What question did this study set out to answer?

To quantify the effect of hydrogel contact lens wear on glare-related visual disability.

March 21, 2026

Disability Glare Increased by Hydrogel Lens Wear

Key Points

To quantify the effect of hydrogel contact lens wear on glare-related visual disability.
Two experimental conditions were compared: wearing hydrogel contact lenses and wearing equivalent vision correction in a trial frame.
Increment thresholds were measured as a function of background luminance and glare source location.
Participants' responses to glare were analyzed at varying angles and background lighting conditions.
A significant increase in glare-related visual disability was observed while wearing hydrogel lenses.
The glare effect was maximal at low background luminance levels.
Increased glare sensitivity was noted as the angle between the glare source and target decreased.

Abstract

ABSTRACT Decreased tolerance to glare is a common complaint in hydrogel contact lens wearers; yet, to our knowledge, the effect has never been quantified. By measuring increment thresholds as a function of background luminance and glare source location in two experimental conditions, (1) while wearing a hydrogel contact lens correction and (2) while wearing the spherical equivalent of their contact lens correction in a trial frame, we were able to quantify a significant contact lens‐induced increase in glare‐related visual disability. The effect is maximal at low background luminance levels, increases as the angle between the glare source and target decreases, and becomes lost in noise at high background luminance levels.

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Cite This Study

Applegate et al. (Fri,) studied this question.

synapsesocial.com/papers/69be387d6e48c4981c678e83 https://doi.org/https://doi.org/10.1002/j.2330-9512.1987.tb01312.x

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