Comparative study of incomplete posterior vitreous detachment as a risk factor for proliferative vitreoretinopathy |
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Authors: | C Capeans José Lorenzo Luis Santos Andrés Suarez María J Copena María J Blanco Manuel Sánchez-Salorio |
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Institution: | (1) Retina Unit, Department of Ophthalmology, University Hospital of Santiago de Compostela, C/Galeras s/n, E-15705 Santiago de Compostela, Spain, ES |
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Abstract: | · Background: Abnormal vitreoretinal relationships have recently been implicated in many vitreoretinal disorders. Sites of
abnormal vitreoretinal adherences are likely to exist in eyes predisposed to rhegmatogenous retinal detachment (RD), causing
either retinal tears or incomplete posterior vitreous detachment (PVD). The present study was designed in two parts to identify
the risk for preoperative and postoperative proliferative vitreoretinopathy (PVR) due to incomplete PVD. · Methods: We prospectively
evaluated the vitreoretinal relationships using high-resolution kinetic echography in 102 consecutive eyes of 100 patients
with rhegmatogenous RD. In the first part, a case-control study was conducted to compare the vitreous status in patients with
preoperative PVR (cases) with that in patients with non-PVR-complicated RD (controls). During the second part, patients with
noncomplicated RD (65 eyes) who were operated on by a simple retinal attachment procedure were followed up for a mean period
of 6.6 months to compare the recurrence of RD due to postoperative PVR according to their vitreous status. · Results: Patients
with PVR on study entry had a higher prevalence of partial PVD (28 of 32 eyes, 87%) than did controls (25 of 70 eyes, 35%).
The statistical significance of this difference was independent of all other variables studied. After a mean follow-up period
of 6.6 months, the incidence of recurrence of RD associated with postoperative PVR was 33% in the eyes with incomplete PVD,
compared with 4.9% in the eyes without incomplete PVD. · Conclusions: Our results support the notion that the occurrence of
incomplete PVD in RD is a significant risk factor for preoperative and postoperative PVR.
Received: 18 June 1997 Revised version received: 9 October 1997 Accepted: 15 October 1997 |
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