophthalmol. 2019

2. Ozates S, Kiziltoprak H, Koc M, Uzel MM, Teke MY. Reply. Retina. 2019 3. Kiziltoprak H, Tekin K, Dilli A, Teke MY. Retinal Vein Passing through a Congenital Optic Nerve Pit. J Ophthalmic Vis Res. 2021

Publications Published in Nationally Refereed Journals:

1. Tekin K, Koç M, Kızıltoprak H. A Rare Complication of Nd:YAG Laser Capsulotomy: Vitreous Prolapse and Intraocular Lens Dislocation. Glo-Kat 2016

2. Kızıltoprak H, Ozkoyuncu D, Çıtırık M. Treatment Approaches to Free Floating Iris Cyst in the Anterior Chamber Due to a Case. MN Ophthalmology. 2017

3. Kızıltoprak H, Özateş S, Teke MY, Şimşek M. Combined Central Retinal Vein Occlusion and Cilioretinal Artery Occlusion. Ret Vit 2018; 27(1)

4. Kızıltoprak H, Koç M, Tekin K, İnanç M, Kurnaz E, Aycan Z, Yılmazbaş PY. Evaluation of Higher Order Corneal Aberrations in Children with Type 1 Diabetes Mellitus with Tight Glycemic Control.Dicle Medical Journal. 2018

5. Özkoyuncu D, Kızıltoprak H, Tekin K, Koç M, Teke MY. Coexistence of Idiopathic Choroidal Fold and Retinal Pigment Epithelial Tear Due to Intravitreal Bevacizumab Injection. Ret-Vit 2018

6. Kızıltoprak H, Çiçek P, Doğuizi S, Şekeroğlu MA, Yılmazbaş P. A Morgagnian Cataract Case with Spontaneous Posterior Capsule Rupture. MN Ophthalmology 2018

7. Kızıltoprak H, Tekin K, Teke MY. Use of Vitreon Tamponade in Rhegmatogenous Inferior Retinal Detachment: Surgical Results and Complications. Ret-Vit 2018

8. Yeşilırmak N, Tekin K, Kızıltoprak H, Koç M, Kurnaz E, Aycan Z. Early Changes in Retinal Layers of Type 1 Diabetic Patients Without Retinopathy. MN Ophthalmology 2018

9. Göker YS, Kızıltoprak H, Yetkin E, Tekin K. Optical Coherence Tomography Angiography Phase Scaling Application Findings in Patients with Non-Proliferative Diabetic Retinopathy. Turkiye Klinikleri J Ophthalmol

10. Göker YS, Tekin K, Kızıltoprak H, Atılgan CU, Kosekahya P. Choriocapillaris Signal Gaps in Patients with Diabetic Retinopathy. Turkiye Klinikleri J Ophthalmol

11. Özülken K, Yüksel E, Kızıltoprak H. Effect of Topical Pilocarpine Hydrochloride Applied After Cycloplegia on Anterior Segment Parameters. Glo-Kat 2019

12. Göker YS, Kızıltoprak H. Quantitative Characteristics of Foveal Avascular Zone and Macular Capillary Plexuses in Healthy Individuals: An Optical Coherence Tomography Angiography Study. Ret-Vit 2019

13. Göker YS, Kızıltoprak H. Optical Coherence Tomography Angiography PHASE and Density Assessment Tool Findings in Patients with Retinal Vein Occlusion. Ret-Vit 2019

14. Kızıltoprak H, Gulpamuk B, Tekin K, Teke MY. Coexistence of Retinis Pigmentosa and Posterior Staphyloma: Case Series.

15. Göker YS, Tekin K, Kızıltoprak H, Atılgan CU, Kosekahya P. Bevacizumab Treatment in Diabetic Macular Edema: A Real Life Study. Dicle Medical Journal / Dicle Med J 2019

16. Tekin K, Kızıltoprak H, Yel S, İnanç M, Koç M, Aycan Z. Evaluation of Static and Dynamic Pupillar Parameters in Diabetic Children. Turkey Clinics J Pediatr.

17. Özülken K, Aydemir GA, Kızıltoprak H, Aydemir E. Comparison of Central Corneal Thickness Measurements with Ultrasonic Pachymetry and Two New Optical Methods. MN Ophthalmology 2019;26(4)

18. Ozateş S, Sen E, Kiziltoprak H, Kilic AO, Elgin U. Assessment of Corneal Endothelial Toxicity of Antimetabolite Drugs Used in Trabeculectomy Surgery. Glo-Kat 2019;14(4)

19. Ozulken K, Kiziltoprak H. Objective Accommodation Amplitude Measurement with a new Autorefractometer Device. Beyoglu Eye J. 2019;4(3)

20. Tekin K, Kiziltoprak H, Inanc MI, Sekeroglu MA. Evaluation of Retinal Layers in Hyperopic Anisometropic Amblyopia with Optical Coherence Tomography Segmentation Analysis. Turkiye Klinikleri J Ophthalmol. 

