Misc. HA Midterm Flashcards
(48 cards)
Macular Degeneration
deterioration of the retina at the central part
Macular Degeneration types
Dry and Wet -
dry: most common, vessels do not leak
wet: d/t abnormal blood vessel growth that leaks fluid into the macula
How to test for Wet Macular Degeneration
Amsler Grid – wet = wavy lines
Glaucoma - types
Open and Closed
Open Glaucoma
d/t slow blockage of drainage canals, causes the angle where the iris meets the cornea is wide open
S&S of open glaucoma
1st = loss of peripheral vision
2nd = central vision
painless
Closed Angle Glaucoma
EMERGENCY
sudden rise of IOP, closed/narrow angle, rapid, UNILateral headache –> send to ER
Pterygium
“surfers eye” – inTERferes with the cornea
Meibomian glands
sebacious glands that make tears
blockage = chalazion
Cataract - what is it and 1st symptom
Clouding of the lens
1st symptom = difficulty driving at night
painless, blurry vision
MAY lack red light reflex
What does arcus senilis and xantheasma indicate?
High Cholesterol!
- Arcus Senilis (white ring around outter aspect)
- Xanthelasma (tags on inner eye lid)
Two types of hearing loss
Conductive and sensorineural
Sensorineural hearing loss
impaired transmission of sound
difficulty understanding
inner ear issue, issue with CN VIII
no corrective surgery
Conductive hearing loss
difficulty hearing
conduction of sound is impaired
Tests for hearing loss
Whisper, Weber, Rinne
Weber and Rinne results
Weber - tuning fork on forehead,
= normal, heard BETTER in affected ear, BC > AC
Rinne
(normal +)
(conductive loss = BC > AC in affected ear)
(sensorineural loss AC > BC)
Name 3 major sinuses
Ethmoid, maxillary, sphenoid
Name major glands in the mouth
stensen ducts (parotid gland opening) wharton ducts (submandibular gland opening)
Name major neck lymph nodes
Preauricular, ostauricular, tonsilar, submandibular, submental, anterior cervical, posterior cervical, occipital, supraclavicular
How does the thyroid work?
Hypothalamus secret thyroid releasing hormone (TRH) –> stimulates thyrotrophs in anterior pituitary to secrete TSH –> stimulates the thyroid follicular cells to release thyroxine (T4) and triiodothyronine (T3)
normal = not visible
Signs of hyPOthyroid
Queen anne’s sign = no lateral eyebrows
Dry brittle hair = hypothyroid
Slow and sluggish
Signs of hyPERthyroid
Fine thin hair
Onycholysis (in all nails, seperation of nail plate to nail bed)
Hyperactive, anxious
Exopthalmos
PMI increased amplitude
Sign of thyrotoxicosis?
Lid lag present = upper lid will lag behind eyes downward movement and sclera will be visible above the iris
Cone of light left and right
LEFT 7 o’clock
RIGHT 5 o’clock