J Korean Ophthalmol Soc > Volume 59(4); 2018 > Article
Journal of the Korean Ophthalmological Society 2018;59(4):347-354.
DOI: https://doi.org/10.3341/jkos.2018.59.4.347    Published online April 15, 2018.
The Correlation between Preoperative En Face Optical Coherence Tomography and Postoperative Visual Prognoses in Idiopathic Epiretinal Membranes.
Sung Hyun Ahn, Tae Eun Lee, In Cheon You, Min Ahn, Nam Chun Cho, Jin Gu Jeong
1Department of Ophthalmology, Chonbuk National University Medical School, Jeonju, Korea. terathan@naver.com
2Research Institute of Clinical Medicine, Chonbuk National University, Jeonju, Korea.
3Biomedical Research Institute, Chonbuk National University Hospital, Jeonju, Korea.
특발망막앞막에서 수술 전 정면빛간섭단층촬영 영상과 수술 후 시력 호전과의 관계
안성현1⋅이태은1,2,3⋅유인천1,2,3⋅안 민1,2,3⋅조남천1,2,3⋅정진구1,2,3
전북대학교 의학전문대학원 안과학교실1, 전북대학교 임상의학연구소2, 전북대학교병원 의생명연구원3
Correspondence:  Jin Gu Jeong,
Email: terathan@naver.com
Received: 21 September 2017   • Revised: 17 January 2018   • Accepted: 29 March 2018
To investigate the correlation between en face optical coherence tomography and improvements in the postoperative prognoses of idiopathic epiretinal membranes. METHODS: The medical records of 59 epiretinal membrane patients who had epiretinal membrane peeling between January 2005 and January 2016, and were followed up for > 12 months, were retrospectively reviewed. The preoperative en face images were divided into four sections involving three circular areas (6,000 µm diameter circle, 3,000 µm diameter circle, and 1,000 µm diameter circle) and one square (6,000 × 6,000 µm). The surface area where no epiretinal adhesion was present was quantified by measuring the number of black pixels using image-editing software (Adobe Photoshop CS6, Adobe Systems, San Jose, CA, USA). Then the correlations among the value of black pixels, preoperative and postoperative visual acuities, and central retinal thickness were analyzed. RESULTS: The best-corrected visual acuity (BCVA) was significantly increased after epiretinal membrane peeling (p < 0.001), and the central retinal thickness was significantly decreased (p < 0.001). As the number of black pixels in the circles and the square in the en-face images increased, the postoperative BCVA significantly increased (r = 0.645, p < 0.001; r = 0.590, p < 0.001, respectively). CONCLUSIONS: As the nonadhesive surfaces of the epiretinal membrane and the retina in preoperative en face images became wider, the increments of the BCVA after surgery were greater. Therefore, en face optical coherence tomography can be used to predict prognosis after epiretinal membrane peeling.
Key Words: En face image;Epiretinal membrane;Optical coherence tomography

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