Pupil size following dark adaptation in patients with retinitis pigmentosa
نویسندگان
چکیده
منابع مشابه
Pupil size following dark adaptation in patients with retinitis pigmentosa.
According to the equivalent light hypothesis, molecular defects in the photoreceptor lead to a continuous activation of the photoreceptor cascade in a manner equivalent to real light. The consequences in diseases such as retinitis pigmentosa (RP) are as disruptive to the cells as real light. Two forms of the equivalent light hypothesis can be distinguished: strong - mutations in rhodopsin or ot...
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The time course of rod dark adaptation was measured in 12 patients and carriers of retinitis pigmentosa (RP). In contrast to previous studies the rod absolute threshold was determined prior to any exposure to the bleaching light. For seven of the patients and carriers the recovery of rod sensitivity to the prebleach level was prolonged, with the delay ranging from mild to severe. The prolongati...
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Background and Aims: Retinitis pigmentosa (RP) is the most common form of inherited retinal degeneration, photoreceptors loss of which in the retina causes visual loss. The purpose of the present study was to determine patterns of inheritance in RP patients in Yazd to help the health professional for designing suitable laboratory testing for the high risk families. Materials and Methods: Thirt...
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Previous investigations into cortical plasticity in the presence of ocular disease have focused on central retinal damage. Perceptually, patients often report distortions of visual space which can be partially explained by perceptual filling-in. The mechanisms involved could also apply to peripheral field loss. Spatial interval discrimination was tested in 28 retinitis pigmentosa (RP) patients ...
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to identify mental disorders and their prevalence in patients with retinitis pigmentosa (rp).this descriptive study was carried out between january 2009 and january 2010 on 417 patients with rp, who were members of iran rp center. the necessary data were collected using questionnaires consisting two parts: the background characteristics and questions assessing the mental health and screening pe...
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ژورنال
عنوان ژورنال: Brazilian Journal of Medical and Biological Research
سال: 2001
ISSN: 0100-879X
DOI: 10.1590/s0100-879x2001000800010