Razo BHDM, Cruz DAS, Lima GV

Language: Spanish
References: 17
Page: 71-75
PDF size: 109.78 Kb.

ABSTRACT

Background: Although some diabetics with macular edema lose vision during the first six weeks after focal photocoagulation, others have no visual changes or improve their visual function. There is the perception that photocoagulation causes visual loss, but the visual modifications that appear during the first weeks of treatment could be attributed to induced inflammation and have not been clearly characterized. Methods: An observational, descriptive, retrospective, and open study was conducted. Visual capacity measured before and after three weeks of photocoagulation was evaluated in patients with diabetic retinopathy. Patient’s age ranged form 40 to 80, and they were treated at our Ophthalmology Service between January 2006 and December 2007. The proportion and 95% confidence intervals were calculated for visual impairment, significant visual impairment, visual improvement and significant visual improvement. Results: 79 eyes (56 patients), mean age 60.2 ± 8.4 years 57.1% females. Twenty six eyes had visual impairment after treatment (32.9%, 95% C.I. 22.5-43.3), 32 improved their visual capacity (40.5%, 95% C.I. 29.7-51.3) and 21 did not change their visual function (26.6%, 95% C.I. 16.8-36.4); visual impairment was significant in 7 eyes (8.9%, 95% C.I. 2.6-15.2) and visual improvement in 10 (12.7%, 95% C.I. 5.4-20). Conclusions: Photocoagulation did not modify visual capacity significantly in most of the treated eyes. The proportion of significant visual impairment was lower than that previously reported at 6 months.

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