Question | Answer |
What eye structure is transparent, biconvex, and focuses light on the retina | Lens |
Adjustment of the lens by the ciliary body | Accommodation |
The combining form for cornea is | Kerat/o |
Astigmatism | Defective curvature of the cornea or lens |
Glaucoma is primarily diagnosed by | Tonometry |
A blind spot; area of depressed vision surrounded by an area of normal vision | Scotoma |
Small hard mass on the eyelid; formed by a sevaceous gland enlargement | Chalazion |
Bacterial infection of the middle ear | Suppurative otitis media |
Visual examination of the ear | otoscopy |
contains sensitive cells (rods and cones) that transmit light energy to nervous impulses | Retina |
contains muscles that control the shape of the lens and secrete aqueous humor | ciliary body |
transparent body behind the iris in front of the vitreous humor; refracts light rays to bring them into focus on the retina | lens |
jelly-like material behind the lens; helps maintain the shape of the eyeball | vitreous humor |
dark center of the eye through which light rays enter | pupil |
vascular layer of the eyeball that is continuous with the iris | choroid |
delicate membrane lining the eyelids anc covering the anterior eyeball | conjunctiva |
fibrous layer of clear tissue that extends over the anterior portion of the eyeball | cornea |
colored portion of the eye; surrounds the pupil | iris |
tough, white outer coat of the eyeball | sclera |
region at the back of the eye where the retina meets the optic nerve | optic disc |
a yellowish region on the retina lateral to the optic disc | macula |
Bending of light rays by the conea, lens, and fluids in the eye | refraction |
Inflammation of the cornea | keratoconjunctivitus |
Surgical repair of the eardrum | tympanoplasty |