FRCOphth Part 1 and ICO Basic Sciences Mock Test: 50 MCQs

Last updated: October 2026

A 50-question basic sciences mock in the single-best-answer style used by the FRCOphth Part 1 and the ICO Standard examinations (Visual Sciences; Optics, Refraction and Instruments). It also suits OKAT Module 1 and first-year residents revising the foundations.

• Format: four options, single best answer, 50 minutes (the real Part 1 has two papers of 90 questions, two hours each).
• Topics: anatomy, embryology, physiology, electrophysiology, optics, pharmacology, pathology, microbiology, immunology, genetics and statistics.
• Explanations include the reasoning and a pearl for each question.

For exam formats and preparation advice see OKAP, FRCOphth and ICO exams. For the full basic-science syllabus in question form, see OKAT Decoded Volume 1 and its free sample mock.

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