Bradyopsia

Definition:

Bradyopsia is a condition in which patients show a prolonged response suppression on electroretinogram and have delayed adapting to sudden changes in luminance levels, photophobia, and difficulties seeing moving objects. Visual acuity is normal to moderately reduced in the affected individuals. Recessive mutations have been reported in the genes encoding RGS9 and R9AP that have a critical role in the recovery phase of visual transduction.

References:

[1]. Dyonne T Hartong, et al. Six patients with bradyopsia (slow vision): clinical features and course of the disease. Ophthalmology. 2007 Dec;114(12):2323-31. [Content Brief]

[2]. Koji M Nishiguchi, et al. Defects in RGS9 or its anchor protein R9AP in patients with slow photoreceptor deactivation. Nature. 2004 Jan 1;427(6969):75-8. [Content Brief]

[3]. Michel Michaelides, et al. Novel mutations and electrophysiologic findings in RGS9- and R9AP-associated retinal dysfunction (Bradyopsia). Ophthalmology. 2010 Jan;117(1):120-127.e1. [Content Brief]

Biomedical Dictionary

The Biomedical Dictionary is a comprehensive and professional collection of biological academic terms and subject datas. All explanations are supported by authoritative books or high impact factor literatures, and you can acquire accurate explanations of the biomedical terms you want to know.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

Name
Email *

	Sorry, but the email address you supplied was invalid.