21. Kızıltoprak H, Yasar HH, Tekin K. The Effect of Inferior Oblique Muscle Z-Myotomy in Patients with Primary Inferior Oblique Overaction. Turk J Ophthalmol 

22. Kızıltoprak H, Tekin K, Teke MY. A Case of Unilateral Retinitis Pigmentosa with Lamellar Macular Hole. Ret-Vit 2020 

23. Kiziltoprak H, Tekin K, Yetkin E, Sekeroglu MA. Static and Dynamic Pupil Characteristics in Myopic Anisometropic Amblyopia. Beyoglu Eye J. 2020;5(2)

24. Kiziltoprak H, Tekin K, Koc M, Teke MY. Resolution of Vacuole in Central Serous Chorioretinopathy Following Intravitreal Bevacizumab Injection. Ret-Vit 2020;29(4)

25. Uzel MM, Ozdal PC, Ozates S, Kiziltoprak H. Estimation of HLA-B27 Positivity by Peripapillary Retinal Nerve Fiber Layer Thickness in Patients with Acute Anterior Uveitis. Ret-Vit 2020;29(4)/ret.vit.2020

26. Aydemir E, Koç M, Kızıltoprak H, Tekin K, Aydemir GA, Özkan HH. Accelerated Corneal Cross-linking Treatment in Keratoconus Patients: Three-Years Results. Turkiye Clinics J Ophthalmol.  

27. Kızıltoprak H, Kocer AM, Fen T, Göker YS. Evaluation of Corneal and Lenticular Parameters in Iron Deficiency Anemia. Beyoglu Eye J. 2021

28. Aydemir E, Kiziltoprak H, Aksoy Aydemir G. Comparison of Clinical Outcomes of Upper Eyelid Blepharoplasty Using Two Different Suture Techniques. Beyoglu Eye J 2022

29. Oren B, Kiziltoprak H, Onder F, Kocabas DO, Yetkin E, Bilen A. Evaluation of Choroidal Vascular Structure in Hyperopic Anisometropic Amblyopia. Beyoglu Eye J. 2023 Mar 1

30. Oren B, Aksoy Aydemir G, Duzayak S, Kızıltoprak H. Evaluation of Retinal Layers and Choroidal Structures Using Optical Coherence Tomography in Alopecia Areata. Medeni Med J. 2023 Jun 

Areas of Expertise and Interest:

• Keratoplasty (Penetrating and Lamellar)
• Refractive Surgery
• Cataract Surgery
• Corneal Biomechanics and Keratoconus

Education:

• Istanbul University, Faculty of Medicine

Professional and Observational Experience:

• Assistant Doctor (Ophthalmology) at Beyoğlu Eye Training and Research Hospital, 2006-2010
• Ophthalmologist at Ağrı Patnos Government Hospital, 2011-2012
• Ophthalmologist (Cataract and Refractive Surgery Department, Cornea and Ocular Surface Disease Department) at Beyoğlu Eye Training and Research Hospital, 2012-2018
• Associate Professor at University of Health Sciences, Beyoğlu Eye Research and Training Hospital, Istanbul, 2018-2024
• Professor at Acıbadem District Hospital, 2024-Present

International Diplomas:

• European Board of Ophthalmology Diploma (EBOD) 
• International Council of Ophthalmology - Basic Science, 2017
• International Council of Ophthalmology - Optics and Refraction, 2017
• International Council of Ophthalmology - Clinical Science, 2018
• International Council of Ophthalmology - Advanced, 2018 (FICO)

Certificates:

• Basic Good Clinical Practices
• Advanced Good Clinical Practices

Memberships in Scientific Organizations:

• Turkish Ophthalmology Society
  • Active Member, Cornea and Ocular Surface Department
  • Active Member, Young Ophthalmologist Department
  • Active Member, Cataract and Refractive Surgery Department

EDUCATION:

2015

Uludag University, Ophthalmology

2008

Eskisehir Osmangazi University, Faculty of Medicine

2001

Kırıkkale Science High School, Numerical

EXPERIENCE:

2019 Gazi University Faculty of Medicine Ophthalmology (Vitreo-Retinal Surgery and Medical Retina Fellowship)

2016 SBÜ Zekai Tahir Burak EAH (Retinopathy of Prematurity Fellowship)/

2015 - 2023 Kocaeli Derince Training and Research Hospital

2023 - Medipol University Pendik Hospital

The first ophthalmologist from South East Asia to be invited to join the Project ORBIS International.

