Conducted in China, this research indicated taller and heavier individuals had greater axial length and flatter corneas—but no corresponding increase in refractive error.
Actual usage may be higher, as this database underrepresents pediatric ophthalmology practices and excludes optometrists. Procedures were more likely (vs. keratoplasty) in white male patients using commercial insurance.
These patients had significantly more complications—such as corneal scarring, ulcers and keratitis—than controls, suggesting a need for better alternatives.