Optometry
OAT → four years → practice; residency optional
Your OD pathway
Doctor of Optometry
Primary eye care: refraction and lenses, diagnosis and medical management of eye disease, co-management with eye surgeons. Students who want direct-access, specialised clinical care with a predictable four-year program and no required residency.

- Entry point
- Undergraduate preparation
- Training length
- 4 years; residency optional
- When to apply
- The summer or fall before your intended start, when OptomCAS opens; many schools admit on a rolling basis.
Your route at a glance
- 01
Bachelor's + prerequisites
- 02
OAT
- 03
Apply through OptomCAS
- 04
4 years of optometry school
- 05
Boards, then practice; 1 year residency optional
Your preparation
- Audit each program's prerequisites. Commonly: biology with lab, general and organic chemistry with lab, physics with lab, microbiology, biochemistry. Programs differ, so build a school-by-school checklist.
- Prepare for the OAT. The OAT covers natural sciences, reading, physics and quantitative reasoning; check which exams each school accepts.
- Shadow optometrists in more than one setting, such as private practice and a co-management clinic.
- Line up 3 letters: practising optometrist, science professor, pre-health adviser or academic faculty member. Ask two to three months before you apply and waive your right to read them.
Your application
- Apply through OptomCAS. Covers the accredited schools and colleges of optometry in the US and Puerto Rico..
- Letters upload through OptomCAS; the application sits as incomplete until all 3 show as uploaded.
- Work backward from the current cycle's official dates; verification, letters and testing take time.
Your training & progression
- Two years of visual science and clinical skills, then clerkships and externships in clinics and VA centres.
- Boards along the way: NBEO Part I (year 3); NBEO Part II (year 4); NBEO Part III clinical skills.
- Residency is optional: Optometric residency, 1 year, through ORMatch. Most graduates practise after boards and licensure.
- Fellowship, if you want to subspecialise: 1 year in areas such as cornea and contact lenses, ocular disease, pediatric optometry.
What to weigh before you commit
- An optometrist is the primary eye-care doctor; an ophthalmologist is an MD or DO who completed a surgical residency and operates. The two co-manage patients. OD is four years after college; ophthalmology is medical school plus a four-year residency.
- Total time after your bachelor's: about 4 to 5 years, school.
- Interview season runs november to february: in-person campus visit or virtual panel or mmi. Individual trips to optometry colleges and VA health centres.
- Figures here describe what programs commonly ask for, never a cutoff. Confirm each program's current requirements through the official sources.
Which one, and why
An optometrist is the primary eye-care doctor; an ophthalmologist is an MD or DO who completed a surgical residency and operates. The two co-manage patients. OD is four years after college; ophthalmology is medical school plus a four-year residency.
Who signs your letters
3 letters, uploaded by the writers through OptomCAS.
Practising optometrist required
Speaks to the eye-care practice you observed.
Science professor required
Pre-health adviser or academic faculty member required
If you choose a residency
Optometric residency, 1 year, optional. ORMatch run by National Matching Services.
October
ORMatch applications open
January to February
Interviews at colleges, clinics and VA centres
February
Rank lists
March
Match results
Boards: NBEO Part I (year 3); NBEO Part II (year 4); NBEO Part III clinical skills; State licensure; ABO certification optional.
Interviews and travel
November to February: In-person campus visit or virtual panel or MMI, scheduled through ORMatch, Program email. Individual trips to optometry colleges and VA health centres.
Across every profession: residency and the match, letters, interviews and travel, fellowships.
Your next three steps
- 1.Shadow optometrists in two settings.
- 2.Check which schools accept the OAT, the MCAT or the GRE.
- 3.Map prerequisites against your remaining semesters.