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Ophthalmology, L29,30 occular trauma (blunt trauma)

 Ophthalmology, L29,30 occular trauma (blunt trauma) part1

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L29, 30 part 2,Ocular trauma, ophthalmology

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MCQ

1- All of the following occur in blow out fracture except:

  • Periorbital emphysema

  • Proptosis

  • Diplopia

  • Enophthalmos


2- Chemosis means....

  • Hematoma of eyelid

  • Edema of conjunctiva

  • Subconjunctival hemorrhage


3- Subconjunctival hemorrhage due to fracture base of skull is characterized by....

  • Occur immediately after trauma

  • Apex toward the cornea

  • Bright red


4- Blood staining of the cornea occur due to all except...

  • Increased IOP

  • Corneal edema

  • Hyphema

  • Injury to corneal endothelium


5- All are true about rupture sclera except...

  • The eyeball is pushed against the trochlea

  • Usual site is down and out

  • Associated with hypotony and diminished vision


6- About Hyphema, all are true except....

  • Means blood in anterior chamber

  • Treated by steroids and mydriatics

  • May be complicated by secondary glucoma

7- About iridodialysis, which is false?

  • Separation of iris at ciliary body

  • V- shaped tear

  • D-shaped pupil 

  • Monocular Diplopia


8- Mild trauma to iris cause ...

  • Mydriasis

  • Miosis

  • Paralysis of 3rd n


9- Ciliary body shock causes ...

  • Temporary myopia

  • Hypotony

  • Angle recession glucoma


10- About rupture choroid , which is true ?

  • Linear rupture

  • White sclera is seen through rupture

  • Usually asymptomatic


11- about Commotio retinae , all are true except....

  • Caused by countercoup injury

  • Detached retina

  • Cherry red fovea


12- about retinal detachment, which is true?

  • Exudative due to retinal tears

  • May be caused by severe hypotony

  • Rhegmatogenous due to vitrous prolapse


13- which of the following can occur following penetrating trauma to eye ?

  • Infection

  • Uveal prolapse

  • Sympathetic ophthalmitis

  • All the above 


14- all of the following occur in siderosis bulbi except....

  • Heterochromia 

  • Kayser Fleischer ring

  • Krukenberg spindle

  • Glucoma


15- about sympathetic ophthalmitis, which is false?

  • panuvitis that follow trauma

  • Start in sympathizing eye followed by exciting eye

  • Predisposed by I.O.F.B


16- Immediate effects of head injuries are all except...

  • Papilledema

  • Cavernous sinus thrombosis

  • Gaze palsy


17- Thermal injury mostly affect ....

  • Cornea

  • Eyelid

  • Retina


18- all cause cataract except...

  • Infrared waves

  • Solar rays

  • Microwaves

  • U.V rays


19- which is true about chemical injury?

  • All chemicals should be washed with water

  • Alkaki burn is more sever and cause penetration of the eye

  • Topical Vit C can be used to promote healing

Answers


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