introduction sectoral retinitis pigmentosa (rp) is a rare clinical condition. case presentation we present a 60-year-old female with a history of mild night blindness and decreased vision in the left eye for about 15 years. conclusions fundus examination revealed retinal pigmentary changes in the inferotemporal sector and reduced arterial caliber. in addition, fundus autofluorescence, fluoresce...

AIMS Both pattern electroretinogram and peripheral colour contrast thresholds have been shown to be abnormal in glaucoma and ocular hypertension. This study evaluates each of these tests as tools for the early diagnosis of glaucoma, compares and contrasts the results, and examines the relation between the two tests in a large cohort of ocular hypertensive patients. METHODS Transient and stead...

Bests disease is an autosomal dominant hereditary macular dystrophy characterized by the presence of auto-fluorescent vitelline deposits. We report a case vitelliform stage bests in 23-year-old female patient. The diagnosis was made based on fundus appearance: egg yolk lesion, hypofluorescence early stages, OCT appearance and alteration electro-oculogram electroretinogram. exact frequency this ...

Feature extraction is an essential aspect of electroretinogram (ERG) signal analysis. The extracted features are beneficial to analyze the further and compress for storage or transmission purposes. Various methods have been widely employed extract characteristics ERG signals. Methods based on time-domain, frequency-domain, time-frequency domain nonlinear chaotic feature techniques used that cha...