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SE YOUNG KIM, Hee Seung Chin, Myung Hun Yoon; Clinical characteristics of the lamellar macular hole according to subtypes.. Invest. Ophthalmol. Vis. Sci. 2018;59(9):3137.
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© ARVO (1962-2015); The Authors (2016-present)
To compare anatomical and clinical characteristics according to two subtypes of lamellar macular hole (LMH) by morphologic findings.
A retrospective clinical charts review of patient diagnosed with lamellar macular hole was performed. Total 51 eyes of 45 patients were divided into 2 subgroups according to morphologic characteristics using spectral-domain optical coherence tomography (OCT) images.
LMH was classified two different subtypes; tractional type (28 eyes, 54.9%), degenerativetype (23 eyes, 45.1%). At baseline, degenerative LMH was characterized by mean retinal thickness of 334.98μm, while in tractional LMH this value was 332.72μm. Mean central foveal thickness did not change significantly over the follow up period in both groups. Mean BCVA at baseline was not significantly different between both types (tractional type = 0.127, degenerative type = 0.132 by log MAR, P=0.42). Maximum intraretinal diameter (MID) and maximum outer retinal diameter (MOD) at baseline were significantly different between both types (tractional type MID / MOD = 373μm / 1601μm, degenerative type MID / MOD = 532μm / 754μm, P <0.05 / P <0.05)). Mean follow up period before surgery was significantly longer in degenerative type (degenerative type = 14.3 months, tractional type = 6.7 months, P = 0.008). Receiving operation rate each subtype were 30.4% (degenerative type) and 52.7% (tractional type). Mean BCVA, mean retinal thickness, maximum intraretinal diameter, maximum outer retinal diameter were not significantly changed over the follow up period in both groups.
LMH could be classified degenerative and tractional types according to morphologic characteristics. Each type of LMH has not only different anatomical characteristics but also clinical features. We should consider LMH subtypes when decide treatment strategy.
This is an abstract that was submitted for the 2018 ARVO Annual Meeting, held in Honolulu, Hawaii, April 29 - May 3, 2018.
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