Ophthalmic Knowledge Assessment Program Scores and Written Qualifying Examination Performance.

First-time pass rate of the Written Qualifying Examination was 89% (1418 of 1597 residents).

Postgraduate year-4 Ophthalmic Knowledge Assessment Program scores were used for the rest of the analysis for simplicity.

Using postgraduate year-4 Ophthalmic Knowledge Assessment Program scores to predict passing/failing, the Written Qualifying Examination had 90.7% accuracy.