Certificate Clinical Fellowship in Cornea and External Disease Washington University Eye Center, Washington University, St. Louis, Missouri, USA.

• Education:
•  
• Medical Degree, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Thailand
• Residency in Ophthalmology, Department of Ophthalmology, Faculty of Medicine at Chiang Mai University, Chiang Mai, Thailand
• Fellowship in International Ophthalmology, Project ORBIS, Inc. New York, USA
• Clinical Fellowship in Cornea and External Disease (Under Pepose, J.S., M.D. Ph.D.) Washington University Eye Center Washington University, St. Louis, Missouri, USA

Work Experience:

• 1997 - Present : Medical Director and Refractive Surgery Specialist at TRSC International LASIK Center, Thailand
• 1993 - 2001 : Head of Cornea and Refractive Surgery, Ramathibodi Hospital, Mahidol University, Thailand
• 1990 - 1991 : Field Medical Director, Project ORBIS, New York, USA

Birth place and date

Konya, 1984

Foreign Languages ​​Known

English, German

Educational Status and Experience

Kayseri City Hospital, Kayseri, Associate Professor (2023)

St. Franziskus-Hospital, Zentrum für Refraktive Chirurgie

Germany, Cornea and Refractive Surgery Fellowship (2022-2023)

Kayseri City Hospital, Kayseri, Specialist Doctor (2018-2022)

Hatice-Muammer Kocatürk State Hospital, Kayseri, Specialist Doctor (2017-2018)

Gazi Yaşargil Training and Research Hospital, Diyarbakır, Specialist Doctor (2014-2017)

Bülent Ecevit University Faculty of Medicine, Zonguldak, Specialization in Medicine (2010-2014)

Abant İzzet Baysal University Faculty of Medicine, Bolu, Medical Education (2007-2010)

GATA Gülhane Military Medical Faculty, Ankara, Medical Education (2003-2007)

Kuleli Military High School, Istanbul (1999-2003)

Case Experience

Experience of over 10,000 surgical cases.

Associations of which he is a member

ESOPRS (European Society Of Ophthalmic Plastic And Reconstructive Surgery), Member, 2022

ESCRS (European Society of Cataract and Refractive Surgeons), Member, 2021

MRCSEd (The Royal College of Surgeons of Edinburgh), Member, 2021

TOD-GO (Turkish Ophthalmology Association - Young Ophthalmologists Group), Member, 2018

TOD (Turkish Ophthalmology Association), Member, 2010

Certificates

2016 European Board of Ophthalmology Diploma, FEBO, Paris

2019 International Council of Ophthalmology (ICO), Visual Sciences

2020 International Council of Ophthalmology (ICO), Optics and Refraction

2020 International Council of Ophthalmology (ICO), Clinical Science

2021 International Council of Ophthalmology (ICO), Advanced Examination, FICO

2019 Ophthalmology Clinical Research Training, Istanbul

2014 Communication, Anterior Segment and Toric Lens Applications, Prague

Books

Sea Sword

MCQ for International Ophthalmology Board Exams – 2

Chapter 4, Oculoplasty, (2021). Anatolian Bookstore.

Awards

FICO, International Fellowship Scholarship 2022

TÜBİTAK, International Scientific Publications Incentive Scholarship UBYT, 2022

TÜBİTAK, International Scientific Publications Incentive Scholarship UBYT, 2020

Ministry of Health, Certificate of Appreciation, 2018

Prof. Dr. Ahmet Satici adalah seorang ahli bedah mata berpengalaman dengan lebih dari 31 tahun di bidang ini. Dia berspesialisasi dalam berbagai operasi mata dan telah melakukan lebih dari 20.000 prosedur. Setiap tahun, ia menyelesaikan lebih dari 1.000 operasi yang sukses, menunjukkan keahlian dan dedikasinya.

Dr. Satici menjadi Associate Professor pada tahun 2002. Pada tahun 2009, ia dipromosikan menjadi Profesor penuh di Universitas Harran. Ia adalah anggota Asosiasi Oftalmologi Turki dan Asosiasi Medis Turki. Keanggotaannya mencerminkan komitmennya terhadap pertumbuhan profesional dan kemajuan medis.

