Cataracts

5 Written Questions

1. - produces dilation of the pupil and constriction of blood vessels
   - eye drops for a client scheduled for cataract surgery
2. - may result from long-term exposure to radiation
3. - constrict the pupil
4. - an opacification (clouding) of the lens of the eye
   - significantly interfere with light transmission to the retina
   - interfere the ability to perceive images clearly
   - mostly develop as age => proteins clump => reduce the light transmission to the retina => opacification
5. - Age, Genetics
   - Environmental and lifestyle factors
   - long term exposure to sunlight (UVB rays)
   - cigarette smoking and heavy alcohol consumption
   - Eye trauma, exposure to heat or radiation
   - Diabetes Mellitus
   - systemic or inhaled corticosteroids

4 Multiple Choice Questions

1. - the entire lens and its surrounding capsule may be removed
   - rarely used today
   1. Radiation cataract
   2. extracapsular extraction
   3. Traumatic cataract
   4. intracapsular extraction
2. - decrease intraocular pressure
   1. osmotic diuretic
   2. miotic eye drop
   3. mydriatic eye drop
   4. Traumatic cataract
3. - may result from an injury to the eye
   1. Traumatic cataract
   2. Radiation cataract
   3. Congenital cataract
   4. Secondary cataract
4. - rare, less than 1%
   - loss of vitreous humor
   - corneal edema
   - increased intraocular pressure
   - hemorrhage
   - inflammation of infection
   - retinal detachment
   - displacement of the implanted lens
   1. Risk factors of cataract
   2. Complication of cataract surgery
   3. Congenital cataract
   4. Radiation cataract

4 True/False Questions

1. Congenital cataract → - may result from an injury to the eye

   True        False

2. extracapsular extraction → - the entire lens and its surrounding capsule may be removed
   - rarely used today

   True        False

3. Secondary cataract → - may result from an injury to the eye

   True        False

4. Post-surgery opacification of the remaining posterior capsule → - rare, less than 1%
   - loss of vitreous humor
   - corneal edema
   - increased intraocular pressure
   - hemorrhage
   - inflammation of infection
   - retinal detachment
   - displacement of the implanted lens

   True        False