Professor Dr. Stefan Pieh is a leading Austrian ophthalmologist. He specializes in refractive and cataract surgery. Dr. Pieh leads the Eye Refractive Surgery Center at Vienna Private Clinic. He also teaches at the Medical University of Vienna. He has performed thousands of procedures to correct myopia and hyperopia. He uses excimer lasers and implantable lenses for these treatments.

Dr. Pieh is known for his research on intraocular lens image quality. He has worked at the cornea department of Vienna General Hospital since 1998. He is an honorary member of several major ophthalmological societies, including ESCRS and ASCRS. These memberships highlight his international reputation and expertise.

Professor, specialist of ophthalmology

Theppachai Thammikasakul, M.D. Ophthalmologist

Work and Educational Experiences 

Graduated (M.D. From)

Doctor of Medicine, Faculty of Medicine, Phramongkutklao College of Medicine

Certificates

Ophthalmology Certificate, Phramongkutklao Hospital

Sub-board / Fellowship in Corneal and Refractive Surgery at Khonkaen University

Current Position

Theppachai Thammikasakul is currently working as Ophthalmologist at Intrarat Hospital

Universität教授、医学博士ルパート・メナペース博士は、ヨーロッパで最も著名な眼科医の一人として、白内障および眼内レンズ（IOL）手術における革新的な業績で国際的に高く評価されています。数十年にわたり、彼は現代の眼科手術の進歩におけるリーダーであり、外科技術、研究、眼科教育の世界的標準を確立しました。

彼はウィーン大学で医学を学び、1970年代に卒業し、その後すぐにウィーン総合病院（AKH）で眼科および検眼の専門分野を始めました。彼の初期のマイクロサージェリーとレンズインプラントへの興味は、後にオーストリアおよび海外での白内障手術を変革しました。

     1970年代 – ウィーン大学で医学の勉強を終え、眼科の研修を開始しました。

     1980年代 – 前部セグメント手術に特化し、眼内レンズとファコ乳化技術の洗練に注力しました。

     1990年代 – ウィーン医科大学の眼科学教授に任命され、IOLインプラントと白内障手術の安全性に関する画期的な研究を行いました。

     2000年代 – ヨーロッパで最も重要な白内障外科医の一人として自身を確立し、国際的な外科ガイドラインに貢献し、世界中から外科医を育成しました。

     2010年代から今日にかけて – ウィーンプライバートクリニックとウィーン総合病院でシニアコンサルタントとして勤務し、先進的な白内障および屈折レンズ手術を実施し、レンズ設計と手術の最適化に関する研究を続けています。

メナペース教授は膨大な数の科学論文を著し、現代の眼内レンズの開発、手術技術の最適化、後嚢混濁のような術後合併症の予防に基本的な貢献をしました。彼の革新は世界中で採用され、数百万の患者の手術精度と視覚的成果を改善しました。

その安定した外科的技術と学問的指導力、そして生涯にわたる眼科学の進歩への献身で称賛されているメナペース教授は、臨床の卓越性を科学的革新と組み合わせ、白内障および屈折手術の未来を形作り続けています。

Dr. Ali Riza Cenk Celebi is a Professor of Ophthalmology at Acibadem University (2023–2025). He practices at Acibadem Maslak Hospital (2024–2025). He completed a glaucoma fellowship at Harvard/Mass Eye and Ear in 2016. His clinical work covers glaucoma (MIGS, seton procedures), cornea (limbal stem cell surgery), lacrimal surgery (scarless endoscopic DCR), medical retina (intravitreal injections), myopia control in children, and orbital surgery.

He earned his MD from Hacettepe University and ranked 3rd in his class. He began his ophthalmology residency after placing 11th in Turkey’s TUS exam. Certifications include ICO Basic and Clinical (2010), FEBO (2015), Turkish Board (2016), Advanced ICO/FICO (2017), and USMLE Step 4. His awards include Acibadem Academic Achievement (2015–2023), Best Presentation (2022), and TOD awards (2022–2023). He has published 58 international articles and 15 books. He holds an MSc in Biological Data Science (GPA 3.94/4.00, top of term) and completed training in AI in Healthcare in 2020.

Prof. Yusuf Yıldırım, M.D.

