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OCULAR DISEASE RNH > 3 DISORDER OF CORNEA > Flashcards

3 DISORDER OF CORNEA Flashcards

1
Q

Which of the following is not belong to superficial lesions

  • Filaments
  • Pannus
  • Vascularization
A

Vascularization

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2
Q

Which of the following is not belong to superficial lesions

  • Punctate epithelial erosions
  • Lipid Deposition
  • Subepithelial infiltrates
A

Lipid Deposition

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3
Q

Which of the following is not belong to superficial lesions

  • Ulceration
  • Punctate epithelial keratitis
  • Epithelial edema
A

Ulceration

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4
Q

Which of the following is not belong to superficial lesions

  • Infiltrates
  • Superficial punctate keratitis
  • Filaments
A

Infiltrates

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5
Q

Which of the following is not belong to deep lesions

  • Infiltrates
  • Superficial punctate keratitis
  • Ulceration
A

Superficial punctate keratitis

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6
Q

Which of the following is not belong to deep lesions

  • Seidel test
  • Descemetocele
  • Punctate epithelial keratitis
A

Punctate epithelial keratitis

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7
Q

Which of the following is not belong to deep lesions

  • Lipid Deposition
  • Epithelial edema
  • Breaks in Descemet Membrane
A

Epithelial edema

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8
Q

generally an early sign of epithelial compromise

  • Subepithelial infiltrates
  • Punctate epithelial keratitis
  • Punctate epithelial erosions
A

Punctate epithelial erosions

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9
Q

Granular, opalescent, swollen epithelial cells, with focal intraepithelial infiltrates

  • Subepithelial infiltrates
  • Punctate epithelial keratitis
  • Punctate epithelial erosions
A

Punctate epithelial keratitis

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10
Q

tiny subsurface foci of non-staining inflammatory infiltrates

  • Subepithelial infiltrates
  • Punctate epithelial keratitis
  • Punctate epithelial erosions
A

Subepithelial infiltrates

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11
Q

is a non-specific term describing any corneal epithelial disturbance

  • Filaments
  • Superficial punctate keratitis
  • Epithelial edema
A

Superficial punctate keratitis

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12
Q

strands of mucus admixed with epithelium, attached at one end to the corneal surface

  • Filaments
  • Superficial punctate keratitis
  • Epithelial edema
A

Filaments

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13
Q

subtle cases may manifest with loss of normal corneal luster

  • Filaments
  • Superficial punctate keratitis
  • Epithelial edema
A

Epithelial edema

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14
Q

is a feature of chronic ocular surface irritation or hypoxia

  • Pannus
  • Superficial neovascularization
  • Epithelial edema
A

Superficial neovascularization

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15
Q

describes superficial neovascularization accompanied by degenerative subepithelial change extending centrally from the limbus

  • Pannus
  • Superficial neovascularization
  • Epithelial edema
A

Pannus

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16
Q

are focal areas of acute stromal inflammation composed of inflammatory cells, and cellular and extracellular debris including necrosis

  • Ulceration
  • Vascularization
  • Infiltrates
  • Folds
A

Infiltrates

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17
Q

refers to tissue excavation associated with an epithelial defect

  • Ulceration
  • Vascularization
  • Infiltrates
  • Folds
A

Ulceration

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18
Q

in Descemet membrane

  • Ulceration
  • Vascularization
  • Infiltrates
  • Folds
A

Folds

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19
Q

may follow chronic inflammation with leakage from corneal new vessels

  • Seidel test
  • Lipid Deposition
  • Breaks in Descemet Membrane
  • Descemetocele
A

Lipid Deposition

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20
Q

may be due to corneal enlargement (Haab striae in infantile glaucoma) or deformation

  • Seidel test
  • Lipid Deposition
  • Breaks in Descemet Membrane
  • Descemetocele
A

Breaks in Descemet Membrane

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21
Q

usually only develops when the ocular defences have been compromised

  • FUNGAL KERATITIS
  • BACTERIAL KERATITIS
A

BACTERIAL KERATITIS

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22
Q

is rare in temperate countries but is a major cause of visual loss in tropical and developing countries

  • FUNGAL KERATITIS
  • BACTERIAL KERATITIS
A

FUNGAL KERATITIS

23
Q

is a phylum of obligate intracellular one-celled parasites previously thought to be protozoa but recently reclassified as fungi

