| A | B |
| cornea | transparent membrane that lies anterior to the iris, refracts light rays |
| iris | pigmented muscle that regulates the size of the pupil |
| pupil | opening in the iris that allows light to enter the eye |
| lens | structure that refracts the light rays so the image is focused onto the retina |
| retina | the inner layer of the back of the eyeballthat contains visual sensory receptor |
| meibomian gland | oil glands located along the lid margins |
| conjunctiva | mucous membrane that lines the eye lids and anterior eyeball excluding the cornea |
| blepharitis | inflammation of the eyelid |
| conjunctivitis | inflammation of the conjunctiva |
| dacryocystitis | inflammation of the lacrimal gland |
| diplopia | double vision |
| iritis | inflammation of the iris |
| keratitis | inflammation of the cornea |
| photophobia | sensitivity to light |
| retinopathy | disease of the retina |
| astigmatism | defective curvature of the cornea |
| cataract | clouding of the lens |
| chalazion | obstruction and buildup of iol in a gland in the eye lid |
| detached retina | separation of the retina from the back of the eyeball |
| glaucoma | abnormal increase of intra ocular pressure |
| macular degeneration | deterioration of a portion of the retina (macula lutea) resulting in loss of central vision |
| nystagmus | involuntary jerking movements of the eye |
| strabismus | crossed eye, or lazy eye |
| hordeolum | infection of an oil gland near the lid margin |
| corneal abrasion | a scratch in the cornea |
| keratoplasty | corneal transplant |
| enucleation | surgical removal of the eyeball |
| LASIK | laser procedure that reshapes the cornea to correct refractive errors |
| fluorescein angiography | imaging the blood vessels of the retina |
| ophthalmoscope | instrument used to visualize the internal structures of the eye |
| tonometer | instument used to measure intraocular pressure |
| snellen | screening test for distance visual acuity(far vision) |
| intraocular | pertaining to within the eye |
| ophthalmologist | physician who studies and treats disorders of the eye |
| optic | pertaining to vision |
| optometrist | a health professional who measures vision and fits for glasses |
| visual acuity | shapness of vision |
| pinna or auricle | external structure that directs sound into the ear canal |
| auditory or ear canal | airway or tube that directs soundwaves to the tympanic membrane |
| cerumen | ear wax |
| tympanic membrane | membrane at medial end of canal that vibrates when hit by soundwaves, transmitting sound to the ossicles(AKA ear drum) |
| ossicles | three tiny bones in the middle ear cavity that transmit sound to the cochlea |
| eustachian tube | duct that connects and drains the middle ear cavity into the pharynx |
| inner ear | structures within the temporal bone (semicircular canals, and cochlea) |
| cochlea | organ that receives and interprets the sound waves(sensory organ for hearing) |
| semi circular canals | structure that contains the labyrinth, or the sensory organ for balance |
| auditory nerve | nerve that carries the sense of hearing to the brain(AKA vestibulocochlear nerve) |
| labyrinthitis | inflammation of the inner ear or "labyrinth" |
| vertigo | sense of room spinning and being off balance |
| otalgia | ear pain |
| otosclerosis | stiffness in one of the ossicles resulting in hearing oss |
| meniere disease | inner ear disorder resulting in vertigo, tinnitus, and hearing loss |
| otitis externa | inflammation of the ear canal, AKA swimmers ear |
| tinnitus | ringing in the ears |
| otitis media(OM) | inflammation of the middle ear, AKA ear infection |
| presbycusis | hearing loss secondary to old age |
| cochlear implant | hearing device that is surgically inserted, that interprets soundwaves and stimulates the auditory nerve to create hearing |
| myringotomy | incision into tympanic membrane |
| tymponoplasty | surgical repair of the structures of the middle ear |
| tympanostomy | surgical opening in the tympanic membrane, AKA tubes |
| audiogram | record of hearing |
| audiometry | measurement of hearing |
| audiometer | instrument used to measure hearing |
| otoscope | instrument used for visual exam of the ear canal and tympanic membrane |
| tympanometry | measurement of the movement of the tympanic membrane |
| audiologist | one who specializes in the study of hearing |
| otolaryngologist(ENT) | physician who studies and treats diseases of the ears, nose, and throat |
| optic nerve | carries visual impulses from the retina to the brain |
| ophthalmalgia | pain in the eye |
| hyperopia | farsightedness |
| myopia | nearsightedness |
| blepharoplasty | surgical repair of the eyelid |
| corneal | pertaining to the cornea |
| lacrimal | pertaining to tears |
| nasolacrimal | pertaining to the tear duct the drains into the nose |
| ophthalmic | pertaining to the eye |
| optic | pertaining to vision |
| retinal | pertaining to the retina |
| aural | pertaining to the ear |