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Dictionary · Word part

ocul/o

A word root that means eye; ophthalm/o means eye too.

OK-yoo-loh root

What it means

Two roots for the eye. Ocul/o gives ocular (about the eye), intraocular pressure (the pressure inside the eye, raised in glaucomaglaw-KOH-muhAn eye disease in which the optic nerve is damaged, usually with raised pressure inside the eye, leading to loss of vision.Full entry ) and oculomotor (eye movement). Ophthalm/o gives ophthalmology (the study and treatment of eye disease), ophthalmic (for the eye, as in ophthalmic drops) and ophthalmoscope.

For the nurse

Check that eye drops are labeled ophthalmic before use; ear (otic) drops must never go in the eye.

At a glance

Also writtenoculo-, ophthalm/o, ophthalmo-

Related terms

glaucoma

An eye disease in which the optic nerve is damaged, usually with raised pressure inside the eye, leading to loss of vision.

eyelid

Either of the two folds of skin and muscle that cover and protect the front of the eye.

-scope

A word ending that means an instrument for looking or examining.

macular degeneration

An eye disease in which the macula, the center of the retina used for sharp, straight-ahead vision, slowly breaks down.

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