Impact of Scleral Contact Lens Use on the Rate of Corneal Tr
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To evaluate the association of scleral contact lens (SCL) use on the risk for keratoplasty for people with keratoconus a study was conducted.

The electronic health records of patients receiving eye care were reviewed. Patients with a diagnostic code of keratoconus or corneal ectasia, no previous history of keratoplasty, and for whom data were available for both eyes were included. Using a multivariable Cox regression model, associations between scleral contact lens use and keratoplasty were tested and adjusted for sociodemographic factors, maximum keratometry, and current contact lens (CL) use.

Two thousand eight hundred six eyes met the inclusion criteria. contact lens use in each eye was 36.2% with no contact lens, 7.2% soft, 33.9% rigid gas permeable (RGP), and 22.7% scleral. A total of 3.2% of eyes underwent keratoplasty. In the adjusted model, scleral contact lens or rigid gas permeable contact lens use significantly lowered the hazard of undergoing keratoplasty when compared with no contact lens use. Factors associated with increased risk of keratoplasty were black race as compared to a white, younger age, and lower socioeconomic status. Keratoplasty was not associated with sex, insurance, or maximum keratometry.

Physicians should maximize the use of scleral or rigid gas permeable contact lenses because patients who successfully use contact lens have almost one-fifth of the risk of undergoing keratoplasty.

Source:https://journals.lww.com/corneajrnl/Abstract/2021/01000/Impact_of_Scleral_Contact_Lens_Use_on_the_Rate_of.7.aspx
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