Anterior Segment · Retina Specialist Medical Staff | First Eye Center | Gangnam SMILE PRO Vision Correction

Doctors

First Eye Expert Medical Team

Making the world in each eye
more clear.

Dr. Yun Sam-young, Chief Director
Dr. Lee Seung-hoon, Chief Director

Yun Sam-young Chief Director (M.D., Ph.D.)
Leading with precise diagnosis
and innovative treatment,
Anterior Segment Specialist
Education & Career
Seoul National University College of Medicine
Resident, SNU Hospital
Fellow, Asan Medical Center, Ph.D. (Cataract, Refractive Surgery, Cornea, Contact Lens, Anterior Segment)
Professor, Hallym University Kangdong Sacred Heart Hospital
Fellowship, Harvard Medical School
Research Professor, Columbia University (2017-2018) – Keratoconus, CXL, Corneal Stabilization
5-year ESCRS Invitation (2012-2016) – Presbyopia, Cataract, Refractive Surgery, Dry Eye
3-year ESCRS Invitation Speaker – SMILE Surgery (2023-2025)
KSCRS SMILE Surgery Keynote: SMILE Pro, SILK, CLEAR (2024)
ZEISS SMILE LASIK Certified Doctor
SCHWIND SmartSight LASIK Certified Doctor
SCHWIND ATOS SmartSight Key Doctor
ZEISS CT LUCIA Certified Doctor
Paragon CRT Certified Doctor
STARR EVO ICL(TICL) Certified Doctor
STARR EVO VIVA ICL Certified Doctor
Physiol FINEVISION Certified Doctor
Physiol ISOPURE Certified Doctor
Physiol SERENITY Certified Doctor
J&J EYEHANCE Certified Doctor
J&J PURESEE Certified Doctor
J&J ODYSSEY Certified Doctor
Alcon ACRYSOF PANOPTIX Certified Doctor
Alcon CLAREON PANOPTIX Certified Doctor
Co-author, US Textbook "Studies on the Cornea and Lens" (2015)
2014 KOS Spring Meeting Excellence Award
2019 KJO Outstanding Reviewer Award
2024 ESCRS Photo/Video Contest "75th IOL Anniversary Experience"
2025 Ministry of Health & Welfare Commendation
Academic Activities
SCI Journal Reviewer
KJO Reviewer
Member: AAO, ARVO, ASCRS, ESCRS
Korean Ophthalmological Society Member
External Eye Disease Research Society Member
Korean Contact Lens Society Member
Korean Dry Eye Society Member
Former KOS Public Relations Committee
Publications
Yun SY, Kim ES, Han GS, Suh LH, Jung HS, Tchah H, Kim JY. Safety and efficacy of tacrolimus-coated silicone plates as an alternative to mitomycin C in a rabbit model of conjunctival fibrosis. PLoS One. 2019 Jul 5;14(7):e0219194.
Kim EC, Doh SH, Chung SY, Yun SY, Kim MS, Chung SK, Shin MC, Hwang HS. Direct visualization of aqueous tear secretion from lacrimal gland. Acta Ophthalmol. 2017 Jun;95(4):e314-e322.
Song WS, Park SP, Yun SY. One Step Operation of the Persistent Pupillary Membrane Removal and Cataract Operation: A Case Report. Korean J Ophthalmol. 2017 Jun;58(6):731-735.
Kim EC, Doh SH, Chung SY, Yun SY, Kim MS, Chung SK, Shin MC, Hwang HS. Direct visualization of aqueous tear secretion from lacrimal gland. Acta Ophthalmol. 2016 Nov 23.
Song IS, Yun SY, Kim JY, Kim MJ, Tchah H. Influence of Near-Segment Positioning in a Rotationally Asymmetric Multifocal Intraocular Lens. J Refract Surg. 2016 Apr;32(4):238-43.
Lee JH, Song IS, Kim KL, Yun SY. Effectiveness and Optical Quality of Topical 3.0% Diquafosol versus 0.05% Cyclosporine A in Dry Eye Patients following Cataract Surgery. J Ophthalmol. 2016;2016:8150757.
Yun SY, Bae SH, Shin YJ, Park SG, Hwang SH, Hyon JY, Wee WR. Low Serum 25-Hydroxyvitamin D Levels Are Associated with Dry Eye Syndrome. PLoS One. 2016 Jan 25;11(1):e0147847.
Song IS, Park JH, Park JH, Yun SY, Kim JY, Kim MJ, Tchah H. Corneal coma and trefoil changes associated with incision location in cataract surgery. J Cataract Refract Surg. 2015 Oct;41(10):2145-51.
Yoo A, Yun S, Kim JY, Kim MJ, Tchah H. Femtosecond Laser-assisted Arcuate Keratotomy Versus Toric IOL Implantation for Correcting Astigmatism. J Refract Surg. 2015 Sep;31(9):574-8.
Song IS, Kim MJ, Yun SY, Kim JY, Tchah H. Higher-Order Aberrations Associated With Better Near Visual Acuity in Eyes With Aspheric Monofocal IOLs. J Refract Surg. 2014 Jul;30(7):442-6.
