Visual outcome of Soflens Daily Disposable and Soflens Daily Disposable for Astigmatism in subjects with low astigmatism

Abstract

Purpose:  To compare the visual outcome of Soflens Daily Disposables and Soflens Daily Disposable for Astigmatism (Bausch & Lomb, Rochester, NY, USA) when worn by subjects with low astigmatism.

Methods:  Forty‐one subjects (aged 19 to 40-years) with myopia between 0.50-D to 6.00-D and astigmatism not more than ‐1.25-D in at least one eye were recruited and fitted with spherical and toric soft contact lenses in this double‐masked, non‐dispensing cross‐over study. High and low contrast logMAR visual acuities were measured over the lenses. At the end of the study, each subject was asked to complete a questionnaire on vision, initial comfort and ease of handling of the two lens types.

Results:  Monocular and binocular high and low contrast logMAR visual acuities were significantly better with the toric lenses compared with the spherical lenses (p < 0.01). Results from the questionnaire showed a significantly higher grade for vision with the toric lenses than with the spherical lenses (p = 0.003) but no significant differences in initial comfort and ease of handling between spherical and toric lenses (p > 0.21).

Conclusions:  The results of the present study show that both subjective and objective vision in myopic subjects with low astigmatism improves significantly when corrected with toric lenses compared with spherical lenses.

Key words:

• astigmatism
• contact lenses
• daily disposable
• soft contact lenses

ACKNOWLEDGEMENT

The clinical work was conducted at the facilities at the Centre of Myopia Research funded by Niche area funding (J‐BB7P) by The Hong Kong Polytechnic University.