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KMID : 1011420140190030285
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Journal of Korean Ophthalmic Optics Society
2014 Volume.19 No. 3 p.285 ~ p.293
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A Relationship Between Visible Iris Diameter and Palpebral Aperture Size : Considered to Solve Uncomfortable Feeling of Soft Contact Lens
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Lee Jeong-Yun
Youk Do-Jin
Lee Ji-Young
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Abstract
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Purpose: In order to find suitable size of soft contact lens for different ages group of elementary student to
adults, visible iris diameter(horizontal, vertical) and palpebral aperture size were measured.
Methods: Visible iris diameter (horizontal, vertical) and palpebral aperture size were measured in different age groups of total 514 subjects (1028 eyes) who have no eye disease and none history of surgery included cosmetic purpose.
Results: No significant difference was found in iris diameter of both horizontal and vertical direction for different groups
of age and sex but horizontal direction of palpebral aperture size in middle school students and university students groups and vertical direction of palpebral aperture size in high school student group shows significant difference (p<0.05) by sex. Horizontal visible iris diameter, vertical visible iris diameter, horizontal palpebral aperture size and vertical palpebral aperture size shows significant difference in difference age and sex.
Conclusions: Visible iris diameter and palpebral aperture size are affective factor for soft contact lens diameter decision, especially it should considered more intensive for removing uncomfortable feeling of lens wearer.
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KEYWORD
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Horizontal visible iris diameter, Vertical visible iris diameter, Palpebral aperture, Palpebral width, Contact lens size
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