Retinal Postphotoreceptor Layers and Macular Electroretinogram in Retinitis Pigmentosa
نویسندگان
چکیده
منابع مشابه
Correlation between macular volume and focal macular electroretinogram in patients with retinitis pigmentosa.
PURPOSE To determine whether a significant correlation exists between the morphology of the macula measured by optical coherence tomography (OCT) and the amplitude of focal macular electroretinograms (fmERGs) in patients with retinitis pigmentosa (RP). METHODS fmERGs were recorded in 43 patients with RP and 43 age-similar normal subjects, with a 15 degrees stimulus spot, 5.6 to 5.8 mm in diam...
متن کاملAutomated segmentation of outer retinal layers in macular OCT images of patients with retinitis pigmentosa
To provide a tool for quantifying the effects of retinitis pigmentosa (RP) seen on spectral domain optical coherence tomography images, an automated layer segmentation algorithm was developed. This algorithm, based on dual-gradient information and a shortest path search strategy, delineates the inner limiting membrane and three outer retinal boundaries in optical coherence tomography images fro...
متن کاملSimultaneous Presence of Macular Corneal Dystrophy and Retinitis Pigmentosa in Three Members of a Family
Macular corneal dystrophy (MCD) is an autosomal recessive hereditary disease. In most cases, various mutations in carbohydrate sulfotransferase 6 (CHST6) gene are the main cause of MCD. These mutations lead to a defect in keratan sulfate synthesis. Retinitis pigmentosa (RP) is another eye disorder with nyctalopia as its common symptom. It has been shown that more than 65 genes have been implica...
متن کاملRetinitis pigmentosa and retinal oedema.
Twenty-five patients with retinitis pigmentosa and retinal leakage were investigated. Oedema was present in dominant and X-linked inherited disease and is likely to be present in recessive disease as well. We suggest that this might be a general response seen in many types of tapeto-retinal degeneration to actively degenerating photoreceptors or pigment epithelium.
متن کاملLight adaptation of the electroretinogram. Diminished in retinitis pigmentosa.
The cone electroretinogram has been examined at different levels of ganzfeld adaptation in normals and subjects with retinitis pigmentosa (RP). As light adaptation increases, the amplitude and time course (measured as b-wave implicit time) of the cone ERG decrease in both normal and RP subjects. The same level of light adaptation, however, decreases the amplitude and the implicit time more in n...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Ophthalmology in Russia
سال: 2020
ISSN: 2500-0845,1816-5095
DOI: 10.18008/1816-5095-2020-1-81-87