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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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1. Corneal sensation:
a. is always decreased in neurofibromatosis
b. corneal hyperaesthesia is a form of diabetic sensory
neuropathy, and is seen in patients with proliferative
diabetic retinopathy
c. neuropathic keratopathy is a contraindication for
performing laser panretinal photocoagulation in eyes
with proliferative diabetic retinopathy
d. is reduced following herpes zoster keratitis
e. is reduced by prolonged hard contact lens wear
2. Pigmentary glaucoma:
a. typically occurs in patients from 20 to 50 years of age
b. there is often a positive family history of pigmentary
glaucoma
c. the onset is usually rapid with corneal oedema and
blurring of vision
d. pigmentary glaucoma is commonly caused by diabetes
mellitus
e. is often seen in high myopes with shallow anterior
chambers
3. In central retinal vein occlusion:
a. there may be a reversible shallowing of the anterior
chamber following vein occlusions, sufficient to cause
angle closure glaucoma
b. neovascular glaucoma usually develop within five
weeks of the development of central vein occlusion
c. the neovascular glaucoma that occurs secondary to
occlusion of the central retinal vein is best treated by an
iridectomy
d. neovascular glaucoma is best treated with cycloplegic
agents and steroid
e. the pupillary light reflex is not useful in the assessment
of retinal ischaemia
4. In glaucoma:
a. visual field loss may be aggravated by systemic
hypotension
b. an arcuate scotoma can be increased by artificial
elevation of the intraocular pressure
c. size and depth of cupping of the disc is always related
to the field defects
d. there may be arteriorsclerotic changes in nutrient
vessels 1-2 mm behind the optic nerve head
e. nasal step usually precedes arcuate scotoma
5. Pilocarpine is:
a. a lactone of pilocarpine acid
b. a contractor of ciliary muscle and sphincter
c. more effective as its concentration is increased
d. useful in the treatment of malignant glaucoma
e. the first line of treatment of open angle glaucoma in 30
years old
6. Chronic retinal detachments:
a. are usually mobile
b. may show high water marks
c. are associated with retinal cysts
d. may be associated with subretinal fibrosis
e. causes shrinkage of the globe
7. Proliferative vitreoretinopathy:
a. is an uncommon cause of failure in retinal detachment
surgery
b. Grade C may involve all 4 quadrants
c. Grade D2 implies that the optic disc is visible
d. is more commonly with larger retinal tear
e. is unlikely to be helped by surgery
8. Pulsation of orbital contents may occur in:
a. orbital varix
b. carotid cavernous fistula
c. neurofibromatosis
d. thyrotoxicosis
e. blow out fracture of the orbital roof
9. Angoid streaks are associated with:
a. sickle cell anaemia
b. pseudoexfoliation
c. Marfan's syndrome
d. myopic degeneration
e. tuberous sclerosis
10. With regard to trauma:
a. in a Le Fort type I fracture, fracture lines are found
through the maxilla, orbital floor and lateral wall of the
orbit
b. following a blunt injury with hyphaema some degree of
angle recession will be evident in approximately 5% of
cases
c. topical steroid drops should be used to suppress
collagenase activity during the second week following
an alkaline burn
d. the second commonest site of blow out fracture of the
orbit is the roof of the orbit
e. iron containing intraocular foreign bodies must be
removed within 12 hours of injury if siderosis bulbi is to
be prevented
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BRAVO
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Re: <a href=
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12.27.04 (3 years ago)
#2
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[
9. Angoid streaks are associated with:
a. sickle cell anaemia
b. pseudoexfoliation
c. Marfan's syndrome
d. myopic degeneration
e. tuberous sclerosis
sickle cell anaemia
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contagious
Credits:
818
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12.27.04 (3 years ago)
#3
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hey misty where r u???
i postedso many questions ofophthalmology
n u havent tried evenone question yaar??
