COT Domain 1: History and Documentation (3%) - Complete Study Guide 2026
History and Documentation sits at the very front of the COT blueprint, and it carries just 3% of the multiple-choice exam - one of the smallest...
COT Domain Deep Dives
Domain Deep Dives for the Certified Ophthalmic Technician (COT) exam - 4 in-depth guides to help you prepare with confidence. Browse all study resources or jump straight into a guide below.
COT Domain 2: Visual Assessment (7%) - Complete Study Guide 2026
Visual Assessment is one of the smaller-weighted domains on the current COT multiple-choice examination, accounting for 7% of the 200 scored and...
COT Domain 3: Visual Field Testing (3%) - Complete Study Guide 2026
Visual Field Testing sits at just 3% of the blueprint, tying it with History and Documentation as one of the lighter-weighted domains on the current...
COT Domain 4: Pupil Assessment (4%) - Complete Study Guide 2026
Pupil Assessment accounts for just 4% of the current COT multiple-choice blueprint, but don't mistake a small percentage for low difficulty.
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