Simulation of a central scotoma using contact lenses with an opaque centre

This study evaluated the feasibility of using soft contact lenses (CLs) with an opaque centre to induce absolute central scotomas that move with the eye. We examined the geometrical optics prediction that scotoma size will vary with the size of the CL's opaque centre and with ocular pupil size. We also tested the hypothesis that high environmental light levels will ensure that the ocular pupil will remain small enough, even with opaque centre CLs, to generate absolute scotomas representative of those experienced by patients with age-related macular disease.

Publication Date:
Jan 01 2018
Date Submitted:
Nov 21 2018
Ophthalmic and Physiological Optics
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 Record created 2018-11-21, last modified 2019-04-03

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