What question did this study set out to answer?

The aim is to quantify visual performance during the initial adaptation phase of soft hydrophilic contact lens wear.

March 21, 2026

Visual Performance with Soft Hydrophilic Contact Lenses

Key Points

The aim is to quantify visual performance during the initial adaptation phase of soft hydrophilic contact lens wear.
Development of a televised test system for evaluating visual performance.
Clinical study involving 27 subjects who were new to soft contact lenses.
Measurement of visual performance scores, response latency, and blink activity during the first month of wear.
Subjects demonstrated varying levels of visual performance during adaptation.
Some users developed strategies to optimize their visual performance when necessary.

Abstract

An instability of the visual correction is sometimes associated with soft hydrophilic contact lenses. However, this problem does not seem to have detracted from the commercial success of this form of refractive aid. To facilitate the quantification of visual performance during soft lens wear, a televised test system was developed and has been fully described elsewhere. Results are now presented of a clinical study using this television (TV) system. Visual performance scores, in conjunction with response latency and blink activity data, were obtained from the eyes of 27 experimentally naive subjects during the first month of adaptation to soft contact lens wear. The results suggest that the soft contact lens wearer has recourse to a strategy whereby he can optimize his level of visual performance when necessary.

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