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Posterior vitreous cortex contributes to macular hole in highly myopic eyes with retinal detachment.

Abstract：

BACKGROUND:It was well known that tangential vitreoretinal traction and epiretinal membrane play important roles during the formation of macular hole (MH) associated with retinal detachment (RD) in highly myopic eyes. But it was not clear about the correlations between anteroposterior traction, posterior vitreous cortex (PVC) and MH-RD. The vitreous status in highly myopic eyes were analyzed to explore the effect of PVC in the role of MH-RD formation. METHODS:Sixteen consecutive highly myopic eyes with RD due to MH were retrospectively analyzed from January 2009 to April 2009. The preoperative examinations for detecting posterior vitreous detachment (PVD) and vitreoretinal traction included B-mode ultrasonography and optical coherence tomography (OCT). The residual PVC and PVD were confirmed intraoperatively during triamcinolone acetonide (TA) assisted vitrectomy. RESULTS:Under ultrasonography, the preoperative PVD patterns were stratified as: complete PVD in three (19%) eyes, partial PVD in eight (50%) eyes, and no PVD in five (31%) eyes. OCT confirmed vitreoretinal traction and no complete PVD in 10 (63%) eyes, including anteroposterior traction in four eyes and tangential traction in six eyes. During TA-assisted vitrectomy, it was confirmed that no complete PVD existed in 16 eyes, including six eyes (38%) finally diagnosed of partial PVD, and five (31%) eyes with vitreoschisis. Anteroposterior vitreoretinal traction around MH is always in conjunction with partial PVD (67%), and high proportion (80%) of vitreoschisis is associated with tangential vitreoretinal traction. Comparing with the precision of TA staining of PVD diagnosis, the coincidence rate of ultrasonography was 69% (P = 0.02), and that of OCT was 63% (P < 0.01). CONCLUSIONS:The residual PVC due to partial PVD or vitreoschisis may cause the anteroposterior or tangential traction of macular area, which contributes to the formation of MH and subsequent RD in highly myopic eyes. And it is necessary to realize the vitreoretinal relationship and assess the status of PVC synthetically for surgery by combined ultrasonography and OCT preoperatively and TA staining intraoperatively.

journal_name

Chin Med J (Engl)

journal_title

Chinese medical journal

authors

Liu HY,Zou HD,Liu K,Song ZY,Xu X,Sun XD

subject

Has Abstract

pub_date

2011-08-01 00:00:00

pages

2474-9

issue

16

eissn

0366-6999

issn

2542-5641

journal_volume

124

pub_type

杂志文章

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