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A Multi Focal Visual Outcome Study Using Different Near Additions

2014-08-27 03:19:57 | BioPortfolio

Summary

A multi-centre non-randomized clinical investigation to assess multifocal visual outcomes using different near additions, for the treatment of aphakia after cataract removal.

Study Design

Observational Model: Cohort, Time Perspective: Prospective

Conditions

Cataract

Intervention

Visual Acuity, Contrast sensitivity, Reading Speed, Eye Health

Location

Ruprecht- Karl Universitat Heidelberg
Abteilung Augenheilkunde
Heidelberg
Germany
69120

Status

Terminated

Source

Rayner Intraocular Lenses Limited

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:19:57-0400

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Medical and Biotech [MESH] Definitions

Clarity or sharpness of OCULAR VISION or the ability of the eye to see fine details. Visual acuity depends on the functions of RETINA, neuronal transmission, and the interpretative ability of the brain. Normal visual acuity is expressed as 20/20 indicating that one can see at 20 feet what should normally be seen at that distance. Visual acuity can also be influenced by brightness, color, and contrast.

The ability to detect sharp boundaries (stimuli) and to detect slight changes in luminance at regions without distinct contours. Psychophysical measurements of this visual function are used to evaluate visual acuity and to detect eye disease.

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Repetitive visual hallucinations experienced mostly by elderly with diminished visual acuity or visual field loss, with awareness of the fictional nature of their hallucinations. It is not associated with delusions and other sensory hallucinations.

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