Abstract
To determine the validity of laser photocoagulation as a prophylactic treatment in the prevention of rhegmatogenous retinal detachment (RRD) in a group of paediatric patients presenting with chorioretinal coloboma. Observational case series of consecutive patients aged 0-15 years with chorioretinal coloboma seen in a tertiary eye hospital were reviewed. Data were analysed with SPSS version 16, a P-value of <0.05 was considered significant. One hundred and ninety-eight patients (335 eyes) were identified. The prevalence of retinal detachment and ocular anomalies was 17.6 and 87.2%, respectively. Ocular anomalies included iris coloboma (71%), microcornea (45.1%), nystagmus (41.5%), strabismus (21.2%), and microphthalmos (19.1%). The prevalence of retinal detachment was 2.9% in those eyes that received prophylactic laser photocoagulation, whereas the risk of retinal detachment was 24.1% in eyes left untreated. Post-operative complications following retinal detachment surgery occurred in 86.7% eyes; the most frequent being recurrent retinal detachment (53.8%). The mean duration of follow-up was 1.59 ± 0.21 years (0-7 years) and 0.79 ± 0.16 years (0-8 years) in the group that had laser and in those that were treatment naive, respectively. Prophylactic laser treatment appears to have a protective effect for the prevention of RRD in eyes with chorioretinal coloboma. Measures towards prophylactic therapy should be instituted to reduce the risk of retinal detachment in choroid colobomatous eyes due to the problems in the management of these retinal detachments.
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