Okaps flashcards - lens cataract

Question 1

what type of lenticonus in Lowe’s

Answer 1

posterior lenticonis

Question 2

alport’s syndrome

Answer 2

neprhopathy, deafness, anterior lencionus, and polar cataracts, micospherphakia, aminoaciduria

Question 3

mittendorf dot

Answer 3

reminant of tunica vascular lentis

Question 4

maternal infections assocaited with bilateral congenital cataracts

Answer 4

toxo, rubella, cmv, syphilis, varicella

Question 5

christmas tree cataract

Answer 5

myotonic dystrophy

Question 6

cataracts iwith atopic dermatitis

Answer 6

psc

Question 7

oil droplet cataracts

Answer 7

galactosemia

Question 8

body habitus of homocystinuria

Answer 8

tall, marfanoid status

Question 9

elsnig peralrs

Answer 9

migration of lens epithelial cells from periphery of lens through space between anterior and posterior capsule

Question 10

snowflake cataract

Answer 10

dm

Question 11

drugs to avoid in sickle cell

Answer 11

CAI, epipnephring, alpha agnoists, hyperosmotics, beta blockers ok.

Question 12

reactive foregn bodies

Answer 12

copper (>85% endophthamisi, <70% inert)

Question 13

congeneital iris hypochormia

Answer 13

horne’rs waardenberg’s hirschbrung’s

Question 14

acquired hypochromia

Answer 14

horner’s fuch’s iris atrophy, mets, JXG

Question 15

acquired iris hyperchormic

Answer 15

iris nevus, ICE, rubeosis, siderosis, hemosiderosis, meds

Question 16

how to differntiate ICE syndromes

Answer 16

Chandler: K edema, Iris atrophy: iris atrophy: broad PAS, ectropion uveae, iris holes, Cogan-Reese: iris nevus, corectopia

Question 17

what are koeppe nopdules

Answer 17

along pupillary border. Busacca: anteior surface iof iris in granulomatous uveitis. Berlin: in AC angle in uveitis.

Question 18

what is fuch’s adenoma

Answer 18

proliferation of type IV collagen.

Question 19

lens fibrs with nuclei

Answer 19

rubella, Lowe’s trisomy 13

Question 20

protens in lens

Answer 20

alpha: largest, 35%, beta: 55% crystlain, gamma: smallest, water insoluble correlates with cataracts

Question 21

Na, K concentration in lens

Answer 21

high K, low Na, inverse of aqueous.

Question 22

metabolism of lens

Answer 22

anaeboric by glycolysis.

Question 23

avg lens power

Answer 23

birth 37D, adult 20D

Question 24

2nd sight

Answer 24

lenitcur myopia due to increased index of refraction presbyopies can often read without spectacles

Question 25

vossius ring

Answer 25

ring of pigment on lens from iris.

Question 26

cataract with atopic dermatitis

Answer 26

ASC shiled like plaque

Question 27

findings of myotonic dystrophy

Answer 27

christmas tree cataract AD, chromosome 19, ptosis, lid lag, myotonia, testicular atrophy

Question 28

materials to get PCO

Answer 28

acrylic< PMMA

Question 29

deficiency of cystathione beta snthase

Answer 29

homocytstinuria, bilateral ectopia, lintus, blond tall, cardiomegaly, hypercoagulatbility, general anesthesia problems

Question 30

rx for homocystinuria

Answer 30

B6, cysteine, methionine restricted diet

Question 31

sulfite oxidase deficieicny

Answer 31

AR, molybdenum deficiency, brushfield’s spots, seizures

Question 32

hyperlysinemia

Answer 32

microspherophika, mental retard

Question 33

cohesive OVD

Answer 33

long hain, high MW, high surface tension

Question 34

Causes of PAC cataracts

Answer 34

Steroid, trauma, syphilis, rad, to, dm atopy RP, nf-2, phenothiazine a, myotonic dystrophy, refsum

Question 34

dispersive OVD

Answer 34

low MW, low surface tension

Question 35

Causes of asc cataract

Answer 35

5 As and a c

Aniridia, Alport, atopy, amiodarine, anticholinesterades, chlorpromazine