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22 Cards in this Set

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True or False: Reading for prolonged periods in dim light can be harmful to eyes
False: Only true in extreme circumstances. Reading in dim light is fine.
True or False: Children should be taught not to hold their books too close when reading, becaue doing so can harm their eyes
False: Children commonly hold books close to the eyes. Their eyes can accommodate easily and can keep near objects in sharp focus. In rare cases this is a sign of severe nearsightedness but this habit cannot cause nearsightedness.
True or False: Wearing glases that are too strong can damage eyes.
False: Glasses affect the light not the eye. However, an incorrect prescription can cause blurring, which causes discomfort and can cause headache.
True or False: Older people who may be having trouble seeng should not use their eyes too much because thhey can wear out sooner.
False: Normal sighted children commonly want to sit close to the TV and books. No harm is done to the eyes.
True or False: People with weak eyes should rest their eyes often to strengthn them.
False: Eyes cannot be warn out by seeing
True or False: In time, childern usually outgrow crossed eyes.
False: Crossed eyes in kids should always be considered serious and should be seen by ophthalmologist.
True or False: Contact lenses can correct nearsigtedness, so that eventually neighter contact lenses nor eyeglasses will be needed.
False: Only incorrectly fitted contact lenses can change the shape of the cornea to give the appearance of having corrected myopia. Intentionally fitting contact lenses incorrectly is reisky because permanent harm to the eyes has been known to result from improperly fitted lenses.
True or False: Children who have a problem learning to read are likely to have an eye coordination problem and can be helped with special exercises.
False: Poor eye coordination is a myth and a rip off.
True or False: A cataract can sometimes grow back after cataract surgery.
False: A cataract is an opacity of the lens of the eye and cannot grow back once the lens is removed. The posterior capsule of the lense may opacify when the lens is not completely removed but leaving the capsule is the preferred technique.
True or False: A cataract has to be "ripe" before surgery can be done.
False: Indication for cataract surgery rests largerly on the functional impariment caused by the cataract and not on any criteria used for the harvest.
True or False: Newarsighted people become farsigned as they age, and farsighted people can become nearsighted.
False: All individuals become presbyopic with age, regardless of their underlying refractive error.
True or False: In older people, a sign of helathy eyes is the ability to read newspaper without glasses.
False: The ability of an older preson to read without glasses indicates nothing more than myopia in one eye with reasonably good visual acuity. Nearsightedness could be caused by a cataract. Furthermore, the field of vision could be extremely constricuted, as in advanced glaucoma, or one eye could be completely blind.
True or False: People who wear glasses should have their vision checked every year to determine whether a change in prescription is needed.
False: As long an an indivisual is satisfied with the vision provided by their glasses, there is little reason to check for change.
True or False: Watching a bright television picture in a dimly lighted room can be hamful to the eyes if done for long periods of time.
False: The eye deals with light regardless of contrast. Some may find it more comfortable to turn the light on.
True or False: Ideally, all people should usese an eyewash regularly to clean their eyes.
False: The less eyewash put into the eye the better.
True or False: A blue eye shuld not be selected for transplantation in a brown eyed person.
False: Only the cornea can be transplanted, and it is colorless in all eyes.
True or False: In rare instances, a contact lens can be lost behind the eye and even work its way into the brain.
False: The conjunctiva prevents a contact lens from passing behind the eye.
True or False: A cataract is actually a film over the eye that can be peeled off with surgery.
False: A cataract is an imperfection in the transparency fo the nromal lens of the eye. If the transparency is affected to the point of significantly impairing a person's functional vision, all or most of the lens is removed.
True or False: Headaches are susually due to eye strain.
False: Headaches usually do not occur on an ocular basis.
5 potentially treatable blinding eye diseases:
cataract, glaucoma, diabetic retinopathy, macular degeneration, amblyopia in kids
4 potentially threatening systemic disorders that may involve the eye
DM, HTN, temporal arteritis, embilism from carotid or heart
3 tumor/life threatening disorders of the eye:
meningioma, aneurysms, MS