[Parafoveal retinal telangiectasis and changes of the capillary free zone in non-diabetic patients].
Microaneurysms, hard exudates, hemorrhages and/or edema in the macular region were observed in 10 eyes of 10 non-diabetic patients. By fluorescein angiography, parafoveal retinal telangiectasis was found in all cases. Deformation, enlargement and boundary disruption of the foveolar avascular zone were discernible in most cases, as were unevenness of capillary spacing, small areas of non-perfusion and leakage of dye in some cases. Analysis and calculations of the foveolar avascular zone were done with the Model-970 Quantmet computerized image analysis system. The data showed that the values of circumference, vertical diameter and roundness of the avascular zone differed significantly from those of the 10 normal control eyes.
Zhang
C F
CF
Department of Ophthalmology, PUMC Hospital, Beijing.
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005451:Fluorescein Angiography; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008266:Macula Lutea / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D012164:Retinal Diseases / Q000473:pathology*; D013684:Telangiectasis / Q000473:pathology*