Biomedical subjects
Publications and source records attributed to J Rabin.
Partial recovery from amblyopia can occur in animals if the the influence from the dominant eye is removed. This report describes a human, adult amblyope who lost central vision in the dominant eye, and regained useful vision in the amblyopic eye.
A dichoptic, size-matching technique was used to evaluate aniseikonia in a sample of axial anisometropes. During testing, the subjects were optically corrected to minimize differences in retinal image size. A clinically significant degree of aniseikonia was measured which varied in proportion to the magnitude of anisometropia. These results may reflect interocular differences in the spatial density of the retinal elements secondary to anisometropic ocular growth.
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Interocular differences in apparent size (aniseikonia) are typically associated with interocular differences in refractive error (anisometropia). Aniseikonia is generally thought to reflect disparities in retinal image size that often accompany anisometropia. This assumption was examined with seven highly anisometropic subjects who were tested under conditions in which no substantial retinal image size differences were present. Using a dichoptic size matching task, consistent and large (mean = 22%) aniseikonias were found. Myopic anisometropes exhibit perceptual minification, while hyperopes demonstrate perceptual magnification when using their more ametropic eye. Both ultrasonic and fundus examinations of these subjects indicate that differential retinal growth or stretching is responsible for these findings.
Anomalous visual experience during development has been shown to induce myopia in several species of animals. A retrospective analysis of refractive error among humans subjected to various ocular anomalies that disrupt pattern vision revealed a significant degree of myopia. This result suggests that emmetropization is a vision-dependent phenomenon.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
The authors describe the efforts of a community mental health district to improve services for gay men, lesbians, and bisexuals. A Gay Services Coordinating Committee recommended that the district (1) hire more sexual-minority staff, (2) give clients the option of seeing therapists sensitive to sexual minorities, (3) provide continuing education on homosexuality, and (4) appoint a contact person to coordinate services in each unit.