Elsevier

Survey of Ophthalmology

Volume 21, Issue 4, January–February 1977, Pages 347-350
Survey of Ophthalmology

Quantification of the pinhole effect

https://doi.org/10.1016/0039-6257(77)90114-XGet rights and content

Abstract

Can the pinhole principle be practically applied to solving the problem of providing useful vision for aphakics without resorting to aphakic spectacles? The authors have experimentally quantified the pinhole effect and concluded that the pinhole, successfully produced by miotics in certain patients or by a thin, dyed contact lens, may have clinical value.

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