Uploaded by ahmed asus

4 5773863860456917252

advertisement
Microbiology:
?Bacteria grows in which pH
4.6
7.0
7.2
9.0
:Cold sterilization is
Gamma radiation
Ice water sterilization
How to sterilize operating theatre
-water and soap
-Fugmentaion with formaldehyde.
-carbonic acid gas
-ethylene gas
What is used to kill bacterial spores
Alcohol 90%
glutaraldehyde
?
?What treatment in giardiasis causes uveitis
Metronidazole
Amohotericin B
Isonizazid, ridampicin
Pharmacology:
?Which is not antihistamine or mast cell stabilizer
✔ Ketorolac
Olopatadine
Lodoxamide
Ketotofen fumarate
:Which has longest duration of action
Lidocaine
✔ Bupivocaine
Procaine
?Which cause follicular conjunctivitis
Carbachol
Alphagan
Timolol
:Steroids cause all except
Ptosis
Cataract
✔Scleral thinning
Infection
Pilocarpine mechanism of action
?Which is not anitiviral
Aciclovir
✔ Flucytosine
Vidarabine
:Betaxolol is
✔ Beta 1 blocker
Beta 2 blocker
Alpha agonist
Which one is false regarding alphagan
✔ Nonselective alpha agonist
Decrease aqueous production
Can be given with timolol
:Which is not Amohotericin side effect
Diabetes
Cardiac arrest
GI upset
Thrombocytopenia
CAI can not be given in except :
-chronic liver failure
-nephrolithiasis
-with digoxin
-with diuretics
Which of those aminoglycosides is more resistant to bacteria?
Genta
Amikacin
Tobra
Kanamycin
Which of thoses antibiotics is the most lipophilic?
Pharmacokinetics, what increase absorbtion of the drop:
High lipid solubility
High PH
Low viscosity
After viterectomy:
-it is 10% of it is water
-antibiotics and vegef can spread between vitrous and AC
Anti VEGEF r:
-glycoprtiens
-has 9 monomers
-affect venules
Optics:
:Lensmeter goes with which rule
Gaussian law
Badal law
Ficks law
Another Q about Lensmeter and bifocals
?Which does not have prism
Indirect ophthalmoscope
Spectacle lens
Operating microscope
?D x180 what is the prescription4.00+ & For a power cross of +1.00D x90
x 90 3.00- 4.00+
PCiol with 17D power and lens constant of 118, what will be the equivalent ACiol power
?with lens constant of 116
D15
D19
D20
D18
Blind spot on visual field is ___ degrees vertically and ___ degrees horizontally (
numbers)
Child with esotropia, 30 dp at distance and 45 dp at near.
With +3.00 he has 30 dp at near
With cyclorefraction he is +2.00
What is the prescription?
+1.75 OU
+2 OU add +1.50
+2 OU add +3
+2 OU add +2
How does accommodation occur
?Which one is false
✔Light rays travel the slowest in vacuum
?What is critical angle
?Which is false regarding indirect ophthalmoscope
✔ Shows real, magnified, upright images
:When u correct glasses for a myope
Image falls behind lens
Image falls in front of retina
✔Image falls on retina
Image falls behind retina
Visual acuity:
Most resolvable
Gap in C can be seen with most discernible
Anatomy:
What lies posterior to grey line:
Orbicularis oculi
Cilia
Mebomian gland
Parasympthatic nerves to pupil runs with:
Short ciliary nerve
Long ciliary nerve
?What synapses in ciliary ganglion
Nasociliary nerve
✔Pasrasympathetic fibers of CN3
:What does not form part of aqueous layer of tear film
✔Goblet cells
Gland of wolfring
Gland of Krause
Which one is true regarding optic nerve
Covered by CSF throughout its length
Carries second order neurons
Has longer intraorbital portion
What gives eyes their color
Melanocytes in iris Stroma
Difference btw RPE in macula and in periphery:
Thin, long, more melanosomes, large melanosome, more vili
Q about EOM:
Longest tendon
Bigger muscle
Muscle with no tendon
Longest muscle
What is wrong about BM:
Collagen 5
Acellular
Secreted by endothelium
What is true about iris:
Parasympthatic to dilator muscle
Sympthatic to constricter muscle
Q about CB:
-circular muscle lies anterior to longitudinal muscle
Q about difference in choroidal layers /vessels:
Fenestration
Leaky
Pericytes
RPE cells in fovea vs periphery:
Thin , long , large melanosomes , many melanosomes, many vili
Immunology:
What is chemotaxis?
?Which one is true regarding transplant rejection
Type 1 hypersensitivity reaction
Type 2 hypersensitivity reaction
Type 3 hypersensitivity reaction
Type 4 hypersensitivity reaction
Physiology:
When pupil is dilated:
Decrease diffraction
Increase chromatic abbaration
Depth of focus
Field of focus
Lacrimal reflex pathway
:Regarding aqueous
There’s no protein in aqueou
?What is not true regarding optical-geniculate pathway
Area 1,4,6 carry info from contralateral nasal retina
Upper field correspond to lower retina
?Which is true
✔ Refractive error cause fibrillary eye twitching
Difference between x and y cells:
Larger receptive field
Color
Parvocellular
Sclera is :
50% water
Has collagen 1 and 3
Vortex peirce sclera at equator
Choriocapilaries:
R fenestrated
Less pericytes:
Cornea is :
Longer horizontally than vertical
Anterior radius > posterior radius
Pathology:
Wound repair:
Episclera supply the scleral wound after injury
Iris stroma and epithelial don’t stimulate healing process
CB and choroid don’t regenerate
Iris melanoma:
Rarely mets
Giant cell, which is wrong:
FB has haphazard nucli arrangement
Totoun has annulus of nucli
Langanhans has horseshoe arrangement with surranoded lipid
:All true in lattice Degeneration except
✔ILM is continuous
Atrophy Of inner retina
Vitreous above it is liquified
Vitreous attach to edges of Degeneration
What is false about amyloid
Stain dark blue material in extracellular matrix
Dichromat birefringence
Stain orange with Congo red
:If conjunctiva is salmon colored, most likely
✔Orbital lymphoma
Lymphangioma
:What is false in diabetic retinopathy
✔Thin basement membrane
Outer Retinal hemorrhage
Microaneurysm
?Which has least metastasis from outside
Choroid
Optic nerve
Retina
Iris
:Keratoacanthoma is
Squamous cell carcinoma
Adenocarcinoma
Basal cell carcinoma
?What is not a feature of non-teratoMedulloepithelioma
Hyaline cartilage
?In congenital glaucoma, what is false
✔ Iris is inserted posteriorly
There’s mesodermal material in TM
Scleral spur is more anterior
Regarding follicular conjunctivitis, which is false
Affect inferior palpebral conjunctiva more
Has follicle of lymphocytes
Dome-shaped with central vessel
Caused by viruses
Episcleritis histology question:
-same pattern as nodules in Rhematoid arthirits
- histocytes around necrotic collagen
-necrobiotic granulomatous.
Neuroblastoma:
Has homer rosette
Has ecchymosis
Has vascular element
Sebaceous cell carcinoma what is true
-sudan black stain
-pagetoid spread
Actinic keratosis Q
Pterygium question:
-disturb bowmen membrane
-elastotic degeneration
-actinic damage
Pyogenic granuloma
Cictricial pemphigoid Q
Nodular scleritis Q
Retinocytoma:
No mitosis
No necrosis
Has calcification
For lymphoproliferative speciemen , how it is processes?
-fresh
-frozen
-formalin
Basal cell ca which is true:
-has thin cords and strands of tumor cells on fibrotic stroma.
Download