Myopia Risk Estimator

Disclaimer: This tool provides a general estimation based on common risk factors. It is NOT a substitute for professional medical advice or an eye examination. Consult your optometrist for accurate assessment and guidance.

ⓘ Finding Spherical Equivalent (SE):
Use your prescription:
SE = Sphere + (Cylinder / 2)

Example: Sphere -2.00, Cylinder -1.00
SE = -2.00 + (-1.00 / 2) = -2.50

No Cylinder? SE is just the Sphere value.

Different eyes? Use the SE for the eye with the bigger minus number (most nearsighted).
Enter 0 if unsure or if you don't wear glasses/contacts.
Based on population studies showing different prevalence rates.