Software Refraction With Mobilerone Versus Retinoscopy

This study is comparing a new smartphone-based eye refraction app called Mobilerone against the traditional method (retinoscopy) used by eye doctors to measure your glasses or contact lens prescription. **You may be eligible if...** - You have a refractive error (nearsightedness, farsightedness, or astigmatism) of no more than -12.00D in each eye - Your best-corrected vision is at least 20/25 with no lazy eye (amblyopia) - You have clear, healthy eyes with no major abnormalities - You are not diabetic - You are not on medications that heavily affect vision (such as certain antimalarials or corticosteroids) **You may NOT be eligible if...** - You have a very high prescription beyond -12.00D - You have significant eye disease affecting vision clarity - You are diabetic or on vision-affecting medications Talk to your doctor to see if this trial is right for you.