Dr. Huseyin Aslankara is an experienced ophthalmologist. He has published many scientific articles in international journals. He has also presented his work at both national and international conferences. Dr. Aslankara is a member of the Turkish Ophthalmology Association, the American Academy of Ophthalmology, and the European Society of Cataract and Refractive Surgeons.

He holds the FEBO title after passing the European Board of Ophthalmology Qualification Exam. His areas of expertise include retinal diseases, vitreoretinal and cataract surgery, femtosecond laser techniques, excimer laser procedures, strabismus, pediatric eye diseases, glaucoma, and eyelid surgeries.

Work Experience

• 2003-2011: Worked in public hospitals.
• 2011 - Present: Working in the private sector, currently at the Eye Clinic of Private Koru Hospital (Çukurambar).

Education

• 1999: Graduated from Ankara University Faculty of Medicine.
• 2003: Completed specialization at Ankara Training and Research Hospital Eye Clinic.

Specialization

• Cataract and Other Anterior Segment Surgeries
• Refractive Surgery
• Retinal Diseases (Experience with over 30,000 cases)

Language Skills

• English

Professional Memberships

• TOD (Turkish Ophthalmological Association)
• TCOD (Turkish Republics Ophthalmology Association)
• AAO (American Academy of Ophthalmology)

Dr. Ihsan Yilmaz is a respected retina specialist. He treats retinal detachment, diabetic and hypertensive retinopathy, and performs complex macular surgeries. He has completed hundreds of successful vitreoretinal procedures. Dr. Yilmaz is also skilled in advanced Excimer Laser vision correction, including Lasik, PRK, and No-touch techniques. His work has helped many patients regain clear vision without glasses.

Dr. Yilmaz trained at the Vance Thompson Vision Center in the U.S. He combines advanced American surgical methods with Turkish medical practice. He holds accreditation from the European Board of Ophthalmology. He also serves on the TOA Young Ophthalmologists Executive Board. Dr. Yilmaz is a member of organizations such as ARVO, AAO, and ASCRS. He is dedicated to academic excellence and innovation in ophthalmology.

Pendidikan :

Universitas Istanbul, Fakultas Kedokteran Istanbul, September 2004 – Juli 2010

Universitas Istanbul, Fakultas Kedokteran Istanbul, Departemen Ortopedi, Residen Februari 2011 - April 2011

Universitas Istanbul, Fakultas Kedokteran Istanbul, Departemen Oftalmologi, Residen Agustus 2011 - Maret 2016

Universitas Thomas Jefferson, Wills Eye Institute, Departemen Onkologi Okular, Pengamatan Agustus 2012 - September 2012

Kementerian Kesehatan Turki, Rumah Sakit Negara Hakkari, Klinik Oftalmologi, Dokter Spesialis Mata Juli 2016 – Maret 2018

Universitas Van Yuzuncu Yil, Fakultas Kedokteran, Departemen Oftalmologi, Asisten Profesor, Maret 2018 – Oktober 2021

Universitas Van Yuzuncu Yil, Fakultas Kedokteran, Departemen Oftalmologi, Profesor Madya, Oktober 2021 – Desember 2021

Universitas Istanbul Yeni Yuzyil, Fakultas Kedokteran, Departemen Oftalmologi, Profesor Madya, Januari 2022 – sekarang

Kualifikasi Pendidikan :

1. Penilaian ilmu dasar oftalmologi oleh International Council of Ophthalmology (ICO) lulus pada April 2017

2. Ujian Optik & Refraksi International Council of Ophthalmology (ICO) lulus pada April 2017

3. Ujian Ilmu Klinis dalam Oftalmologi oleh International Council of Ophthalmology (ICO) lulus pada April 2018

4. Menerima beasiswa ICO-STAAR Bedah Tiga Bulan dalam Vitreo-Retina di University of Kansas, Fakultas Kedokteran, Departemen Oftalmologi di Prairie Village, KS, Amerika Serikat di bawah pengawasan Prof. Radwan Aijlan dari 6 April 2020 hingga 5 Juli 2020.

5. Ujian Lanjutan dalam Oftalmologi oleh International Council of Ophthalmology (ICO) lulus pada Juli 2020.

6. United States Medical Licensing Examination (USMLE) Step 1 lulus pada 7 Januari 2021 dengan 221 poin.

7. United States Medical Licensing Examination (USMLE) Step 2 CK lulus pada 25 Agustus 2021 dengan 214 poin.

Presentasi & Poster :

1. Kongres Oftalmologi Nasional ke-47, Efektivitas terapi fotodinamik pada hemangioma koroid sirkumsirkum, Presentasi lisan, Ozer MD, Tuncer S, November 2013, Antalya, Turki.

