PURPOSE: We examined electron microscopically the tissues removed from the retinal surface in cases with @entity937 . MATERIALS AND METHODS: We performed vitrectomy for @entity937 in 43 eyes from June 1994 to December 1998 at Fukuoka University Chikushi Hospital. The removed tissues were evaluated with transmission electron @entity3178 in only 8 of the 43 eyes. All cases underwent 3 port vitrectomy. After occurrence of @entity20699 , epiretinal tissues were removed around the macular hole using a micro-hook needle. RESULTS: All tissues were transparent under an operating @entity3178 , and they curled naturally. Histopathological examination showed that the removed tissues were from 2 to 6.5 microns thick. All tissues were composed mainly of extracellular matrix. There were type 2 collagen fibers in 6 eyes and basement membrane-like structures in 2 eyes. There were few cell components. All cases had the macular hole closed by the first surgery. Four eyes had improved visual acuities of more than 2 lines. The remaining 4 eyes had the same visual acuity as before the operation. CONCLUSION: Residual vitreous on the retinal surface was the main component of the transparent tissues removed from the retinal surface during vitrectomy.

[Histopathological examination of tissues removed from the retinal surface during vitrectomy in XXXX ].

@entity3178 :: ('MESH:D046728', 'Disease') :: ['microscope'] @entity937 :: ('MESH:D012167', 'Disease') :: ['idiopathic macular holes'] @entity20699 :: ('MESH:D020255', 'Disease') :: ['posterior vitreous detachment']
@entity937 :: (MESH:D012167,Disease) :: ['idiopathic macular holes']