Yun SY, Song IS, Kim JY, Kim MJ, Tchah H. Bilateral mix-and-match versus unilateral multifocal intraocular lens implantation: Long-term comparison. J Cataract Refract Surg. 2013 Nov;39(11).
Yun SY, Kim JY, Kim ES, Kim SY, Kim MJ, Tchah H. Subconjunctival injection of low-molecular-weight heparin-taurocholate 7 inhibits corneal neovascularization. Cornea. 2013 Nov;32(11):1488-92.
Yang SJ, Yun SY, Kim JG, Yun YH. Transconjunctival sutureless vitrectomy for the treatment of vitreoretinal complications in patients with diabetes mellitus. Ophthalmic Surg Lasers Imaging. 2009 Sep-Oct;40(5):461-6.
Chung H, Yun SY, Kim JG, Yun YH. Central retinal vein occlusion after liver transplantation. Acta Ophthalmol. 2009 Aug;87(5):572-4. Epub 2008 Jun 28.
Kim DY, Kim MJ, Yun SY, Shin CJ, Kim KH, Tchah H. Late-onset Hypertrophic Corneal Scars After Laser-assisted Subepithelial Keratectomy With Mitomycin C. J Korean Ophthalmol Soc 2009 Feb 50(2): 308-312.
Lee J, Lee CH, Choi J, Yun SY, Sung KR, Park SB, Kook MS. Comparison between dynamic contour tonometry and Goldmann applanation tonometry. Korean J Ophthalmol. 2009 Mar;23(1):27-31.
Yun SY, Choi J, Lee CH, Seong M, Sung KR, Kook MS. Evaluation of Glaucomatous Damage in the Fellow Eyes of Patients With Unilateral Retinal Vein Occlusion. J Korean Ophthalmol Soc 2009 Jan 50(1): 120-127.
Lee Seung-hoon Chief Director (M.S.)
Protecting eye health with
careful diagnosis
and principled care, Retina Specialist
Education & Career
Catholic University Pre-med
M.S. in Ophthalmology, Catholic University
Ph.D. Candidate, Catholic University
Resident, Yeouido St. Mary's Hospital
Clinical Instructor, Yeouido St. Mary's Hospital
Clinical Assistant Professor & Specialist, Bucheon St. Mary's Hospital
Adjunct Professor, Catholic University
ZEISS CT LUCIA Certified Doctor
Paragon CRT Certified Doctor
J&J EYEHANCE Certified Doctor
J&J PURESEE Certified Doctor
J&J ODYSSEY Certified Doctor
Physiol ISOPURE Certified Doctor
Physiol SERENITY Certified Doctor
Academic Activities
Korean Ophthalmological Society Member
Korean Retina Society Member
Korean Uveitis Society Member
Korean Optometric Society Member
Korean Society of Cataract & Refractive Surgery Member
ASCRS Member
ARVO Member
AAO Member
Publications
1. Comparison of Intraocular Pressures Measured by the Corvis ST and Other Tonometers in Normal Eyes. J Korean Ophthalmol Soc. 2019;60(12):1250-1256.
2. Comparison of Optical Coherence Tomography Findings and Histological Findings of Meibomian Gland in Rats. J Korean Ophthalmol Soc. 2020;61(8):849-854.
3. Spontaneous Resolution of Cataract-related Acute Vitreomacular Traction Syndrome. J Korean Ophthalmol Soc. 2020;61(8):960-964.
4. Metabolic Health, Obesity, and the Risk of Developing Open-Angle Glaucoma: Metabolically Healthy Obese Patients versus Metabolically Unhealthy but Normal Weight Patients. Diabetes Metab J. 2020 Jun;44(3):414-425.
5. The Effect of Selective Retina Therapy with Automatic Real-Time Feedback-Controlled Dosimetry for Chronic Central Serous Chorioretinopathy: A Randomized, Open-Label, Controlled Clinical Trial. J Clin Med. 2021 Sep 22;10(19):4295.
6. Factors Predicting Response to Selective Retina Therapy in Patients with Chronic Central Serous Chorioretinopathy. J Clin Med. 2022 Jan 10;11(2):323.
7. Choroidal Morphology on Ultra-Widefield Indocyanine Green Angiography and Response to Aflibercept in Pachychoroid Neovasculopathy. Pharmaceuticals (Basel). 2023 Jan 3;16(1):73.
8. A Case of Green Laser Pointer-induced Atypical Impending Macular Hole Treated with Vitrectomy in a Pediatric Patient. Ann Optom Contact Lens. 2023;22(3):109-113.
9. The effect of nondamaging subthreshold laser therapy in patients with chronic central serous chorioretinopathy. Graefes Arch Clin Exp Ophthalmol. 2024 May;262(5):1433-1442.
10. The Correlation between MMP-9 Point-of-Care Assay and Clinical Symptoms and Signs of Dry Eye Disease. Ann Optom Contact Lens. 2024;23(2):58-63.
11. Effects of Autologous Platelet Concentrate Injection on Persistent Macular Hole. J Korean Ophthalmol Soc. 2024;65(11):716-723.