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KMID : 1011420100150020137
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Journal of Korean Ophthalmic Optics Society
2010 Volume.15 No. 2 p.137 ~ p.144
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Clinical Evaluation of Prism-stabilized Toric Soft Contact Lens Fit
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Kim Soo-Hyun
Kim Jai-Min
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Abstract
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Purpose: This study was to evaluate the clinical performance of 1-Day disposable toric soft contact lenses (TSCL) and to compare the visual performance with glasses and TSCL.
Methods: In a two-week investigation of ’prism ballast’ designed TSCL, occular refractions in 15 (30 eyes) healthy subjects were within the range of -2.75 D to -8.00 D spherical power and -0.75 DC to -2.25 DC cylinderical power (with-the-rule). Subjects were assessed the clinical performance (orientation, centration, movement, tightness, rotation recovery, symptoms) of TSCL and compared binocular vision and contrast sensitivity with corrected glasses and TSCL at initial and two-week follow-up visits.
Results: The prism-ballast design TSCL achieved better orientation, rotation recovery and symptoms over 2 weeks period. There was no statistically significant difference between spectacles and TSCL with respect to measuring binocular vision and contrast sensitivity.
Conclusions: The clinical performance was good with prism-ballast design toric soft contact lenses. Evaluation of binocular vision and contrast sensitivity did not show the differences between spectacles and TSCL correction. This study suggests that TSCL wearers can be achieved similar visual performance for spectacles wearers.
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KEYWORD
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Toric Soft Contact Lens, Orientation, Rotation recovery, Stability, Prism ballast design
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