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Utility of retinal photography in the diagnosis of diabetic macular edema
Author(s) -
IBANEZ J,
MATEO OROBIA AJ,
PEIRO C,
PEREZ D,
VALYI S,
ROJO M,
SAINZ A,
CRISTOBAL JA
Publication year - 2008
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.1755-3768.2008.612.x
Subject(s) - stereoscopy , medicine , ophthalmology , photography , macular edema , optometry , sensibility , diabetic retinopathy , diabetic macular edema , optical coherence tomography , retinal , computer vision , computer science , diabetes mellitus , art , visual arts , literature , endocrinology
Purpose To determine the validity of the simple photography and stereo photography in the diagnosis of diabetic macular edema. Methods Photographies were realized of 427 eyes of diabetic patients, previously dilated with tropicamide eye drops. The color and green filtered 45º and 30º photographies were centered on the posterior pole. Considering the difficulty of the detection of retinal thickenning on a flat photo, we decided to realize two photos to achieve stereopsis. This permits an easier perception of retinal thickening. Sensibility and specificity were compared of the photos to determine the validity in the diagnosis of diabetic macular edema. We used the optical coherence tomography (OCT) as the gold standard test. Results We obtained approximately an 80% sensibility for the detection of diabetic macular oedema (45 º color photos,45 º green photos, 45 º stereoscopic green photos, 30 º stereoscopic color photos and 30 º stereoscopic green photos ). With the 30 º stereoscopic green photos we achieved a sensibility of 94%. The specificity reached values close to 95%. The coefficients of interobserver agreement were at 80%. Conclusion The stereoscopic color photos, the 30 º green photos and both the 45 º and 30 º stereoscopic green photos offer sufficient sensibility and specificity to be used for the diagnosis of diabetic macular edema.