The incidence of glassy corneal striae.

Glassy corneal striae (GCS) are fine colorless lines that run parallel to each other in a vertical or near-vertical orientation in the central cornea near the level of Descemet's membrane. It is postulated that GCS "brace" the stroma, thus adding stability to the cornea. The purpose of this study was to determine the incidence of GCS in patients with "normal" corneas and to determine whether a correlation exists between the presence of GCS and gender, age, iris color, or corneal astigmatism (toricity).

A 3-year prospective study of the clinical performance of daily disposable contact lenses compared with frequent replacement and conventional daily wear contact lenses.

Purpose: To determine the clinical performance of daily disposable contact lens wear compared to conventional daily wear contact lenses and frequent replacement contact lenses.

Methods: This 3-year prospective study was conducted in 12 U.S.

Multisite comparison of contact lens modalities. Daily disposable wear vs. conventional daily wear in successful contact lens wearers.

Background: RESULTS are reported for the first year of one facet of an ongoing multisite clinical investigation. In this article, one subpopulations of subjects wearing soft contact lenses on a daily disposable wear schedule (DDW is compared to a second subpopulation wearing lenses on a conventional daily wear (CDW) basis.

Methods: All subjects recruited were successfully wearing lenses on a conventional daily wear basis at the time of enrollment.

A longitudinal study of corneal astigmatism changes in Asian eyes.

This study investigated changes in corneal astigmatism with age of 494 Asian eyes in a retrospective study. The results are compared to previous studies of non-Asian eyes. The current study demonstrates a greater magnitude in the rate of change of corneal astigmatism.