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KMID : 1011420210260030199
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Journal of Korean Ophthalmic Optics Society
2021 Volume.26 No. 3 p.199 ~ p.205
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Silicone Hydrogel Contact Lens Wear and Dryness
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Kim Jeong-Mee
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Abstract
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Purpose: To investigate whether dryness is relieved after wearing silicone hydrogel lenses for one week.
Methods: Silicone hydrogel (SiHy) contact lens was worn on the eyes of 29 subjects (23.12±1.69 years, female: 20, male: 9). Noninvasive tear break-up time (NITBUT) and redness were measured using Keratograph 5M. The subjects were surveyed using the Ocular Surface Disease Index (OSDI) and Contact Lens Dry Eye Questionnaire-8 (CLDEQ-8) questionnaires for dry eye and subjective ocular symptoms.
Results: Before wearing SiHy lenses, 11 subjects (37.9%) were diagnosed with dry eyes based on the OSDI score. During the seven days of wearing the SiHy lens, there was a significant difference in NITBUT (p=0.005), but no significant difference was observed in bulbar and limbal redness. The subjective ocular symptoms of five items related to wearing contact lenses were significantly different for all items: discomfort (p= 0.043), dryness (p=0.033), changeable vision (p=0.025), closing eye (p=0.041), and lens removal (p=0.012).
Conclusions: In contact lens practice, it is important to recommend an appropriate contact lens material, wear schedule, or replacement modality that may alleviate dryness and discomfort.
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KEYWORD
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Dryness, Non-invasive tear break-up time, Silicone hydrogel lens, Subjective ocular symptoms
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