2. Kongres Oftalmologi Nasional ke-48, Fitur klinis dan hasil pengobatan rhabdomyosarcoma oftalmik primer: Pengalaman pusat tersier, Ozer MD, Ulas MG, Tuncer S, Presentasi lisan, November 2014, Antalya, Turki

3. Pertemuan ISOO 2015, Hasil Jangka Panjang Terapi Kombinasi (Suntikan Perilesional dan Topikal) Interferon Alpha-2b dalam Manajemen Neoplasia Skuamosa Permukaan Mata, Tuncer S, Ozer MD, Presentasi lisan, Juni 2015, Paris, Prancis

4. Kongres Oftalmologi Nasional ke-49. Pola presentasi klinis sindrom Vogt-Koyanagi-Harada pediatrik dan hasil tindak lanjut jangka panjang, Kiragi D, Ozer MD, Lider-Gezer M, Oray M, Tugal-Tutkun I, Presentasi lisan, November 2015, Istanbul, Turki.

5. Kongres Oftalmologi Nasional ke-49, Ketebalan kornea sentral dan dimensi cakram optik pada pasien glaukoma, Bayraktar S, Ozer MD, Izgi B, Poster, November 2015, Istanbul, Turki.

6. Kongres Oftalmologi Nasional ke-49, Analisis lapisan serat saraf retina dan ketebalan koroid pada pasien dengan sklerosis sistemik untuk mengidentifikasi faktor risiko potensial untuk glaukoma tekanan normal, Ceylan E, Ozer MD, Ekinci M, Yilmaz YC, Poster, November 2015, Istanbul, Turki.

7. Kongres Oftalmologi Nasional ke-50, Pengobatan degenerasi makula terkait usia dengan Ranibizumab intravitreal: Pengalaman kehidupan nyata, Cebeci Z, Yilmaz YC, Ozer D, Kir N, Presentasi lisan, November 2016, Antalya, Turki

8. Kongres Oftalmologi Nasional ke-51, Komplikasi jarang terlihat dari operasi katarak: Hematoma Endokapsular, Ozer MD, Batur M, Artuç T, Seven E, Tekin S, Poster, November 2017, Antalya, Turki

9. Kongres Oftalmologi Nasional ke-52, Nanophthalmos dengan Lipatan Makula, Yavuzer B, Batur M, Seven E, Ozer MD, Poster, November 2018, Antalya, Turki

10. Kongres Oftalmologi Nasional ke-52, Fitur Klinis dan Metode Pengobatan Kasus Selulitis Orbital, Mesen S, Tekin S, Batur M, Duzenli U, Seven E, Ozer MD, Poster, November 2018, Antalya, Turki

11. Kongres Oftalmologi Nasional ke-52, Seri Kasus: Luka Bakar Kimia Mata, Tekin S, Artuç T, Batur M, Ozer MD, Poster, November 2018, Antalya, Turki

12. Kongres Oftalmologi Nasional ke-52, Kehilangan Pendengaran Sensorineural yang Mempengaruhi Frekuensi Rendah pada Pasien dengan Pseudoeksfoliasi, Ozer MD, Batur M, Duzenli U, Seven E, Tekin S, Poster, November 2018, Antalya, Turki

13. Kongres Oftalmologi Nasional ke-52, Intubasi tabung silikon oleh stent Ritleng pada anak-anak di atas dua tahun dengan obstruksi saluran nasolakrimal, Ocal H, Seven E, Tekin S, Ozer MD, Batur M, Poster, November 2018, Antalya, Turki

14. Kongres Oftalmologi Nasional ke-52, Tampilan Bintik Merah Ceri di Makula dan Alkaptonuria: Laporan Kasus, Mesen S, Batur M, Ozer MD, Tekin S, Poster, November 2018, Antalya, Turki

15. Kongres Oftalmologi Nasional ke-52, Komplikasi Langka pada Implantasi Deksametason Intravitreal: Migrasi Implan ke Ruang Anterior, Gulbay S, Batur M, Ozer MD, Tekin S, Poster, November 2018, Antalya, Turki

16. Kongres Oftalmologi Nasional ke-52, Efek Tetes Mata Koenzim Q10 pada Penyembuhan Luka Kornea dalam Pengobatan Keratitis Bakteri, Batur M, Seven E, Tekin S, Ozer MD, Presentasi lisan, November 2018, Antalya, Turki

