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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

Dr. Zeynep Alkin is a Professor of Ophthalmology. She specializes in medical retina and vitreoretinal surgery. She earned her medical degree at Istanbul University. She completed her residency at Beyoglu Eye Training and Research Hospital. Dr. Alkin later served as an Assistant Professor and Clinical Fellow in retina departments. She also completed a research fellowship at Doheny Eye Institute, USC. She is a member of the Turkish Ophthalmological Society and its Medical and Surgical Retina Boards.

Dr. Alkin has given over 40 presentations at national and international meetings. She has authored more than 40 peer-reviewed publications. Her main interests are retinal diseases, diabetic macular edema, and age-related macular degeneration. Her research includes multicenter studies and real-world data analyses. Dr. Alkin’s work supports evidence-based practice in ophthalmology.

Place and Date of Birth

• Malazgirt, 1955

Language Skills

• English

Education and Experience

• Hacettepe University, Faculty of Medicine 1972-1979
• Hacettepe University, Department of Ophthalmology 1980-1983
• Balıkesir 200-Bed Military Hospital 1983-1984
• Istanbul Şişli Etfal Hospital 1984-1987
• Akdeniz University, Faculty of Medicine, Department of Ophthalmology 1988-2022

Number of Scientific Publications

• International publications:32
• National publications:64
• International papers:30
• National papers:91
•  

Case Experience

• 40 years of active practice as an ophthalmologist

Membership

• Turkish Medical Association
• Turkish Ophthalmology Association
• IOIS
• EURETINA

Certificates

• Deutsch Als Fremdsprache Language Certificate 1979
• Interuniversity Board Foreign Language Achievement Certificate 1986
• StAntony's School of English Language Certificate 1988
• ÖSYM Foreign Language Achievement Certificate 1992
• Interuniversity Board Associate Professor Achievement Certificate 1993
• The New York Academy of Science Active Member Certificate 1994
• Akdeniz University Total Quality Management in Hospital Management Certificate 1997
• Turkish Ophthalmology Proficiency Certificate 2003 and 2011

Dr. Peykan Türkçüoğlu is a professor of ophthalmology. He graduated from Hacettepe University School of Medicine in Turkey. He has served in academic and clinical roles at top institutions. He worked as an assistant and associate professor at Fırat and İnönü Universities.

He completed a fellowship at Johns Hopkins Hospital, Wilmer Eye Institute. There, he specialized in vitreoretinal and medical retinal diseases. Dr. Türkçüoğlu has advanced retinal care and now practices at Veni Vidi Göz Eye Hospital. He is known for his academic work, international training, and leadership in eye surgery and research.

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. Tuğrul Akın is an experienced ophthalmologist. He graduated from Ankara University School of Medicine. He completed his specialist training at Gülhane Military Medical Academy in Turkey. He is a member of the Turkish Ophthalmological Association and the Turkish Medical Association. He is committed to professional growth and ongoing medical education.

Dr. Akın has made important contributions to ophthalmology. He focuses on advanced diagnostics and new treatment methods. His clinical practice is known for high patient satisfaction and compliance with international standards. Dr. Akın is recognized as a respected expert in Turkish ophthalmology.

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

Uğur Tunç, M.D.

Ophthalmology

Areas of Expertise and Interest

• Cataract Surgery
• Corneal Diseases & Refractive Surgery
• Ocular Surface Disorders
• Retinal Diseases

Education

• Uludağ University, Faculty of Medicine – M.D., 2016
• Istanbul Beyoğlu Eye Training and Research Hospital – Ophthalmology Residency, 2021
   

Career

• 2024–Present: Assistant Professor, Istanbul Medipol University; Ophthalmologist, Medipol Acıbadem Bölge Hospital
• 2023–2024: Research Fellow, Wilmer Eye Institute, Johns Hopkins University (Cornea & External Disease)
• 2021–2023: Specialist Ophthalmologist, Eyüpsultan State Hospital

Publications (Selected)

• Tunç U, et al. Corneal bacterial microbiome in keratoconus patients. Ocul Surf. 2023.
• Tunç U, et al. Comparison of dexamethasone implants in diabetic macular edema. Int Ophthalmol. 2022.
  Tunç U, et al. Corneal bacterial microbiome in keratoconus patients. Ocul Surf. 2023.
• Tunç U, et al. Comparison of dexamethasone implants in diabetic macular edema. Int Ophthalmol. 2022.
• Tunç U, et al. Topical anesthesia in phacoemulsification surgery: a randomized study. Eur J Ophthalmol. 2021.
• Tunç U, et al. Analysis of corneal ectasia progression after cross-linking. Turk J Ophthalmol. 2020.
• Tunç U, et al. Macular edema management outcomes: real-life data. Turk J Ophthalmol. 2020.
  (Total: 18 peer-reviewed publications, 11 international, 7 national)
• Tunç U, et al. Topical anesthesia in phacoemulsification surgery: a randomized study. Eur J Ophthalmol. 2021.

