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Purple Module
Purple Module Eye
| Question | Answer |
|---|---|
| accommodation | Adjustment of the eye far various distances so that images fall on the retina. |
| achromatopsia | Severe congenital deficiency in colour perception - complete colour blindness. |
| amblyopia | Lazy eye syndrome |
| ametropia | Error in reflection causing poor focus. |
| antiglaucoma agents | Decrease aqueous humor production by constricting the pupil to open the angle between the iris and cornea. |
| astigmatism | Defective curvature of the cornea or lens. |
| blepharoptosis | Prolpase of the eyelid. |
| blepharoplasty | Surgical repair of the eyelid. |
| cataracts | Opacities on the lens or capsule that encloses the lens, causing loss of vision. |
| chalazion | Small hard tumor developing on the eyelid. |
| ciliary muscles | Muscles which relax/constrict to alter the shape of the lens, allowing rays to focus on the retina. |
| conjunctivitis | Inflammation of the conjunctiva producing red or pink eye. |
| convergence | Medical movement of both eyeballs so they are directed at the object. |
| corectasis | Dilation of the pupil. |
| cornea | The clear, transparent portion of the sclera - anterior to the lens. |
| cyclodialysis | Formation of an opening for draining of aqueous humor in glaucoma. |
| cloplegia | Agents which paralyse ciliary muscles, causing dilation of the pupils. |
| dacryocystography | Radiographic imaging procedures of the nasolacrimal (tear) glands and ducts. |
| dacryocystorhinostomy | Creation of an opening into the nose for draining of tears. |
| dacryorrhea | Flow of tears. |
| diopter | Measurement of refractive error. |
| ectropion | Eversion or outward turning of the edge of the lower eyelid. |
| electronystagmography | Assessing and recording eye movements with electrical activity of the extraocular muscles. |
| emmetropia | Correct vision. |
| entropion | Inversion or inward turning of the edge or the lower eyelid. |
| enucleation | Removal of the eyeball from the orbit. |
| epiphora | Abnormal overflow of tears. |
| esotropia (ST) | Inward turning of the eye. |
| exotropia (ET) | Outward turning of the eye. |
| evisceration | Protrusion of one or both eyeballs. |
| fluorescein angiography | Assesses blood vessels and their leakage in and under the retina after fluorescein dye injection. |
| glaucoma | Accumulation of aqueous humor in the eye. |
| gonioscopy | Examination of the angle of the anterior chamber to diagnose and manage glaucoma. |
| hordeolum | Swelling of one of the several sebaceous glands of the eyelid; also called a stye. |
| hyperopia | Farsightedness. |
| intracapsular extraction | A cold metal probe to remove cataracts. |
| iridectomy | Excision of the iris. |
| iritis | Inflammation of the iris. |
| keratocentesis | Surgical puncture of the cornea. |
| lacrimal | Pertaining to a tear. |
| metamorphopsia | Visual distortion of objects. |
| mydriatics | Drugs that disrupt parasympathetic nerve supply causing the pupil to dilate. |
| myringoplasty | Reconstruction of the ear drum. |
| nyctalopia | Impaired vision in dim light; night blindness. |
| nystagmus | Involuntary eye movements that may appear jerky and reduce vision. |
| opaque | Substance that does not allow the passage of light; not transparent. |
| ophthalmic decongestants | Constrict the small arterioles of the eye, decreasing redness and relieving conjunctival congestion. |
| ophthalmic moisturizers | Smoothe dry eyes due to environmental irritants and allergens. |
| ophthalmodynamometry | Visual examination of the interior of the eye with an ophthalmoscope. Has a light and adjustable lenses. |
| ophthalmoplegia | Paralysis of the eye. |
| Optometrist | One who specializes in eye measurements. |
| orthoptic training | Exercises to improve eye movements or visual tracking, using training, tinted or prism glasses. |
| otic analgesics | Provide temporary from relief from pain and inflammation associated with otic disorders. |
| papilledema | Edema and hyperemia on the optic disc usually associated with increased ICP; also chocked disc. |
| phacoemulsification | Treating cataracts by using ultrasonic waves to disintegrate the cloudy lens, then aspire and remove. |
| photophobia | Unusual intolerance & sensitivity to light. |
| photopigments | Light-sensitive pigment in the retinal cones and rods that absorbs light and initiates the visual process; also called visual pigment. |
| presbyopia | Form of farsightedness associated with aging. |
| radial deratotomy | Incision of the cornea for treatment of nearsightedness or astigmatism. |
| refractive | Ability to bend light rays as they pass from one medium to another. |
| retinitis pigmentosa | Chronic progressive disease of degeneration of the retina + atrophy of the optic nerve. |
| retinopathy | Any disorder of retinal blood vessels. |
| retinoscopy | Evaluation of refractive errors by projecting a light into the eyes to determine the movement of reflected light rays. |
| sclero | The white of the eye - a tough, fibrous tissue that serves as a protective shield. |
| sclerostomy | Surgical formation of an opening in the sclera. |
| strabismus | One eye is misaligned with the other or out of synchromy. |
| sty(e) | A localized circumscribed inflammation of the sebaceous gland of the eyelid. |
| tonometry | Evaluation of ICP by measuring the resistance (of the eyeball) of an applied force. |
| trachoma | Chronic, contagious form of conjunctivitis. Common in southwestern US - leads to blindness. |
| tuning fork test | Evaluate sound conduction, using a vibrating tuning fork. |
| visual acuity test | Determines the smallest letters that can be read on a standardized chart from 20 feet. |
| visual field | Area within which objects may be seen when the eye is in a fixed position. |
Created by:
Barbara Ross
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