17. Kongres Euretina ke-19, Efek produksi humor aquous yang berkurang pada potensi pertumbuhan bakteri di mata kelinci, Batur M, Ozer M, Tekin S, Presentasi lisan, September 2019, Paris, Prancis

18. Kongres Oftalmologi Nasional ke-53, Evaluasi fitur klinis pasien dengan hifema akibat trauma tumpul, Seven E, Kebapci F, Tekin S, Batur M, Ozer MD, Presentasi lisan, November 2019, Antalya, Turki

19. Kongres Oftalmologi Nasional ke-53, Kepatuhan terhadap terapi tetes mata dan hubungan kepatuhan dengan perkembangan pada pasien glaukoma, Tekin S, Ocal H, Seven E, Batur M, Ozer MD, Poster, November 2019, Antalya, Turki

20. Kongres Oftalmologi Nasional ke-53, Kehilangan penglihatan bilateral mendadak-sementara setelah pelepasan kateter venosa sentral, Altas AS, Batur M, Sayir F, Seven E, Tekin S, Ozer MD, Poster, November 2019, Antalya, Turki

21. Kongres Oftalmologi Nasional ke-53, Evaluasi klinis terapi fotokoagulasi laser Argon pada pasien dengan robekan retina, Ocal H, Seven E, Batur M, Tekin S, Ozer MD, Poster, November 2019, Antalya, Turki

22. Kongres Oftalmologi Nasional ke-53, Kerusakan makula akibat epilasi laser: laporan kasus, Batur M, Ocal H, Ozer MD, Seven E, Tekin S, Poster, November 2019, Antalya, Turki

23. Kongres Oftalmologi Nasional ke-53, Makulopati Fototoksik akibat Penggunaan Berlebihan Inframerah Iluminator Bersama Scope Penglihatan Malam Tangan, Ozer MD, Batur M, Seven E, Tekin S, Savasan M, Poster, November 2019, Antalya, Turki

24. Kongres Oftalmologi Nasional ke-54, Ophthalmoplegia internal setelah infeksi cacar air, Gedik AC, Ozer MD, Poster, November 2020, Virtual, Turki.

Pengalaman Kerja :

1. Studi Tahap II untuk Menganalisis Sarilumab dalam Uveitis Non-Infeksius (SARILNIUSATURN-Sanofi), Peneliti Pendamping (Peneliti Utama: Prof. Dr. Ilknur Tugal-Tutkun)

2. Efikasi Gevokizumab dalam Pengobatan Pasien dengan Uveitis Penyakit Behçet (EYEGUARD-A&C-Servier), Peneliti Pendamping (Peneliti Utama: Prof. Dr. Ilknur Tugal-Tutkun)

3. Studi Acak, Tertutup Ganda, Dikendalikan Plasebo tentang Efikasi Gevokizumab dalam Pengobatan Pasien dengan Uveitis Penyakit Behçet (EYEGUARD-B-Servier), Peneliti Pendamping (Peneliti Utama: Prof. Dr. Ilknur Tugal-Tutkun)

4. Studi 12 bulan, acak, tertutup ganda, dikendalikan semu, multicenter untuk mengevaluasi efikasi dan keamanan injeksi intravitreal ranibizumab 0,5 mg akibat edema makula akibat faktor pertumbuhan endotel vaskular (VEGF) (RFB002-Novartis), Peneliti sub-injeksi (Peneliti Utama: Prof. Dr. Nur Kir)

5. Studi fase III multicenter, acak, tertutup ganda, dikendalikan semu untuk menilai efikasi dan keamanan lampalizumab yang diberikan secara intravitreal kepada pasien dengan atrofi geografis sekunder akibat degenerasi makula terkait usia (GX29176-Roche), Fotografer (Peneliti Utama: Prof. Dr. Nur Kir)

Dipilih sebagai anggota aktif Asosiasi Oftalmologi Turki, Dewan Dokter Muda, 2020 - sekarang

EDUCATION

Mersin University, Faculty of Medicine, 2009

Istanbul Göztepe Training and Research Hospital, Residency in Ophthalmology, 2009 to 2013

PROFESSIONAL EXPERIENCE

Mardin Midyat State Hospital – Specialist Ophthalmologist, 2014 to 2020

Mardin Training and Research Hospital – Specialist Ophthalmologist, 2020 to 2022

Başakşehir Çam and Sakura City Hospital – Specialist Ophthalmologist, 2022to 2024

