Medical Root
opt/o
opt/o means vision or eye (from the Greek optos, meaning seen or visible).
What does opt/o mean?
The root opt/o means vision or eye. It comes from the Greek word optos, meaning seen. It appears in words about sight and eye care. For example, optometry is the practice of testing vision and prescribing corrective lenses. It is related to ocul/o and ophthalm/o, which also refer to the eye.
Example words using opt/o
Related word parts
Frequently asked questions
What does opt/o mean?
The root opt/o means vision or eye and comes from Greek.
What is optometry?
It is the testing of vision and prescribing of corrective lenses, combining opt/o with -metry (measurement).
How is opt/o different from ophthalm/o?
Opt/o refers to vision and sight, while ophthalm/o refers to the eye itself and appears in medical and surgical eye terms.
Study reference only — not medical advice. Always consult qualified sources for clinical decisions.