ocular
Definitions
Relating to the eye or to vision
眼睛的；视觉的
The eyepiece of an optical instrument such as a microscope or telescope
（显微镜、望远镜等的）目镜
Root Breakdown
Root-derivedocul (eye) + -ar (relating to) = 'of the eye.' That gives the adjective (ocular nerve, ocular disease). In optics the same word turned into a noun for the lens your eye looks through — the ocular, or eyepiece, of a microscope or telescope.
Root ocul still carries 4 more wordsUsage Guide
- Medical (adjective): ocular nerve, ocular disease, ocular migraine — formal, used in clinical contexts where everyday English would say 'eye.'
- Optics (noun): the ocular is the eyepiece; pairs with 'objective' (the lens near the object). On a microscope, light enters the objective and exits the ocular.
Note: in everyday speech people say 'eye drops' / 'eye test,' not 'ocular drops.' ocular stays in technical registers.
Example Sentences
- 1.
The doctor referred her to a specialist for an ocular examination.
- 2.
Several ocular diseases can be detected early through routine screening.
- 3.
Look through the ocular and slowly turn the focus knob.