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There has been recent interest in the progression of diabetic retinopathy following extracapsular cataract extraction (ECCE) especially with vitreous loss. It is well known that diabetic retinopathy progresses after intracapsular cataract extraction (ICCE) but was thought to be less common after ECCE. We present 7 patients with symmetrical non-proliferative diabetic retinopathy who underwent ECCE with intraocular lens (IOL) implantation. These patients ranged in age from 56 to 69 years; 2 were insulin-dependent diabetics (IDDM) and 5 non-IDDMs. Rubeosis iridis developed quickly between post-operative outpatient visits despite good diabetic control and a static retinal picture in the fellow eye. Visual loss following the onset of rubeosis was severe, with 3 patients needing cyclocryotherapy and eventually having no perception of light. The rapid onset of rubeosis between post-operative outpatient visits leads us to suggest much shorter periods between reviews than is current practice and the consideration of routine panretinal photocoagulation in the immediate post-operative period in diabetics with worsening retinopathy after ECCE and IOL. Possible causes of the increase in neovascularisation and rubeosis are discussed. The most important message highlighted by these case histories is that the surgery and follow-up of diabetic patients undergoing surgery should be undertaken by an ophthalmologist with an interest in diabetes. Where there is no recognised diabetic retinal specialist in a unit, then early referral to such an ophthalmologist is recommended when complications arise.

Progression of diabetic retinopathy and rubeotic glaucoma following cataract surgery