  • MICROSPOROIDAL KERATITIS
  • HERPES SIMPLEX KERATITIS
A

MICROSPOROIDAL KERATITIS

24
Q

developed with a cuboidal capsule and has a linear double-stranded DNA genome

  • MICROSPOROIDAL KERATITIS
  • HERPES SIMPLEX KERATITIS
A

HERPES SIMPLEX KERATITIS

25
HSV without previous viral exposure, usually occurs in childhood and is spread by droplet transmission, or less frequently by direct incolation * Primary infection * Recurrent infection
Primary infection
26
HSV reactivation in the presence of cellular and humoral immunity * Primary infection * Recurrent infection
Recurrent infection
27
yellow-white densely suppurative infiltrate * Candida keratitis * Filamentous keratitis
Candida keratitis
28
Agreyor yellow-white stromal infiltrate with indistinct fluffy margins. * Candida keratitis * Filamentous keratitis
Filamentous keratitis
29
dendritic or geographic keratitis associated with ACTIVE VIRUS replication. * EPITHELIAL KERATITIS * DISCIFORM KERATITIS
EPITHELIAL KERATITIS
29
dendritic or geographic keratitis associated with ACTIVE VIRUS replication. * EPITHELIAL KERATITIS * DISCIFORM KERATITIS
EPITHELIAL KERATITIS
29
dendritic or geographic keratitis associated with ACTIVE VIRUS replication. * EPITHELIAL KERATITIS * DISCIFORM KERATITIS
EPITHELIAL KERATITIS
30
It may be active HSV infection of keratocytes or endothelium, or a hypersensitivity reaction to viral antigen in the cornea. * EPITHELIAL KERATITIS * DISCIFORM KERATITIS
DISCIFORM KERATITIS
31
This rare condition is thought to result from active viral replication within the stroma, though immune-mediated inflammation plays a significant role. * NECROTIZING STROMAL KERATITIS * HERPES ZOSTER OPHTHALMICUS (HZO)
NECROTIZING STROMAL KERATITIS
32
The varicella-zoster virus (VZV) causes both chicken pox (varicella) and shingles (herpes zoster). * NECROTIZING STROMAL KERATITIS * HERPES ZOSTER OPHTHALMICUS (HZO)
HERPES ZOSTER OPHTHALMICUS (HZO)
33
VZV belongs to the same subfamily of the herpes virus group as the HSV and the two viruses are morphologically identical but antigenically distinct. * NECROTIZING STROMAL KERATITIS * HERPES ZOSTER OPHTHALMICUS (HZO)
HERPES ZOSTER OPHTHALMICUS (HZO)
34
A prodromal phase precedes the appearance of the rash. * Acute shingles * Interstitial keratitis * Cogan syndrome
Acute shingles
35
an inflammation of the corneal stroma without primary involvement of the epithelium or endothelium. * Acute shingles * Interstitial keratitis * Cogan syndrome
Interstitial keratitis
36
a rare systemic autoimmune vasculitis characterized by intraocular inflammation and vestibulo auditory dysfunction * Acute shingles * Interstitial keratitis * Cogan syndrome
Cogan syndrome
37
ubiquitous free-living protozoa commonly found in soil, fresh or brackish water and the upper respiratory tract. * Acanthamoeba * Onchocerciasis
Acanthamoeba
38
‘river blindness’ * Acanthamoeba * Onchocerciasis
Onchocerciasis
39
caused by infestation with the parasitic helminth Onchocerca 
volvulus * Acanthamoeba: *
Onchocerciasis:
40
caused by infestation with the parasitic helminth Onchocerca 
volvulus * Acanthamoeba * Onchocerciasis
Onchocerciasis
41
probably caused by a hypersensitivity reaction against staphylococcal exotoxins and cell wall proteins * Marginal keratitis * Phlyctenulosis
Marginal keratitis
42
usually a self-limiting disease presumed delayed hypersensitivity reaction to staphylococcal antigen; the most common systemic association is rosacea. * Marginal keratitis * Phlyctenulosis
Phlyctenulosis
43
a rare, idiopathic disease characterized by progressive circumferential peripheral, stromal ulceration with later central spread. * Mooren ulcer * Terrien marginal degeneration
Mooren ulcer
44
uncommon idiopathic thinning of 
the peripheral cornea. Presentation is usually after the 4th decade with initially asymptomatic peripheral corneal lesions * Mooren ulcer * Terrien marginal degeneration
Terrien marginal degeneration
45
occurs when there is loss of the trigeminal innervation to the cornea resulting in partial or complete anaesthesia * NEUROTROPHIC KERATOPATHY * EXPOSURE KERATOPATHY
NEUROTROPHIC KERATOPATHY
46
is the result of incomplete lid closure (lagophthalmos). 
present on blinking or gentle lid closure, but absent on forced lid closure. * NEUROTROPHIC KERATOPATHY * EXPOSURE KERATOPATHY
EXPOSURE KERATOPATHY
47
refers to the spectrum of ocular disease caused by lack of vitamin A, and is a late manifestation of severe deficiency. * XEROPHTHALMIA * CORNEAL ECTASIAS
XEROPHTHALMIA
48
a progressive disorder in which the cornea assumes a conical shape secondary to stromal thinning and protrusion. * KERATOCONUS * KERATOGLOBUS
Keratoconus
49
an extremely rare congenital condition in which the entire cornea is abnormally thin. * KERATOCONUS * KERATOGLOBUS
KERATOGLOBUS
50
The hallmark of _____ is central or paracentral stromal thinning, accompanied by apical protrusion and irregular astigmatism. * Keratoconus * Acute hydrops
* Keratoconus
51
Presentation is typically during puberty with unilateral impairment of vision due to progressive myopia and astigmatism, which subsequently becomes irregular. * Keratoconus * Acute hydrops
keratoconus

OCULAR DISEASE RNH (17 decks)

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