A CASE-CONTROL STUDY OF RISK-FACTORS FOR PROLIFERATIVE VITREORETINOPATHY IN APHAKIA

A case-control study was performed to elucidate the risk factors of pr oliferative vitreoretinopathy (PVR) in aphakia. Twenty-five aphakic ey es with rhegmatogenous retinal detachment accompanied by PVR were comp ared with the control group of 156 aphakic eyes with rhegmatogenous re tinal detachment without PVR. Unconditional logistic regression analys is identified the following risk factors for developing PVR in order o f significance: choroidal detachment (odds ratio 15.41, 95% confidence interval 3.29-72.09), duration of retinal detachment longer than one month (odds ratio 12.07, 95% confidence interval 3.53-41.26), occurren ce of retinal detachment within one year following cataract surgery (o dds ratio 6.2, 95% confidence interval 1.64-23.47), and history of vit reous loss in cataract surgery (odds ratio 3.91, 95% confidence interv al 1.28-11.92).