Westeye Hospital, Erbil – Specialist Ophthalmologist, 2024 to 2025

Istanbul Tema Hospital – Specialist Ophthalmologist, 2024 to 2025

AREAS OF EXPERTISE

-Cataract and Refractive Surgery

-Corneal Diseases and Keratoplasty

-Strabismus and Strabismus Surgery

-Eyelid and Lacrimal System Surgery

-Ocular Trauma Surgery

TRAINING & CERTIFICATIONS

-Vitrectomy Training at Ulucanlar Eye Training and Research Hospital, 2020

MEMBERSHIPS

-Member of the Turkish Ophthalmological Association (TOD)

PUBLICATIONS

1)Changes caused by fluorescein in the tear film evaluated with hybrid break-up time test as a new method - Part Two: Its effect on breakup locations and other quantitative values, Photodiagnosis and Photodynamic Therapy, 2023

2)The profile of patients attending to the general emergency department with ocular complaints within the last year: is it a true ocular emergency?, BMC Ophthalmology, 2024

3)Medium-term outcomes of three horizontal muscle surgery in large-angle infantile esotropia, Journal of Pediatric Ophthalmology & Strabismus, 2014

4)Evaluation of Anterior Segment Parameters Using Scheimpflug Topography Device in Patients Undergoing Nd:YAG Laser Posterior Capsulotomy: Retrospective Study, Türkiye Klinikleri Journal of Ophthalmology, 2024

5)Publication patterns of ophthalmology residency dissertations in Turkey, European Journal of General Medicine, 2015

6)Evaluation of the Effect of Infection and Immunity on the Tear Film by Scheimpflug-Placido Disc Topography – A Case Control Study, Photodiagnosis and Photodynamic Therapy, 2023

7)Changes caused by fluorescein in tear film by hybrid break-up time test - Part One: On quantitative values, Photodiagnosis and Photodynamic Therapy, 2022

8)An easy and practical method for toric intraocular lens implantation: marking corneal astigmatic axis at slit-lamp, International Ophthalmology, 2017

9)Slanted medial rectus recession is effective in the treatment of convergence excess esotropia, Journal of Pediatric Ophthalmology & Strabismus, 2014

10)A reasonable option in vitrectomized eyes: manual small incision cataract surgery, International Journal of Ophthalmology, 2014

11)The Role of Systemic Inflammation in Acquired Nasolacrimal Duct Obstruction, Beyoglu Eye Journal, 2023

12)A New Approach: Determination of the Safe Surgical Margin in Pterygium Surgery, Klinische Monatsblätter für Augenheilkunde, 2023

Dr. Nikolaos Dervenis is an experienced ophthalmic surgeon based in Thessaloniki and Larissa, Greece. He focuses on cataract surgery with IOL replacement, laser eye surgery, LASIK, and vitrectomy. He has over 15 years of experience in cataract procedures.

Dr. Dervenis has worked as a consultant in the UK's National Health System (NHS). He has published more than 55 articles in peer-reviewed journals. His research has received over 20,000 citations, showing his strong influence in ophthalmology.

Experience

2022 - 2023

Private Medipol Mega Hospitals Complex

2010 - 2010

Bezmialem Foundation University Faculty of Medicine

2010 - 2010

Bezmialem Foundation University Faculty of Medicine, Department of Ophthalmology

2001 - 2011

Vakif Gureba Training and Research Hospital, Department of Ophthalmology

2001 - 2011

Vakif Gureba Training and Research Hospital

2000 - 2001

Edirne Regional Hospital

2000 - 2001

Edirne Regional Hospital

Education

2000 Selçuk University, Ophthalmology

2000 SELÇUK UNIVERSITY, OPHTHALMOLOGY

1994 SELÇUK UNIVERSITY, FACULTY OF MEDICINE

1994 Selçuk University, Faculty of Medicine

Education

2019 İSTANBUL MEDİPOL UNIVERSITY, ASSOC. PROF. DR. - OPHTHALMOLOGY

2004 ISTANBUL PROF. DR. N. REŞAT BELGER BEYOĞLU E.A.H, SPECIALIZATION IN MEDICINE - OPHTHALMOLOGY

1999 ISTANBUL UNIVERSITY, ISTANBUL MEDICAL FACULTY

1999 ISTANBUL UNIVERSITY, ISTANBUL MEDICAL FACULTY

Publications

A. International Peer-Reviewed Journals:

Title: Comparison of different formulas for intraocular lens power calculation using a new optical biometer.

