Change of Corneal Parameters after Removing Reverse Geometry Lens in Moderate Degree Myopia
Journal of the Korean Ophthalmological Society
;
: 1478-1485, 2005.
Article
in Korean
| WPRIM
| ID: wpr-63314
ABSTRACT
PURPOSE:
To investigate the recovery time associated with refractive and corneal topographic changes after discontinuing short term wear of reverse-geometry contact lenses in low and moderate myopic patients.METHODS:
Twenty-four eyes of 12 patients who were fitted with Ortho-K LK(TM) lenses for a mean duration of 7.9 months were divided into two groups based on the mean manifest refraction (MR) of -3.50D. In groups I (mean MR -2.83D) and II (mean MR -4.00D), uncorrected visual acuity, refractive correction, and topographic changes were evaluated at 3 days; 1, 2, and 3 weeks; and 1, 2, 3, and 6 months after discontinuation of lens wear. Corneal thickness was measured at its center and 3.0 mm from its center.RESULTS:
The uncorrected visual acuity, mean spherical equivalent, and average apical keratometric indices recovered at 2 weeks and 1 month after discontinuation of lens wear in groups I and II, respectively. Mean Sim K and corneal thickness recovered at 1 and 2 weeks in groups I and II, respectively. All of the recovered indices remained stable at 6 months.CONCLUSIONS:
Recovery of corneal changes after short-term use of reverse-geometry lenses was achieved at 2 weeks in cases of low myopia (less than -3.50D) and at 1 month in cases of moderate myopia (more than -3.50D), with both remaining stable to the 6-month mark.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Visual Acuity
/
Contact Lenses
/
Myopia
Limits:
Humans
Language:
Korean
Journal:
Journal of the Korean Ophthalmological Society
Year:
2005
Type:
Article
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