Eye pathology

Question 1

Presbyopia occurs in

Answer 1

older people with non-accommodating lenses

Question 2

Raccoon eyes after MVA

Answer 2

Basilar skull fractures

ear to ear

Question 3

Exophthalmos is infiltrated with

Answer 3

myxedema

Question 4

Blepharitis

Answer 4

infection of the eyelid

Question 5

BCC usually predelictation for

Answer 5

lower eyelid and medial canthus

Question 6

Conjunctival Hemorrhage tx

Answer 6

very common, no tx it will resolve but will change colors

Question 7

Pink eye bacteria?

Answer 7

H. Influenzae (matting in the morning)

Strep Pneumoniae

Question 8

Epido keratoconjunctivitis and swimming could be caused by

Answer 8

Epidemic Keratoconjunctivitis

Question 9

Ophthalmia neonatorum caused by and prophylaxis?

Answer 9

Gonococcal

Ceftriaxone

Question 10

Leading cause of blindness worldwide?

Answer 10

Chlamydia trachomatis

Question 11

Keratoconjunctivitis sicca and dry mouth could be caused by

Answer 11

Sjogren Syndrome

Question 12

Cyclosporin could treat idiopathic

Answer 12

dry eye

Question 13

Pterygium is vascularized conjunctival tissue that grows over the iris. Where does it grow?

Answer 13

From medial canthus

Question 14

Blue sclera could be due to

Answer 14

Osteogenisis imperfecta

Tyndall effect

Question 15

Corneal basement membrane does not regenerate true or false?

Answer 15

Descemet’s Membrane doesn’t regenerate

Question 16

Corneal Abrasion can be dx’d with

Answer 16

Fluorescein on eye then view through blacklight

Question 17

Corneal Ulcers usually caused by and tx’d with

Answer 17

Herpes Simplex, chinese character appearance under blacklight

you can spread this from towels gross

tx: acyclovir

Question 18

Acanthamoeba

Answer 18

can live on cornea

Question 19

Fusarium lives on

Answer 19

grass

the example shows fungus growing on cornea. Steroids will make this worse

Question 20

Cataracts occur in the

Answer 20

Lens

Question 21

Enucleated Lens?

Answer 21

cataracts

Question 22

Excavation of the optic nerve and progressive loss of visual field sensitivity

Answer 22

Glaucoma

Question 23

Congenital Glaucoma most frequent? Ocular emergency?

Answer 23

Primary open-angle

Primary closed-angle (ocular emergency)

Question 24

How can you see the fovea on ophthalmoscope?

Answer 24

ask pt to look directly at the scope

Question 25

Layers of the retina

Answer 25

Pigmented epithelium Photoreceptors External Limiting membrane Outer nuclear Outer Plexiform (cone and rod axons, horizontal cell dendrites, bipolar dendrites) Inner Nuclear (axons of bipolar cells and amacrine cells, dendrites of ganglion cells) Ganglion cells (nuclei of ganglion cells and displaced amacrine cells) Axons (nerve fibers from ganglion cells traversing retina to leave the optic disk) Internal limiting membrane (separates the retina from the vitreous)

Question 26

Layers of the retina

Answer 26

Pigmented epithelium Photoreceptors External Limiting membrane Outer nuclear Outer Plexiform (cone and rod axons, horizontal cell dendrites, bipolar dendrites) Inner Nuclear (axons of bipolar cells and amacrine cells, dendrites of ganglion cells) Ganglion cells (nuclei of ganglion cells and displaced amacrine cells) Axons (nerve fibers from ganglion cells traversing retina to leave the optic disk) Internal limiting membrane (separates the retina from the vitreous)

Question 27

Flame-shaped hemorrhages common in

Answer 27

Shaken baby syndrome or trauma

Question 28

AV Nicking, micor-aneurysms, cotton wool spots (infarction)

Answer 28

Hypertension

Question 29

What could cause retinal vascular occlusion?

Answer 29

Vasculitis (temporal arteritis, Takayasu Aortitis) Dissection Spasm (meth/amphetamines)

Question 30

Exudates out of the macular star and thickened arteries?

Answer 30

Hypertensive retinopathy

Question 31

Proliferative retinopathy could appear

Answer 31

5-15 years after onset of disease, often within 5 years of death from vascular causes eye looks like arteries forming the tree of life

Question 32

Non-proliferative retinopathy

Answer 32

Hemorrhage thickened vessels microaneurysms exudates

Question 33

Retinopathy of Prematurity (Retro-lental fibroplasia)

Answer 33

high oxygen tension (HMD)

Question 34

Retinitis looks black by optic disk

Answer 34

Histo Toxoplasmosis CMV Toxocara

Question 35

Toxocariasis can be caused by a dog because

Answer 35

dogs transmits gross larvae into your eye, can go through retina causing inflammation and injury

Question 36

Rhegmatogenous Retinal tear from trauma from collapse of

Answer 36

vitreous

Question 37

Non-rhegmatogenous is a retinal detachment in which

Answer 37

collection of fluid between the retina and the pigment epithelium occurring during choroiditis or melanoma

Question 38

Papilledema can show up as a choked disk and indicates

Answer 38

increased intracranial pressure can be from tumor neoplasm

Question 39

Retinoblastoma arise from

Answer 39

Immature retinal neurons

Question 40

Leukokoria (white eye) could indicate

Answer 40

Rb, can spread to the CNS

Question 41

is Rb inherited?

Answer 41

most are spontaneous and associated with osteosarcoma

Question 42

Rb can form _______ on histo

Answer 42

rosettes

Question 43

Most common primary malignancy of eye is

Answer 43

melanoma

Question 44

most common malignancy in the eye

Answer 44

metastatic carcinoma usually involving the uveal tract

Question 45

Mets of uveal tract melanoma???

Answer 45

Hematogenous spread usually to the liver

Question 46

most common malignancy in the eye

Answer 46

metastatic carcinoma usually involving the uveal tract can cause the pupil to retract

Question 47

Mets of uveal tract melanoma???

Answer 47

Hematogenous spread usually to the liver

Question 48

Tx of uveal tract melanoma?

Answer 48

Radiation or enucleation