Ophthalmology Flashcards Preview

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Flashcards in Ophthalmology Deck (35):
1

OD means

Right eye

2

OS means

Left eye

3

OU means

both eyes

4

A well lit- environment

Photopic

5

a dark environment

Scotopic

6

Disruption of the corneal epithelium and exposures of the corneal stroma

Corneal Ulceration

7

application of fluorescein dye to the ocular surface which appears at the nares. This is a test of nasolacrimal patency

Positive Jones Test

8

Application of fluorescein dye to the ocular surface and subsquent appearance of aquous humor leaking through dense flurocine stain. Test confirms corneal perforation.

Positive Seidel Test.

9

defined as a breakdown of the blood ocular barrier

Uveitis

10

Vision loss that occurs from optic nerve damage as a result of high intraocular pressure

Glaucoma

11

all extra ocular structures that support and are associated with the eyeball.

Adnexa

12

abnormally small, shrunken eye. Typically result of chronic/severe ocular inflammation

Phthisis bulbi

13

inflammation of the eyelid

Blepharitis

14

Abnormal enlargement of the eyeball due to glaucoma.

Buphthalmos

15

Mirror like reflection of lightfrom the surface of the eye. this reflection becomes disturbed when the surface is irregular.

Specular reflection

16

new blood vessel growth into the cornea. (Classic sign of keratitis)

Corneal neovascularization.

17

Protein suspended in the anterior chamber that becomes evident when a narrow, bright and focused light source is directed at the eye.(pathognomonic sign of uveitis, graded on a scale of 0-4+)

Aqueous flare

18

Blood in the anterior chamber(supportive of uveitis or bleeding disorder)

Hyphema

19

alternating color of the iris of one or between eyes.(normal finding)

Heterochromia iridis

20

small constricted pupil

Miosis

21

Large dilated pupil

Mydriasis

22

360 degree posterior synechia such that the iris bulges forward and contours to a doughnut-like shape.(common sequela of uveitis and is a risk factor for glaucoma)

Iris bombe

23

Adhesion between iris and lens

posterior synechia

24

calcium and phosphate crystals. Sign of vitreal degeneration

astroid hyalosis

25

separation of the inner, 9-layer 'neruosesory retina' from outermost layer of the retina, the pigmented epithelium

Retinal detachment

26

caused either by pulling or tearing forces, pulling is usually caused by scar tissue contraction. usually caused by trauma.

Rhegmatogenous retinal detachement

27

caused by disruption of the blood retinal barrier and hematogenous leakage/infiltration of potential space between neurosensory retina and the retinal pigmentedepithelium.

Non-rhegmatogenous retinal detachment

28

Palpebral reflex

CN V (afferent)
CN VII (efferent

29

Menace response

CN II (Afferent)
CN VII (Efferent)
Cortical(learned behavior)

30

Pupillary Light Reflex(PLR)

CN II afferent
CN III(oculomotor) Efferent

31

Dazzle Reflex

CN II afferent
CN VII efferent

32

Oculocephalic reflex (tracking the head back an forth)

Intact CN II, peripheral central vestibular components, CN III, IV, and VI.

33

Corneal reflex

CN V (opthalmic branch)afferent
CN VII efferent

34

Minimum data base for eye procedures

Schirmer tear test I, Fluorecein stain, tonometry.

35

What drug do you use for dilation of the eye for a fundic exam?

Tropicamide