Ophthalmology

Areas of Expertise and Interest

• Cataract and Refractive Surgery
• Cornea and Ocular Surface Diseases
• Ocular Surface Reconstruction
• Cornea Transplantation (PK, DALK, DMEK)
• Refractive Surgery (PRK, LASIK, SMILE, phakic IOLs)

Education and Career

• 2006 – 2010, Beyoğlu Eye Training and Research Hospital / Resident in Ophthalmology
• 2007, Sub-Investigator, Clinical Trial on Age-Related Macular Degeneration (Neovista, Inc.)
• 2009 – 2011, Sub-Investigator, Keraflex Treatment for Myopia (Avedro, Inc.)
• 2016, European Board of Ophthalmology (FEBO) Certification
• 2018, International Council of Ophthalmology (FICO) Certification
• 2019, Cornea and External Disease Subspecialty Diploma
• 2020, Membership, Royal College of Surgeons of Edinburgh
• Until 2024, Professor and Clinical Education Chief, Başakşehir Çam and Sakura City Hospital
• 2024 – Present, Professor and Clinical Educator, Istanbul Medipol University, Medipol Acıbadem District Hospital

Career

Born in Trabzon in 1982, Prof. Yusuf Yıldırım completed his high school education at Kanuni Anatolian High School and earned his medical degree from Istanbul University Faculty of Medicine in 2006. He pursued his residency at Beyoğlu Eye Training and Research Hospital, where he contributed to clinical trials on age-related macular degeneration and myopia treatment. Prof. Yıldırım's clinical focus lies in cataract and refractive surgeries, as well as corneal and ocular surface diseases. He has performed over 10,000 cataract surgeries, numerous ocular surface reconstructions, and advanced corneal transplants (PK, DALK, DMEK). His refractive surgery experience includes PRK, LASIK (mechanical and femtosecond), SMILE, and phakic IOL implantation. He continues to participate in clinical research, particularly involving toric phakic IOLs. He holds multiple distinguished certifications and memberships including FEBO (2016), FICO (2018), a Corneal Subspecialty Diploma (2019), and Membership of the Royal College of Surgeons of Edinburgh (2020). In his academic career, Prof. Yıldırım has contributed to the education of numerous residents and has published widely in the field.

Publications

• Author of 84 peer-reviewed scientific articles
• H-index: 17 (Web of Science), 23 (Google Scholar)
• Total Citations: 830 (Web of Science), 1,451 (Google Scholar)

Books and Book Chapters

• Ocular Surface Disorders
• Corneal Diseases and Surgery
• Refractive Errors (including Presbyopia)

Certifications and Awards

• European Board of Ophthalmology (FEBO), 2016
• International Council of Ophthalmology (FICO), 2018
• Cornea and External Disease Subspecialty Diploma, 2019
• Member of the Royal College of Surgeons of Edinburgh, 2020
• 2nd Place – Best Poster Award, ESCRS Conference, London, 2014

Dr. Digdem Begendi is an experienced ophthalmologist. She specializes in cataract surgery with IOL replacement, LASIK, and strabismus treatment. She is skilled in advanced procedures, including intraLase laser eye surgery, laser iridotomy, and femtosecond laser techniques.

Dr. Begendi has published several articles in national and international journals. Her work shows a strong commitment to research and clinical care. She is a member of the Turkish Ophthalmology Association. She completed her medical degree at Istanbul Bilim University and her specialization at Akdeniz University.

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

Dr. Matben Volkan is an ophthalmologist with more than 30 years of practice. He has performed over 20,000 surgeries.

He graduated from Ege University School of Medicine (1986–1992). He completed his ophthalmology specialization at Şişli Etfal Training and Research Hospital (1992–1996).

Professional memberships: TOD (Turkish Society of Ophthalmology), AAO (American Academy of Ophthalmology), ISRS (International Society of Refractive Surgery). Language: English.

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

Dr. Tasanee Sirikul is an ophthalmologist who specializes in cornea and refractive surgery. She earned her MD with Second-Class Honors from the Faculty of Medicine, Ramathibodi Hospital, Mahidol University. She fulfilled her government service as a medical fellow at Roi Et Provincial Hospital. She completed her ophthalmology residency at Ramathibodi Hospital. She also received certification in cornea and refractive surgery from the Department of Ophthalmology at Ramathibodi.

