منابع مشابه
Cone rod dystrophies
Cone rod dystrophies (CRDs) (prevalence 1/40,000) are inherited retinal dystrophies that belong to the group of pigmentary retinopathies. CRDs are characterized by retinal pigment deposits visible on fundus examination, predominantly localized to the macular region. In contrast to typical retinitis pigmentosa (RP), also called the rod cone dystrophies (RCDs) resulting from the primary loss in r...
متن کاملVisual acuity changes in cone and cone-rod dystrophies.
PURPOSE The purpose of the study was to evaluate longitudinal visual acuity (VA) changes in cone (CD) and cone-rod dystrophies (CRD) in order to develop recommendations for follow-up strategies and to define an optimal time for potential therapeutic intervention. METHODS Patients with clinically defined CD and CRD, who had at least three clinical examinations within a follow-up period of a mi...
متن کاملAlterations of L- and M-cone driven ERGs in cone and cone–rod dystrophies
To study the L- and M-cone pathways and their interactions in patients with cone and cone-rod dystrophies, ERG responses were measured to stimuli which modulated exclusively the L- or the M-cones, or the two simultaneously. The L- and M-cone driven ERG amplitudes were considerably reduced in the patients. The mean phases of the L-cone driven ERGs in the patients lagged those of normals signific...
متن کاملWide-field fundus autofluorescence abnormalities and visual function in patients with cone and cone-rod dystrophies.
PURPOSE To evaluate the clinical utility of wide-field fundus autofluorescence (FAF) in patients with cone dystrophy and cone-rod dystrophy. METHODS Sixteen patients with cone dystrophy (CD) and 41 patients with cone-rod dystrophy (CRD) were recruited at one institution. The right eye of each patient was included for analysis. We obtained wide-field FAF images using a ultra-widefield retinal ...
متن کاملCone and rod function in cone degenerations
Progressive cone dystrophy (CD) is usually marked in the initial stages by reduced visual acuity, color vision deficiency and alterations in the photopic electroretinogram, while morphological alterations can be very mild; in some forms rods are affected in a later stage as well. We examined 40 patients with progressive cone dystrophy to determine the extent of functional losses in the cone sys...
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ژورنال
عنوان ژورنال: Journal of Medical Genetics
سال: 1992
ISSN: 1468-6244
DOI: 10.1136/jmg.29.5.289