Stereopsis Simulating Small-Aperture Corneal Inlay and Monovision Conditions

Journal of Refractive Surgery
José J CastroMiriam Casares-López

Abstract

To analyze stereoscopic vision under a broad range of experimental conditions simulating small-aperture corneal inlay and monovision conditions. A total of 10 patients participated in the study. The anisocoria generated by corneal inlays was simulated by using a small-aperture contact lens fitted on the non-dominant eye. Visual acuity, contrast sensitivity function, visual discrimination capacity (halo perception), and stereoacuity tests were performed under natural conditions or when the non-dominant eye wore the small-aperture contact lens under two conditions: induced anisocoria and induced anisocoria combined with monovision (using two add-powers: +0.75 and +1.25 diopters [D]). Stereoscopic vision and binocular summation were analyzed under those experimental conditions and for far, intermediate, and near vision. The results showed a deterioration in stereoacuity with respect to natural conditions, being significant mainly for near and intermediate distances. Results with other visual functions showed a deterioration of the binocular summation and therefore of visual performance, although not in a generalized way for all distances. Binocular visual acuity under the conditions that used the small-aperture contact lens was co...Continue Reading

References

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Feb 10, 2017·Clinical Ophthalmology·Steven H LinnMajid Moshirfar

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Citations

Apr 30, 2019·Current Opinion in Ophthalmology·H Burkhard Dick
Mar 25, 2021·Scientific Reports·Walter D FurlanJuan A Monsoriu
Apr 28, 2021·Scientific Reports·Francesco MartinoRosario G Anera

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