"Researchers recently found that patients who wear scleral contact lenses for keratoconus had a significantly lower risk of requiring keratoplasty (corneal transplant), which may warrant the wide-scale use of sclerals for the condition. 
"The team noted that 2.03% of patients wearing scleral lenses required keratoplasty, compared with 6.82% of those who did not wear scleral lenses. The use of a scleral lens was associated with a 72.7% decreased hazard of requiring keratoplasty."