expected some from u too
find n post me n help me toclear the mist in my mind
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BRAVO
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12.27.04 (3 years ago)
#4
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2. Pigmentary glaucoma:
a. typically occurs in patients from 20 to 50 years of age
b. there is often a positive family history of pigmentary
glaucoma
c. the onset is usually rapid with corneal oedema and
blurring of vision
d. pigmentary glaucoma is commonly caused by diabetes
mellitus
e. is often seen in high myopes with shallow anterior
chambers
ans is e,ref khurana page no.236
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decembermist
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12.28.04 (3 years ago)
#5
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 ok i need some time 
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decembermist
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Re: <a href=
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12.28.04 (3 years ago)
#6
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| contagious wrote: |
2. Pigmentary glaucoma:
a. typically occurs in patients from 20 to 50 years of age
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ans : true young males myopes, 20 to 50 years old
| Quote: |
b. there is often a positive family history of pigmentary
glaucoma |
ans : true
1/3 of the patients with pigment dispersion syndrome. Other risk factors include moderate myopia (nearsightedness) and African-American ancestry.
| Quote: |
c. the onset is usually rapid with corneal oedema and
blurring of vision |
ans : true
Many of these patients present to the ophthalmologist relating episodes of blurry vision, and sometimes eye pain, after exercise
The underlying cause is dispersion of pigment in the eye as a result of the posterior aspect of the iris rubbing against the zonules (microscopic fibers which hold the natural lens in place). This is known as iris-zonular touch. In fact, all patients with pigmentary glaucoma will necessarily have pigmentary dispersion syndrome prior to the onset of glaucoma (i.e., actual optic nerve damage and peripheral vision loss).
| Quote: |
d. pigmentary glaucoma is commonly caused by diabetes
mellitus |
ans : false (didnt get any ref reg this)
| Quote: |
e. is often seen in high myopes with shallow anterior
chambers |
ans; false
Pigmentary glaucoma is a form of open angle glaucoma
krukenberg;s spindle & sampaolesi's line's are seen in pigmentary glaucoma
treatment
use of miotics, laser peripheral iridotomy (PI), and argon laser trabeculoplasty (ALT). Miotics are topically applied (eye-drop) medications that constrict the pupil, thereby minimizing iris-zonular touch. A laser PI has been argued to release the pressure differential between the anterior and posterior chambers, thereby allowing the iris to bow forward away from the zonules. This procedure may, therefore, have the most benefit in terms of prevention of glaucoma. It may not be as valuable once the glaucoma is well-established (i.e., most of the pigment has rubbed off of the iris). ALT has been shown to have a very clear benefit in terms of pressure control in these patients. This procedure, therefore, may be more appropriate once the condition is well-established.
ref: khurana , parson & google
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decembermist
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Angoid streaks
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12.28.04 (3 years ago)
#7
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| contagious wrote: |
9. Angoid streaks are associated with:
a. sickle cell anaemia
b. pseudoexfoliation
c. Marfan's syndrome
d. myopic degeneration
e. tuberous sclerosis |
characterised by breaks in Bruch's membrane which resemble blood vessels.
Idiopathic:50% of patients with angioid streaks, no associated systemic disease is present.
Systemic association : Pseudoxanthoma Elasticum is the most common systemic disorder associated with angioid streaks.
PXE : HTN , anerysm , git bleeds & angioid streaks.
4 types of inheritance of PXE include 2 of which are autosomal dominant and 2 of which are autosomal recessive
Paget disease of bone
Ehlers-Danlos syndrome
Hemoglobinopathies
Homozygous sickle cell disease (Hb-SS)
Sickle cell trait (Hb-AS)
Sickle cell thalassemia (Hb-thal)
Sickle cell hemoglobin (Hb-SC)
Hemoglobin H (Hb-H)
Homozygous B-thalassemia major
Intermedia
Minor and hereditary spherocytosis
other systemic d/s
Abetalipoproteinemia
Acromegaly
Dwarfism
Diabetes mellitus
Hemochromatosis
Facial angiomatosis
Idiopathic thrombocytic purpura
Chronic familial hyperphosphatemia
Hypercalcinosis
Diffuse lipomatosis
Acquired hemolytic anemiaEpilepsy
Senile elastosis
Sturge-Weber syndrome
Trauma
Tuberous sclerosis
other conditions
hyperphosphataemia
lead poisoning
trauma
pituitary disorders and other intracranial disorders
ref :
ans : its a bit confusing . donno whether my list will confuse u pple!
all except b or c...
thinking b is not psuedoelasticum !!!
if its not Pseudoxanthoma Elasticum, the ans is b)
anyways wats the ans given !!
sorry 4 the confusing list 
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