Combining forms
Ir and Irid/o
Iris
Opthalm/o
eye
Blepharitis
Inflammation of the eyelid
Ophthalmometer
Instrument for measuring the eye
Retin/o
Retina
Ophthalmology
Study of eye disease and surgery of the eye
Iridalgia
Pain in the iris
Phoropter
An instrument used to determine the prescription strength needed for corrective lenses
Cor/e and core/o
Pupil
Ophthalmoplasty
Plastic surgery of the eye
Corectopia
Pupil out of place
Retinoscope
Instrument used to examine the retina
Kerat/o and corne/o
Cornea
Ophthalmic or ocular
Pertaining to the eye
Keratoscleritis
Inflammation of cornea and sclera
Cytometer
Instrument for counting cells
Cycl/o
Ciliary body
Ophthalmoplegia
Paralysis of the eye (muscles)
Cycloplegia or cycloplegic
Paralysis of the ciliary body
Ophthalmoscope
Instrument used to examine the interior of the eye