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Use of the contrast sensibility in the diagnosis of diabetic retinopathy and diabetic macular edema
Author(s) -
IBANEZ J,
VALYI Z,
PEREZ GARCIA D,
PEIRO C,
CRISTOBAL JA,
FAURE E,
SAINZ A
Publication year - 2009
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2009.452.x
Subject(s) - diabetic retinopathy , medicine , diabetic macular edema , ophthalmology , contrast (vision) , macular edema , sensibility , retinopathy , diabetes mellitus , retinal , endocrinology , optics , art , physics , literature
Purpose To determine the validity of the contrast sensibility, in the diagnosis of the diabetic retinopathy and macular diabetic edema. Methods Cross ‐sectional observational study consisting of 628 eyes of patients with diabetic retinopathy, being realized the curve of contrast sensibility using the test CSV‐1000E. There were studied 4 spatial frequencies (3,6,12,16 cycles / second). The results were analyzed for each of the frequencies, corrected by the age, degree of diabetic retinopathy and thickness macular. Results In patients with retinopatía diabetic sensibilities of 4 were obtained (3 ciclos/seg) 2 (6 ciclos/seg) and 1,5 (12 and 18 ciclos/seg) .La average decrease of the curve corrected by the age was 30 %, 37 %, 42 % and 45 % for each of the analyzed frequencies. The patients with thicknesses macular top to 400 microns experimented decreases superior to 50 % of the curve of sensibility. Conclusion We find a widespread reduction of the curve of sensibility to the contrast, in patients with diabetic retinopathy and diabetic macular edema. The high frequencies were more prematurely affected, being able to serve in proof of screening, since the functional damage in these frequencies might precede the structural anomaly.