CH12: Vision

Question 1

How far should a patient place a Jaeger chart in front of a patient (p. 250)

Answer 1

14 inches

Question 2

Arcuate scotoma extending from the blind spot and sweeping around the macula to end in the horizontal line at the nasal equator (p. 253)

Answer 2

Bjerrum field defect

Question 3

Winged extensions from the blind spot (p. 253)

Answer 3

Siedel scotoma

Question 4

Changes of the lens to this sugar causes highosmotic gradient with swelling and disruption of the lens fibers (p. 253)

Answer 4

Sorbitol

Question 5

rutpture of an intracranial aneurysm or AVM with high intracranial pressure (p. 253)

Answer 5

Terson syndrome

Question 6

condition wherein there is an abnormality in the chiasmatic decussation (p. 256)

Answer 6

Albinism

Question 7

Percent of fibers of the opic tract terminating in the lateral geniculate nucleus of the thalamus (p. 256)

Answer 7

80%

Question 8

Laminae of optic tract terminating in the LGN (p. 256)

Answer 8

1, 4, and 6

Question 9

Anterior choroidal artery artery occlusion pattern of blindness (p. 256)

Answer 9

Contralateral quadruple sectoranopia

Question 10

Posterior choroidal artery occlusion pattern of blindness (p. 256)

Answer 10

Contralateral homonymous horizontal sectoranopia

Question 11

Most often sign of diabeetes mellitus, sometimes appearing before the usual clinical manifestations of the disease (p. 257)

Answer 11

Microaneurysms

Question 12

superficial or deep retinal hemorrhage show a central spot which is caused by an accumulation of white blood cells, fibrin, histiocytes (p. 258)

Answer 12

Roth spot

Question 13

Represents the terminal swellings of interrupted axons in areas of inner retinal opacification resulting from ischemia (p. 258)

Answer 13

Cytoid bodies

Question 14

Pale yellow spots that are difficult to distinguish from hard exudates except when they occur alone (p. 258)

Answer 14

Drusen or colloid bodies

Question 15

Transient monocular blindness (p. 259)

Answer 15

Amarousis fugax

Question 16

glistening white- yellow atheromatous particles seen in 40 of 70 cases of retinal embolism (p. 259)

Answer 16

Hollenhorst plaques

Question 17

Metamorphopsia is a common presentation, acuity is not impaored, maybe associated with corticosteroid use (p. 260)

Answer 17

Serous retinopathy

Question 18

Common cause is Bartonella henselae, presenting with retrobulbar neuritis (p. 260)

Answer 18

Chorioretinitis

Question 19

Most common infective lesion in retina of HIV- AIDS patients (p. 260)

Answer 19

Toxoplasma

Question 20

Drug noted to cause retinal degeneration and concentric restriction of the visual fields in almsot half of exposed patients (p. 261)

Answer 20

Vigabatrin

Question 21

Cancer associated retinopathy from atibodies against this protein which modulates rhodopsin kinase (p. 261)

Answer 21

Recoverin

Question 22

Monoclonal antibody against anti VEGF for wet form of age- related macular degeneration (p. 262)

Answer 22

Ranibizumab

Question 23

Monoclonal antibody for DM retinopathy (p. 262)

Answer 23

Bevasizumab

Question 24

T/F Acute optic disc swelling in a patient with severely reduced vision should not be attributed to pappiledema (p. 263)

Answer 24

TRUE

Question 25

Transient increase in blurring with exertion or exposure to heat (p. 265)

Answer 25

Uhthoff phenomenon

Question 26

Double ring sign in fundoscopy is indcative of (p. 267)

Answer 26

Optic nerve hypoplasia

Question 27

Syndrome: ON hypoplasia, cortical heterotropia, midline patterning deficits, esp HP axis (p. 267)

Answer 27

de Morsier syndrome

Question 28

How long after radiation will radiation- induced damage of optic nerve presnt? (p. 268)

Answer 28

18 months

Question 29

Most common cause of homonymous altitudinal hemianopsia (p. 269)

Answer 29

Occlusion of B posterior cerebral arteries

Question 30

Persistence of repetitive afterimages, similar to the appearance of celluloid movie strip (p. 270)

Answer 30

Palinopsia

Question 31

Localization of palinopsia (p. 270)

Answer 31

R parietooccipital

Question 32

related to the vitreous tags taht rest on the retinal equator, maybe a residual evidence of retinal detachment (p. 271)

Answer 32

Moore lightning streaks

Question 33

Visual hallucinations in a blind patient, usually in the elderly (p. 271)

Answer 33

Charles Bonnet Syndrome

Question 34

Perception of transposition of images, flipped across the vertical or horizontal axis (p. 271)

Answer 34

Visual allesthesia