Hearing & vision changes Flashcards
1
Q
Legal blindness
A
- Best correction in better eye of 20/200 or less
- Visual field of 20 degrees or less
2
Q
Visula impariment
A
- Best correction of better eye to 20/40 or less
3
Q
Low vision
A
- Impairment interferes with ability that can’t be cured with correction but could be managed
- Ex: DM retinopathy
4
Q
Presbyopia
A
IMpariment in near vision due to age
5
Q
Age related macular degeneration
A
- Loss of central vision and acuity
- Wet vs dry-
- Leading cause of visual loss in older adults
6
Q
Age related macular degeneration- Tx
A
- Referral to low vision clinic
- Anti-vascular endothelial growth factor
7
Q
Cataracts- Eti
A
- Clouding of lens due to aging
- Steroid exposure
- Loss of contrast and visual acuity
8
Q
Cataracts- Tx
A
Phacoemulsification- break down lens
- Extra-capsular therapy
9
Q
Glaucoma- Eti
A
- Group of diseases that damage optic nerve
- Posterior chamber
- Painless
- Assessed through tonometry
- Change in peripheral vision
10
Q
Glaucoma- Tx
A
- Medications (beta blockers), not curable
-
11
Q
Conductive hearing loss
A
- Ear canal, drum and middle ear
- 5% of hearing loss
- Trauma and disease
- Constant fluid in outer ear is sign of tumor- refer
- Loss of sound conduction to inner ear
12
Q
Sensorineural hearing loss
A
- Inner ear
- 95% of hearing loss
- Aging, noise, exposure, disease and genetics
13
Q
Conductive hearing loss- Outer ear - Etiologies
A
- Cerumen (dryer)
- Hair
- Squamous cell carcinoma
- Collapsed canal
- Pruritus
- Otitis externa
- Dermatitis
14
Q
Conductive hearing loss- middle ear - Etiologies
A
- Thinner, less vascular TM
- Tumors! Trauma!
- Otosclerosis
15
Q
Inner ear-
A
Sensory presbycusis: - Orgon of corti, due to loss of hair cells Neural presbycusis: - Loss of spiral ganglion cells Progressive and slow process