• Authors: Kaya Faruk, Koçak İbrahim, Aydın Ali, Baybora Hakan, Karabela Yunus
• Journal: Journal Français d'Ophtalmologie
• Year: 2015
• Volume: 38(8)
• Pages: 717-722
• DOI: 10.1016/j.jfo.2015.03.006

Title: Change in choroidal thickness after intravitreal injection for treatment of neovascular age-related macular degeneration: Ranibizumab versus aflibercept.

• Author: Kaya Faruk
• Journal: Journal Français d’Ophtalmologie
• Year: 2017
• Volume: 40(10)
• Pages: 832-838
• DOI: 10.1016/j.jfo.2017.04.014

Title: Effect of aflibercept on persistent macular edema secondary to central retinal vein occlusion.

• Authors: Kaya Faruk, Koçak İbrahim, Aydın Ali, Baybora Hakan, Koç Hacı, Karabela Yunus
• Journal: Journal Français d’Ophtalmologie
• Year: 2018
• Volume: 41(9)
• Pages: 809-813
• DOI: 10.1016/j.jfo.2018.01.024

Title: Epithelium-off corneal cross-linking in progressive keratoconus: 6-year outcomes.

• Author: Kaya Faruk
• Journal: Journal Français d’Ophtalmologie
• Year: 2019
• DOI: 10.1016/j.jfo.2018.09.013

Authors: Eliaçık Mustafa, Karaman Erdur Sevil, Baltepe Altıok İnci, Gülkılık İbrahim Gökhan, Anıl Aslan Cemile, Kaya Faruk

• Journal: The Kaohsiung Journal of Medical Sciences
• Year: 2016
• Volume: 32(1)
• Pages: 38-43
• DOI: 10.1016/j.kjms.2015.12.004

Authors: Karabela Yunus, Eliaçık Mustafa, Kaya Faruk

• Journal: BMC Ophthalmology
• Year: 2016
• Volume: 16(1)
• DOI: 10.1186/s12886-016-0271-8

Authors: Koçak İbrahim, Koçak Funda, Teker Bahri, Aydın Ali, Kaya Faruk, Hakan Baybora

• Journal: International Journal of Ophthalmology
• Year: 2014
• Volume: 7(4)
• Pages: 686-688

Authors: Koçak İbrahim, Aydın Ali, Kaya Faruk, Koç Hacı

• Journal: Journal Français d’Ophtalmologie
• Year: 2014
• Volume: 37(5)
• Pages: 371-376
• DOI: 10.1016/j.jfo.2013.11.012

Authors: Baybora Hakan, Kaya Faruk, Koçak İbrahim, Karabela Yunus

• Journal: Turkish Neurosurgery
• Year: 2019
• DOI: 10.5137/1019-5149.JTN.24775-18.4

Authors: Koçak İbrahim, Karabela Yunus, Karaman Mehmet, Kaya Faruk

• Journal: Journal of Refractive Surgery
• Year: 2006
• Volume: 22(8)
• Pages: 799-803
• DOI: 10.3928/1081-597X-20060901-04

B. Book Chapters:

Title: Corneal Cross-linking in Keratoconus.

• Authors: Kaya Faruk, Koçak İbrahim
• Book Title: Keratoconus: Recent Advances in Diagnosis and Treatment
• Publisher: Springer
• Year: 2017
• Pages: 163-169
• DOI: 10.1007/978-3-319-45357-0_13

Title: Intraocular Lens Power Calculation in Eyes with Previous Myopic Refractive Surgery.

• Authors: Koçak İbrahim, Kaya Faruk
• Book Title: Mastering Refractive IOLs
• Publisher: Jaypee Brothers Medical Publishers
• Year: 2018
• Pages: 107-114
• DOI: 10.5005/jp/books/14282_10

CURRICULUM VITAE

Place and Date of Birth

• Kırşehir, 1985

Language Skills

• English

Education and Experience

• 2003-2009 Gazi University Faculty of Medicine 
• 2009-2014 Ankara Atatürk Training and Research Hospital Ophthalmology Specialist 
• 2014-2017 Yenimahalle Training and Research Hospital Ophthalmology Specialist 2017-2020 Samsun Terme State Hospital 
• 2020-2024 Samsun Büyük Anadolu Hospital

Case Experience

• Experience with more than 10,000 cases over 10 years of active service as an ophthalmologist.

Memberships

• Turkish Ophthalmology Association (TOD) 
• Turkish Medical Association 
• KÜSAD