Conferences & Scientific Activity

• Presenter, European Society of Cataract and Refractive Surgeons (ESCRS) Congress
• Presenter, World Ophthalmology Congress
• Presenter, Turkish Ophthalmological Society (TOD) Annual Congresses
• Panelist & instructor in corneal and refractive surgery training courses

Awards

• 2nd Prize, Best Oral Presentation – AI in Health Congress, 2020
• Travel Grant – ESCRS Milan, 2022
• Young Ophthalmologist Science Award – Turkish Ophthalmological Society, 2022

Memberships

• Turkish Ophthalmological Society (TOD)
• Turkish Medical Association
• European Society of Cataract and Refractive Surgeons (ESCRS)
• American Academy of Ophthalmology (AAO)

Education and Expertise

2005 – Akdeniz University, Faculty of Medicine, Medical Education

2011 – Istanbul Göztepe Training and Research Hospital, Ophthalmology Specialization

Specialization Thesis: Our Grid Laser Results in the Treatment of Diabetic Macular Edema

Experience

Erzincan State Hospital

Mengücek Gazi Training and Research Hospital

Gebze Fatih State Hospital

Tuzla State Hospital

Courses and Certificates

56th TOD National Congress

ESCRS (The European Society of Cataract and Refractive Surgeons)

7th TOD Live Surgery Symposium

Cataract and Refractive Surgery Skills Transfer Course

Cataract and Refractive Surgery Live Applications

Professional Memberships

-Turkish Ophthalmology Association

-Turkish Medical Association, Istanbul Chamber

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

Education & Expertise

1988 | Istanbul University Faculty of Medicine

1992 | Beyoğlu Eye Training and Research Hospital – Specialization in Ophthalmology

1996 | Moscow University Eye Institute – Refractive Surgery

1998 | Miami Bascom-Palmer Eye Institute (Florida, USA) – Phaco Surgery

Current - VM MedicalPark Pendik Hospital Ophtalmology Department

Professional Memberships

Turkish Medical Association

Turkish Ophthalmology Association

Dr. Yucel Ozturk is a member of the Turkish Ophthalmology Association. He has performed over 30,000 surgeries and authored 20 national and international publications.

He earned his medical degree at Ondokuz Mayıs University Faculty of Medicine (2004–2011). He trained at Dr. Lütfi Kırdar Kartal Education and Research Hospital (2012–2016). He then worked at Haydarpaşa Numune Education and Research Hospital (2016–2022).

Language: English.

Place and Date of Birth

• Nevşehir, 1974

Language Skills

• English

Education and Experience

• 1997 Cerrahpaşa Faculty of Medicine
• 2003 Ege University Faculty of Medicine Eye Diseases
• 2005 GATA Ankara (Military Service)
• 2018 İstanbul Training and Research Hospital (Assoc.)

National and International Publication number

• Over 50

Case Experience

• More than 20,000 surgical cases experience, 20 years of active service as an ophthalmologist

Associations

• TOD (Turkish Society of Ophthalmology)
• AAO (American Academy of Ophthalmology)

Dr. Kadir Colakoglu is an experienced ophthalmologist with 19 years in the field. He specializes in cataract surgery, corneal refractive surgery, refractive lens surgery, strabismus, oculoplastic surgery, medical retina, and glaucoma.

He has performed many advanced procedures, such as cataract surgery with IOL replacement, LASIK, vitrectomy, and Botox injections. Dr. Colakoglu holds several certificates and accreditations in ophthalmology and is known for his clinical skills.

He is a member of the Turkish Medical Association, Turkish Ophthalmology Association, and Conscious Hypnosis Association. His memberships show his dedication to ongoing learning and quality patient care.

Curriculum Vitae

Place and Date of Birth

• Manisa, 1965

Language Skills

• English

Education and Experience

• Uludağ University, School of Medicine
• Dr. Lütfi Kırdar Kartal Training and Research Hospital (Specialization Training)

Number of scientific publications and articles

• 201

Case Experience

• Experience with more than 55,000 surgical cases during 32 years of active service as an ophthalmologist.

Memberships

• American Academy of Ophthalmology
• European Society of Ophthalmic Plastic and Reconstructive Surgery
• Turkish Society of Ophthalmology
• Turkish Republics Ophthalmology Society
• Turkish Medical Association
• Society of Fenerbahçe Fans

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.