What question did this study set out to answer?

Examine the long-term effects of contact lenses on corneal and upper lid health in a 10-year wearer.

March 21, 2026

Effect of Contact Lens on Cornea and Lid of a 10‐year Wearer

Puntos clave

Examine the long-term effects of contact lenses on corneal and upper lid health in a 10-year wearer.
Assessed corneal and upper lid staining in control and experimental conditions over 29 days.
Measured corneal curvature and sensitivity before and after contact lens removal and re-insertion.
Evaluated changes in upper lid sensitivity in relation to contact lens wear.
Staining of corneal and upper lid tissues disappeared within three days after lens removal.
Corneal curvature initially flattened by 1.25 D, then steepened by 0.50 D post-removal.
Corneal sensitivity increased after contact lens removal, then decreased after re-insertion.

Resumen

ABSTRACT Change in staining of corneal and upper lid tissues, in corneal curvature, in corneal sensitivity, and in upper lid sensitivity of a 10‐year wearer were investigated systematically in one control and two experimental conditions during a 29‐day period. Results showed that staining of cornes and upper lid disappeared in three days after removal of contact lens and then reappeared after reinsertion. Corneal curvature first flattened (1.25 D) and then steepened (0.50 D) after removal, and steepened and then flattened after reinsertion. Corneal sensitivity increased after removal and decreased after reinsertion, and upper lid sensitivity first decreased and then increased after removal, and decreased reinsertion.

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