Visual Function and Ocular Pigmentation in Albinism

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

130 participants

Study Classification

OBSERVATIONAL

Study Start Date

1976-06-30

Study Completion Date

2000-05-31

Brief Summary

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To study the relationship between visual function and ocular (iris, retina/choroidal) pigmentation in patients with albinism and other hypomelanotic disorders. To identify the carrier state in relatives of patients with ocular albinism.

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Detailed Description

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Visual function and ocular pigmentation are being studied in patients with albinism and other disorders associated with hypopigmentation. The degree of ocular pigmentation is assessed clinically by estimating the melanin content of the iris, retinal pigment epithelium, and choroid. Visual function is measured in the conventional manner to study central vision, and electrophysiological methods to detect a misrouting of the visual pathways. The purpose of this study is to document the visual deficit and the pigmentary changes of patients with albinism, to observe their natural course, and to determine whether misrouting of the visual pathways is present and is correlated with pigmentation.

Conditions

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Albinism Albinism, Ocular Albinism, Oculocutaneous

Eligibility Criteria

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Inclusion Criteria

Patients have been recruited into the study by referral from an ophthalmologist or pediatrician.

Entrance into the study was dependent upon clinical evidence of decreased or absent pigmentation in skin, hair, and/or eyes.

The definition was purposefully broad to include the broad range of phenotype variations and clinical heterogeneity.

The purpose of the study id to be able to document iris and retina/choroidal pigmentation and correlated these finding with visual function.

Eligible Sex

ALL

Accepts Healthy Volunteers

No