Visual field loss after argon laser panretinal photocoagulation in diabetic retinopathy: full- versus mild-scatter coagulation.
OBJECTIVE
The aim of the present study was to prospectively examine the effect of two styles of PRP, full- and mild-scatter on central and peripheral visual field in diabetic patients.


METHODS
40 eyes with preproliferative or early proliferative diabetic retinopathy of 32 patients underwent visual field testing on the C 30-1 and P 30/60-1 program of the Humphrey field analyser before and after argon laser panretinal photocoagulation (PRP). 21 eyes received full- and 19 mild-scatter PRP.


RESULTS
Laser treatment had caused significant reduction of central retinal sensitivity in all eyes with no difference between full- and mild-scatter PRP. Peripheral visual field sensitivity was significantly improved after mild-scatter PRP and was significantly depressed after full-scatter PRP.


CONCLUSIONS
Our results suggest, that two treatment produced essentially equal effects on central and different on peripheral visual field.
Pahor
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Department of Ophthalmology, Teaching Hospital Maribor, Slovenia.
D000328:Adult; D000368:Aged; D003930:Diabetic Retinopathy / Q000150:complications* / Q000503:physiopathology / Q000601:surgery*; D005260:Female; D006801:Humans; D017075:Laser Coagulation / Q000379:methods; D008297:Male; D008875:Middle Aged; D011184:Postoperative Period; D011446:Prospective Studies; D012160:Retina / Q000528:radiation effects; D014786:Vision Disorders / Q000209:etiology* / Q000503:physiopathology; D014794:Visual Fields