Virgilio Lima-Gómez, Servicio de OftalmologÃa, Hospital Juárez de México, Ciudad de México, México M. Guadalupe Colas-Calvere, Servicio de OftalmologÃa, Hospital Juárez de México, Ciudad de México, México Selma A. Somilleda-Ventura, División de Investigación. Hospital Juárez de México, Ciudad de México, México Dulce M. Razo Blanco-Hernández, División de Investigación. Hospital Juárez de México. Ciudad de México, México
Background: Predominantly peripheral lesions (PPLs) could be any sign of diabetic retinopathy that only occurs outside the central 30° of the retina. These lesions represent an associated progression risk factor of retinopathy. Methods: An observational, cross-sectional, prospective, comparative study in subjects with (Group 1) or without (Group 2) diabetes was conducted. We determined the proportion and 95% confidence intervals of retinopathy level, the proportion of peripheral retinal changes, and the proportion of eyes with only PPLs of retinopathy. We compared peripheral retinal changes between subjects with and without diabetes by χ2 test. Results: Two hundred subjects were evaluated, 77% female, mean age of 54.6 ± 7.35 years. In Group 1, 27% had some level of diabetic retinopathy and in 23%, it was bilateral. Only 2% of these subjects had PPLs. Peripheral retinal changes not associated to diabetes were found in 47% in Group 1 vs. 42% in Group 2 (p > 0.05). Conclusions: The conventional non-mydriatic camera for fundus eye photography is safe to evaluate subjects with diabetes and without ocular symptoms, in which cases peripheral retinal exploration could be omitted.
Keywords: Detection. Diabetes. Diabetic retinopathy.