NBEO Part I Applied Basic Science (ABS) — Optometry Board Exam
The NBEO Part I Applied Basic Science (ABS) exam assesses the foundational science knowledge required to enter clinical optometry, covering optics, anatomy, pharmacology, microbiology/pathology, and biochemistry. It is a required licensing examination administered by the National Board of Examiners in Optometry for U.S. optometry licensure.
30
Questions
35 min
Time Limit
75%
To Pass
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Exam Rules
- You can skip questions and return to them later
- Flag questions for review before submitting
- No feedback shown until you submit the entire exam
- Unanswered questions count as wrong — answer everything
- 10 pretest questions are mixed in and don't affect your score
- Timer auto-submits when time runs out
- Your progress is auto-saved every 30 seconds