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Korean J Ophthalmol. 2018 Apr;32(2):89-94. doi: 10.3341/kjo.2017.0099. Epub 2018 Mar 13.

Influence of Sodium Hyaluronate Concentration on Corneal Aberrations in Soft Contact Lens Wearers.

Author information

1
Department of Ophthalmology, Pusan National University Hospital, Pusan National University School of Medicine and Medical Research Institute, Yangsan, Korea.
2
Department of Ophthalmology, Gyeongsang National University Changwon Hospital, Gyeongsang National University School of Medicine, Changwon, Korea.
3
Department of Ophthalmology, Gyeongsang National University Changwon Hospital, Gyeongsang National University School of Medicine, Changwon, Korea. loveis293@naver.com.

Abstract

PURPOSE:

This study aimed to evaluate the influence of varying concentrations of sodium hyaluronate (SH) eye drops on corneal aberrations in normal individuals wearing silicone hydrogel contact lenses.

METHODS:

Normal individuals wearing silicone hydrogel contact lenses were enrolled in this study. Subjects were classified into two groups depending on the concentration of the preservative-free SH used (group 1, 0.1% SH; group 2, 0.3% SH). All subjects were asked to blink five times after instillation of the SH eye drop and before the Galilei measurements. Corneal aberrations were measured over the contact lenses before and after SH eye drop instillation. Visual acuity (VA) over the contact lenses was also measured both before instillation of the SH eye drop and after the subjects completed the five blinks.

RESULTS:

There was no change in VA after SH instillation in group 1; however, group 2's VA significantly deteriorated after SH instillation. Changes in VA after SH instillation compared to baseline were significantly higher in group 2 than in group 1. Similarly, the increase in corneal aberrations after SH instillation was significant in group 2 but not significant in group 1. Among the significantly increased corneal aberration parameters, defocus was the main type in group 2. Changes in corneal aberrations after SH instillation compared to baseline were significantly higher in group 2 than in group 1.

CONCLUSIONS:

A 0.3%-concentration of SH increases corneal aberration and decreases VA in soft contact lens wearers. Defocus is the main type of aberration that increased in the 0.3% SH instillation group.

KEYWORDS:

Contact lenses; Hyaluronic acid; Visual acuity; Wavefront aberration

PMID:
29611370
PMCID:
PMC5906407
DOI:
10.3341/kjo.2017.0099
[Indexed for MEDLINE]
Free PMC Article

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