Objective-To determine whether non-mydriatic Polaroid retinal photography was comparable to ophthalmoscopy with mydriasis in routine clinic screening for early, treatable diabetic retinopathy.Design (X2=8-0; p<0-01). Camera screening underestimated numbers of microaneurysms (x2= 12-9; p<0 001) and haemorrhages (X2=7-4; p<001) and ophthalmoscopy underestimated hard exudates (X2=48-2; p
In Newcastle district, where the retinal screening programme has been running since 1986, the rates of blindness and partial sightedness are less than one-third of those reported in the surveys prior to 1997, confirming that objectives of the St Vincent's declarations are being achieved.
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