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  • Title: The predisposing pathology and clinical characteristics in the Scottish retinal detachment study.
    Author: Mitry D, Singh J, Yorston D, Siddiqui MA, Wright A, Fleck BW, Campbell H, Charteris DG.
    Journal: Ophthalmology; 2011 Jul; 118(7):1429-34. PubMed ID: 21561662.
    Abstract:
    PURPOSE: To describe the predisposing pathology and clinical features of all incident cases of rhegmatogenous retinal detachment (RRD) recruited in Scotland during a 2-year period. DESIGN: Prospective surveillance study of incident cases of RRD. PARTICIPANTS: All incident cases of RRD recruited as part of the Scottish Retinal Detachment Study. METHODS: During a 2-year period, we coordinated a comprehensive system in which every case of primary RRD presenting to 1 of 6 vitreoretinal surgical sites in Scotland was examined and approached for study inclusion. MAIN OUTCOME MEASURES: Rhegmatogenous retinal detachment incidence, predisposing features, and clinical characteristics. RESULTS: A total of 1202 cases were recruited. Detailed clinical information was available on 1130 (94%) of cases. By causative break, the proportions of RRD were horseshoe tear (HST) associated with posterior vitreous detachment (PVD) in 86.2%, giant retinal tear (GRT) and PVD in 1.3%, non-PVD round hole (RH) in 4.9%, retinal dialysis in 5.9%, and retinoschisis RRD in 1.6%. One in 10 cases reported significant ocular trauma. One in 5 cases were pseudophakic. Round hole RRD more frequently presented with multiple retinal breaks compared with HST RRD (67.8% vs. 48.7%; P = 0.003). In PVD-associated RRD, 56.1% (95% confidence interval [CI], 53.8-58.3) of breaks were identified in the superotemporal retina. In non-PVD RRD, 54.6% (95% CI, 47.9-61.1) of breaks were inferotemporal, followed by superotemporal in 34.9% (95% CI, 28.7-41.5). Lattice degeneration was present in 18.7% of affected eyes and more common in RH RRD (35.7%) than in HST RRD (19.3%) (P = 0.003). Seven percent reported an affected first-degree relative, and these cases were significantly more myopic than nonfamilial cases. CONCLUSIONS: More than 85% of RRD cases are associated with PVD and related tractional tears. Non-PVD RH RRD occurred in younger and more myopic individuals. The majority of cases are caused by more than 1 retinal break, and the macula is affected in more than 50% at presentation. Ocular trauma, previous cataract surgery, family history, and lattice degeneration are important predisposing features.
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