Prolonged rod dark adaptation in patients with cone-rod dystrophy. 1994

G A Fishman, and P Pulluru, and K R Alexander, and D J Derlacki, and L D Gilbert
Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, College of Medicine 60612.

Thirteen patients with cone-rod dystrophy were assigned into one of four previously described category subtypes according to clinical, electrophysiologic, and psychophysical criteria. The time course of rod dark adaptation was determined for each patient by means of a Goldmann-Weekers dark adaptometer. Nine of the 13 patients showed a normal time to return to their dark-adapted thresholds before bleaching, while four patients showed a prolonged recovery time. The four patients with a prolonged rod-recovery time were all from the same clinical subtype and showed a similar fundus appearance as well as similar electrophysiologic and psychophysical findings.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D010775 Photic Stimulation Investigative technique commonly used during ELECTROENCEPHALOGRAPHY in which a series of bright light flashes or visual patterns are used to elicit brain activity. Stimulation, Photic,Visual Stimulation,Photic Stimulations,Stimulation, Visual,Stimulations, Photic,Stimulations, Visual,Visual Stimulations
D012162 Retinal Degeneration A retrogressive pathological change in the retina, focal or generalized, caused by genetic defects, inflammation, trauma, vascular disease, or aging. Degeneration affecting predominantly the macula lutea of the retina is MACULAR DEGENERATION. (Newell, Ophthalmology: Principles and Concepts, 7th ed, p304) Degeneration, Retinal,Degenerations, Retinal,Retinal Degenerations
D003623 Dark Adaptation Adjustment of the eyes under conditions of low light. The sensitivity of the eye to light is increased during dark adaptation. Scotopic Adaptation,Adaptation, Dark,Adaptation, Scotopic
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293 Adolescent A person 13 to 18 years of age. Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D012684 Sensory Thresholds The minimum amount of stimulus energy necessary to elicit a sensory response. Sensory Threshold,Threshold, Sensory,Thresholds, Sensory

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