Advanced Health
Assessment Chapter 11 |
Study Guide, Practice
Questions & Exam
Review
|Guaranteed success|
, How is sight a double act? - Eye = converts light into modified electrochemical impulses
- Brain = converts impulses into pictures
Three cranial nerves - CN III: oculomotor
- CN IV: trochlear
- CN VI: abducens
Extraocular structures protects the eye and all of its internal structures
Eyebrows and eyelashes specialized hairs that protect the eyes
Eyelids protect and lubricate the eyes (small oil-producing glands line inner edge
keeping the eyes moist/clean)
Conjunctiva thin membrane covering the front of the eye (bulbar) and inner eyelids
(palpebral)
- produces mucus to lubricate eye
- permits movement of eyeball
Lacrimal glands tear ducts that continually release tears and protective fluids to clean,
lubricate, and moisten the eyes
Diagnostics comprehensive = dilated eye exam to look directly at retina and internal
structures
- post-dilation = mydriatic eye drops cause blurry vision/light sensitivity = give
pts sunglasses
Tonometry device used to measure introcular pressure (IOP)
glaucoma
Health history - cataracts
- glaucoma
- macular degeneration
- eye surgery (LASIK, cataract surgery, detached retina)
- family history
- health promotion
- current vision history
Cataracts clouding of the lens that causes blurry, decreased, or lost vision
Glaucoma buildup of IOP that damages the eye's optic nerve causing loss of peripheral
vision
Assessment Chapter 11 |
Study Guide, Practice
Questions & Exam
Review
|Guaranteed success|
, How is sight a double act? - Eye = converts light into modified electrochemical impulses
- Brain = converts impulses into pictures
Three cranial nerves - CN III: oculomotor
- CN IV: trochlear
- CN VI: abducens
Extraocular structures protects the eye and all of its internal structures
Eyebrows and eyelashes specialized hairs that protect the eyes
Eyelids protect and lubricate the eyes (small oil-producing glands line inner edge
keeping the eyes moist/clean)
Conjunctiva thin membrane covering the front of the eye (bulbar) and inner eyelids
(palpebral)
- produces mucus to lubricate eye
- permits movement of eyeball
Lacrimal glands tear ducts that continually release tears and protective fluids to clean,
lubricate, and moisten the eyes
Diagnostics comprehensive = dilated eye exam to look directly at retina and internal
structures
- post-dilation = mydriatic eye drops cause blurry vision/light sensitivity = give
pts sunglasses
Tonometry device used to measure introcular pressure (IOP)
glaucoma
Health history - cataracts
- glaucoma
- macular degeneration
- eye surgery (LASIK, cataract surgery, detached retina)
- family history
- health promotion
- current vision history
Cataracts clouding of the lens that causes blurry, decreased, or lost vision
Glaucoma buildup of IOP that damages the eye's optic nerve causing loss of peripheral
vision
