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contagious
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Ophthalmology
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12.27.04 (3 years ago)
#1
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16. Retinal breeeeaks due to blunt trauma:
a. usually forms 7 days later
b. pigment epithleial proliferaiton 10 days post injury
. frequently associated with large oval breaks in quadrant opposite to impact
d. anterior dialysis is commonlly superonasal quadrant
e. arise due to compression of vitreous face
17. In rod monochromatism:
a. cones are totally absent
b. ERG at 30Hz is flt
c. dark adapted eye will have a cone response
18. Retinoschsis:
a. is commonly bilateral
b. is nearly always present in nasl quadrnat
c. juvenile type is frequently associated with macular schisis
d. split present in outer plexiform layer
e. inner layer breaks require treatment
19. Wernicke's encephalopathy:
a. large doses of vitamin B12 is useful
b. patients develop long-standing epilepsy
c. lesion is in the wall of the fourth ventricle
d. only occur in the alcoholic
e. puillary reflexes and extraocular muscles are affected
20. Primary hyperplastic persistent vitreous:
a. unilateral in otherwise healthy child
b. presents in neonatal period
c. causes cataract
d. causes angle closure glaucoma
e. duje to persistence of secondary and tertiary vitreous
21. Posterior inferior cerebellary artery thrombosis:
a. causes infarction of lateral medulla
b. painful trigeminal area on the same side
c. Horner's syndorme
22. Spasmus nutans:
a. fine jerky nystagmus usually monocular
b. rarely resolves spontaneously
c. present between 2 and 12 months of age
23. Aniridia may be associated with:
a. short arm of chromosome 11 deletion
b. naterior polar cataract
c. pannus
c. hypernephroma
c. optic disc hypoplasia
24. Damage to the optic nerve from head injury:
a. is usually in the intracranial part
b. result in optic atrophy nasally
c. usually causes an afferent pupillary defect in the other eye
d. cuases an altitudinal field defect
25. V phenomenon occurs in:
a. superior rectus weakness
b. superior oblqieu wekaness
c. too high insertion of medial wall
d. may be treated by sagitalisation of inferior oblique in appropriate cases
e. is always pathological
26. In severe diabetic retinopathy:
a. absence of cotton wool spots
b. increased foveal avascular zone
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decembermist
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aniridia
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12.28.04 (3 years ago)
#2
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| contagious wrote: |
23. Aniridia may be associated with:
a. short arm of chromosome 11 deletion |
yes :
Aniridia occurs:
#Autosomal disorder
#An identifiable chromosome deletion of the short arm of chromosome 11, including band p13
#Sporadic case
| Quote: |
| b. anterior polar cataract |
one line in khurana says , it can b a/w cataract 9not specified which one)
Crystalline lens
*Transparent or opaque
*Ectopia lentis
*Completely dislocated lens
yes :
Cornea
#Pannus
#Epithelial ulcers
#Arcus juvenilis
#Microcornea
yes :
Aniridia may be associated with Wilm's tumour; one in 40 Wilms' patients have aniridia.
Patients with aniridia who have a positive family history are not at an increased risk for Wilms tumor
Patients with aniridia without a positive family history have a 30% chance of developing Wilms tumor,
WAGAR syndrome :abnormalities of the chromosome 11 locus p13.
:Wilms' tumour
:Aniridia
:Genitourinary abnormalities
:mental Retardation with microcephaly
| Quote: |
| e. optic disc hypoplasia |
yes:
Fundus:
>Optic nerve hypoplasia
>Macular reflex dull
>Glaucomatous cupping
ans : b or all correct !!!
Aniridia may be part of a global defect in the development of the anterior segment of the eye called mesodermal dysgenesis.
patient presents with the following problems:
Absence of iris
Nystagmus
Strabismus
Reduced vision
other Physical findings:
<Nystagmus
<Strabismus
<Photophobia
<Anterior chamber
Best judged with a slit lamp microscope
Configuration dependent upon the position of the crystalline lens
<Iris
Complete absence on oblique illumination
Hypoplasia with irregular pupillary margins (atypical coloboma of pupil)
Root of the iris visible on gonioscopy
<Angle of the anterior chamber - Trabecular meshwork may be partially or completely covered by the iris stump.
<Vitreous - Usually normal
<Intraocular pressure :Normal or Increased
<Vision - Usually about 20/200 or less
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decembermist
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spasmus nutans
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12.28.04 (3 years ago)
#3
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| contagious wrote: |
22. Spasmus nutans:
a. fine jerky nystagmus usually monocular
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yep : its more marked in one eye (khurana says)
| Quote: |
| b. rarely resolves spontaneously |
false :
resolves spontaneously between 2 and 8 years of age.
| Quote: |
| c. present between 2 and 12 months of age |
yes :
Most cases begin between age 4 months and 1 year
Spasmus nutans:
Spasmus nutans involves a triad of symptoms which includes horizontal, vertical, or pendular nystagmus (fine, rapid jerking of the eyes back and forth, and from side to side), head nodding (AP,lateral or rotatory, and head tilting.
Rarely, symptoms like those of spasmus nutans may be produced by tumors in the optic chiasm or third ventricle of the brain.
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BRAVO
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12.28.04 (3 years ago)
#4
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WHAT IS Spasmus nutans DUE TO - 
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decembermist
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12.28.04 (3 years ago)
#5
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its a kind of nystagmus
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