Lecture 3.1 picture descriptions (incl. in 3%) Flashcards
1) What is ptosis?
2) List potential causes
3) What can cause senile ptosis?
1) Drooping upper eyelid
2) Myasthenia gravis, damage to CN3, and Horner’s syndrome, congenital
3) A weakened muscle, relaxed tissues, and the weight of herniated fat
1) Define entropion. Who is it common in?
2) What does this cause?
3) How do you check for less obvious entropion?
1) An inward turning of the eyelid margin, more common in the elderly
2) Lower lashes are often invisible when turned inward and irritate the conjunctiva and lower cornea.
3) Have pt squeeze eyelids together, then open them
1) What is ectropion and who it’s most common in
2) What does this cause?
1) Outward turning of the lower eyelid margin exposing palpebral conjunctiva; common in older ppl
2) When punctum is outward, eye no longer drains well, causes tearing.
1) What is exophthalmos?
2) What is it a sign of?
1) When eyes protrude from the socket (often due to lid retraction)
2) Grave’s (usually bilateral, can be unilateral)
1) What is a pinguecula? What is it seen in?
2) What is episcleritis? What is it seen in?
1) A harmless yellow triangular node in the bulbar conjunctiva on the side of the iris
-Common in aging, usually starts on nasal side
2) Localized ocular inflammation of the episcleral vessels; may appear movable and may be nodular (or just may be red).
-Seen in RA, Sjorgen syndrome, and Herpes zoster
1) What is a stye? What usually causes it?
2) What is its cause at the inner margin?
3) What about at the outer margin?
1) A painful, tender, red infection at the inner or outer margin of the eyelid, usually from Staphylococcus aureus 2) From an obstructed meibomian gland
3) From an obstructed eyelash follicle or tear gland)
1) What is a chalazion?
2) How is it different from a stye?
1) A subacute nontender, usually painless, nodule caused by a blocked meibomian gland.
2) May become acutely inflamed but, unlike a stye, usually points inside the lid rather than on the lid margin.
What is xanthelasma?
Yellow plaques along lower eyelids
1) Define blepharitis and its cause
2) What variant exists?
1) A chronic inflammation of the eyelids at the base of the hair follicles, often from S. aureus.
2) A scaling seborrheic variant
1) What is a corneal arcus?
2) Who is it seen in?
3) What does it suggest?
1) A thin grayish white arc or circle not quite at the edge of the cornea.
2) Accompanies normal aging but also seen in younger adults, especially African Americans.
3) In young adults, suggests possible hyperlipoproteinemia. Usually benign
1) What is a Kayser-Fleischer Ring?
2) What do pts with this condition often present with?
1) A golden to red brown ring, sometimes shading to green or blue, from copper deposition in the periphery of the cornea found in Wilson disease.
2) Patients present with liver disease, renal failure, and neurologic symptoms of tremor, dystonia, etc
1) What is a pterygium?
2) What may occur? Can pterygium affect vision?
1) A triangular thickening of the bulbar conjunctiva that grows slowly across the outer surface of the cornea, usually from the nasal side.
(visually, it appears as if sclera was growing onto cornea, even if that’s not what’s happening)
2) Reddening may occur. May interfere with vision as it encroaches on the pupil
1) What are cataracts?
2) What are risk factors for cataracts?
3) What are nuclear cataracts?
4) What are peripheral cataracts?
1) Opacity of the lenses visible through the pupal
2) Older age, smoking, diabetes, corticosteroid use.
3) A nuclear cataract looks gray when seen by a flashlight. If the pupil is widely dilated, the gray opacity is surrounded by a black rim.
4) Produces spoke-like shadows that point- gray against black, as seen with a flashlight, or black against red an ophthalmoscope. A dilated pupil facilitates this observation.
What is the triad of Horner’s syndrome symptoms? What causes Horner’s?
1) Ptsosis
2) Miosis
3) Anhidrosis
-Sympathetic pathway disruption
1) What is the pattern of redness in conjunctivitis?
2) Is it painful?
1) Conjunctival injection, diffuse dilatation of conjunctival vessels with redness that tends to be maximal peripherally
2) Mild discomfort rather than pain
1) What is the pattern of redness in subconjunctival hemorrhage?
2) Is it painful?
1) Leakage of blood outside of the vessels, producing a homogeneous, sharply demarcated, red area that resolves over 2 weeks
2) No pain at all