The eyepiece of a microscope or other optical instrument.
"The technician adjusted the ocular to get a clearer view of the specimen under high magnification."
of or relating to or resembling the eye
"ocular muscles"
"an ocular organ"
"ocular diseases"
"the optic (or optical) axis of the eye"
"an ocular spot is a pigmented organ or part believed to be sensitive to light"
"ophthalmic defect"
Of, or relating to the eye, or the sense of sight
"The ocular damage from staring at the bright sun left him blind in that eye for several hours."