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Outcome of iatrogenic choroidal neovascularisation in sickle cell disease.
  1. P D Fox,
  2. R W Acheson and
  3. G R Serjeant
  1. Medical Research Council Laboratories, University of the West Indies, Mona, Kingston, Jamaica.

    Abstract

    Choroidal neovascularisation developed in 62/66 (94%) eyes followed up for a mean period of 11.2 years after treatment with xenon arc feeder vessel coagulation for proliferative sickle retinopathy (PSR). In 27 eyes the neovascularisation was chorioretinal alone and in 35 eyes choriovitreal. Chorioretinal neovascularisation (CRN) was a benign complication but may convert to choriovitreal neovascularisation (CVN). Late sequelae of CVN included vitreous haemorrhage, posterior vitreous face fibrosis, and tractional retinal detachment. Visual loss (of greater than or equal to 3 Snellen lines for greater than or equal to 3 months) occurred in nine eyes affected by choroidal neovascularisation, though because of other pathology this could not always be attributed to the choroidal neovascularisation. The incidence of visual loss in CVN affected eyes was significantly greater, by survival curve analysis, than in eyes affected by CRN alone. Permanent visual loss from tractional retinal detachment definitely attributable to CVN occurred in 2/35 (6%) eyes.

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