Completely free
No account walls, no upsell
Free exam prep for every test — 20,000+ exam pages and 2.4M+ practice questions.
Open free COT prep resources ↗Exam facts & prep options
Certified Ophthalmic Technician (COT)
The Certified Ophthalmic Technician (COT) is the intermediate-level core certification of the International Joint Commission on Allied Health Personnel in Ophthalmology (IJCAHPO), earned by passing a 200-question, 180-minute multiple-choice examination at a Pearson VUE test center plus a 120-minute computer-simulated COT Skill Evaluation demonstrating seven clinical tasks (lensometry, visual fields, ocular motility, keratometry, retinoscopy, refinement, tonometry).
Official exam siteJump to prep options ↓
Questions200 multiple-choice questions (multiple-choice examination); the separate COT Skill Evaluation is a task-based practical, not an item-counted test
Testing timeMultiple-choice examination: 180 minutes; initial COT Skill Evaluation: 120 minutes
ScoringPass/fail; no cut score is published and candidates are not shown their actual score. For the Skill Evaluation, all assigned tasks must be successfully completed
Exam feeUSD 325 initial (covers 1 multiple-choice attempt and 1 COT Skill Evaluation attempt); USD 275 1st retest; USD 150 2nd retest; COT Skill Evaluation practice test USD 85 and Skill Evaluation retest USD 85; reduced fees for US and Canadian military/government personnel
Prep options
Study resources for COT
Independent prep
Courses and study resources
Exam overview
What to know before choosing your prep
- Who runs it
- IJCAHPO
- Category
- Eye Care Technology
- Current version
- Current specification; no public version label (content refreshed by IJCAHPO practice analysis every five years)
- Where it applies
- International / multi-country
- Exam languages
- English
- Testing provider
- Pearson VUE
- Format
- Computer-based multiple-choice exam at Pearson VUE test centers (OnVUE online testing is NOT available for the COT — only COA and CRT); the Skill Evaluation is computer-simulated
- Availability
- By appointment at Pearson VUE test centers within a 90-day eligibility period stated in the confirmation letter (one 30-day extension allowed for USD 50)
- Results
- Unofficial pass/fail Performance Report at the test center; official results mailed by IJCAHPO two to four weeks after the examination (results sent by mail only)
- Credential validity
- The multiple-choice examination and the COT Skill Evaluation must both be completed within 24 months of application approval; certification itself is maintained through IJCAHPO recertification
- Remote testing
- Not available
Exam structure
Two required parts: (1) one 200-item multiple-choice examination covering the COT content areas (largest: Visual Assessment 7%, Ocular Motility Testing 6%, Surgical Assisting 6%, Ophthalmic Imaging 7%, Biometry 5%, Ophthalmic Patient Services and Education 12%); (2) a computer-simulated COT Skill Evaluation of seven demonstrated tasks — lensometry, visual fields, ocular motility, keratometry, retinoscopy, refinement, and applanation tonometry — with practice and retest options
Where rules vary
IJCAHPO treats the United States and Canada as its standard certification scope; the COT is a single uniform English-language exam. Military fee reductions apply to personnel of both countries, and special consideration exists for training received outside the two countries.
Eligibility
One of four pathways: COT-T1 graduation from an ICA-accredited Technician-level program; COT-T2 current COA plus 12 IJCAHPO CE credits within 12 months and 2,000 hours employed as a COA under an ophthalmologist within 24 months; COT-T3 current Certified Orthoptist (CO or OC(C)) plus 12 CE credits and 2,000 hours within 24 months; COT-T4 COA fast-track with 6,000 hours of non-certified work experience under an ophthalmologist
Retake policy
Up to two retests at reduced fees, with the retest application received within 12 months of the initial examination; after that, a 12-month waiting period from the initial test date applies before reapplying with a new application and full fee