Optodle is a daily guessing game built around real optometry and ophthalmology cases. Each day presents a new diagnosis as a series of clinical hints — guess wrong, and the next hint unlocks, up to six tries.
It started as a fun way to practice niche eye disease cases with friends, and grew into something students studying for boards like the NBEO — or anyone who wants to stay sharp on rarer diagnoses — use to test themselves daily.
Optodle is built and maintained by optometrists.