She is a Visiting Lecturer in ophthalmology (cornea and refractive surgery) at Ramathibodi Hospital, Mahidol University. She practices cornea and refractive surgery at Laser Vision International LASIK Center.

Dr. Agon Rrusta is a specialist ophthalmologist with experience in over 10,000 surgeries. He performs both anterior and posterior segment procedures. Dr. Rrusta currently works at the Italian Eye Hospital in Prishtina. He previously served at the University Clinical Center of Kosovo. He is known for his skills in LASIK, cataract, corneal, and eyelid surgeries. He also provides advanced care for diabetic retinopathy and ocular oncology.

Dr. Rrusta is an active member and presenter at several international societies, including EURETINA, ESASO, ASCRS, AAO, ESCRS, ARVO, and EuCornea. He has completed clinical observerships at Moorfields Eye Hospital as an SOE Grant Winner and at the University Clinical Center of Salzburg. He holds certifications in Trans PRK, selective laser trabeculoplasty, and wetlab phaco/glaucoma surgery.

Dr. Bujar Rizvanolli, MD, is an ophthalmologist at the Italian Eye Hospital in Pristina, Kosovo. He focuses on laser eye treatments and therapeutic procedures for different eye conditions. His main interests are keratoconus and modern refractive surgery, such as TransPRK and corneal cross-linking.

Dr. Rizvanolli earned his MD from the University of Pristina. He completed his ophthalmology training at the University Clinical Center of Sarajevo. He is known for his skill in non-invasive, laser-based vision correction and surface ablation, especially for patients with thin corneas.

He is also involved in public health education. Dr. Rizvanolli often takes part in campaigns and videos to help people learn about eye diseases and available treatments.

Experience:

1. Konya-Karapınar Kutören Health Center\ General Practitioner
2. KonyaProvincial Deputy Directorate of Health
3. KonyaProvincial Health DeputyDirectorate
4. Istanbul Fatih Tuberculosis Dispensary
5. University of Frankfurt \ Darmstadt Eye Clinic
6. Istanbul Taksim State Hospital\ Eye Diseases
7. Istanbul University Cerrahpaşa Faculty of Medicine \ Chief Assistantof the Department of Ophthalmology
8. Istanbul University Cerrahpaşa Eye Bank \ Founder (MedicalDirector)
9. TOD\ Chairman
10. Istanbul University Cerrahpaşa - Cerrahpaşa Faculty of Medicine\ First Head of the Department of Ophthalmology
11. Demiroğlu-Bilim University \ Head of Ophthalmology Department
12. Florence Nightingale Hospitals \ Eye ClinicCoordinator

Specialties:

1. Vaccinating the child age group
2. Follow-up of eye eclipse in Behçet’s disease with iris and fundus fluorescein angiography (FFA)

Priority treatments:

1. Anterior segment surgery (cataract + IOL implantation, keratoplasty)

Special advanced health technologies:

1. Arslan closed cornea technique
2. Arslan covered cornea technique
3. Retrograde glaucoma tube implantation

Leadership and Administrative Roles (Turkish Ophthalmology Association - TOD):

• Various administrative roles at TOD including:
• President of TOD IstanbulBranch (2006-2010, 2008-2010)
• General Secretary (2015-2017)
• President of TOD (2017-2019)
• Member of TOD CentralExecutive Board (2011-2013, 2013-2015)
• Member of Executive Board of the Cornea and Ocular Surface(COS) Unit of TOD (1994-2023)
• Member of Executive Board of TOD Cataract and Refractive SurgeryUnit (2016-2018)

Research and Publications:

• Authored 57 original articlesin international peer-reviewed journals
• Authored 56 articles in national peer-reviewed journals
• Presented 178 papers at national conferences and 102 papersat international conferences
• Authored 1 book and 6 book chapters
• Developed two original surgicaltechniques and the Retrograde GlaucomaTube Implantation technique
• Served on editorial boardsof various international and national journals

Memberships and Affiliations:

• Member of American Academyof Ophthalmology (AAO) and EuropeanSociety of Cataract and Refractive Surgeons (ESCRS)
• Examiner for European Board of Ophthalmology (EBO) exams representing Turkey

Awards:

• Received awards from IstanbulUniversity and TÜBİTAK

Education: