Trauma Questions

Which acid can penetrate into the Anterior Chamber?

• H2SO4

• HCl

• HFl

• Citric Acid

Which of the following are part of Dua's grading of Chemical injuries (more than 1 correct option)

• AC reaction

• Limbal ischaemia

• Corneal epithelial defect

• Conjunctival epithelial defect

Systemic Ascorbate is used to replenish its deficiency in

• Blood

• Tears

• Aqueous

• Vitreous

Snow blindness refers to injury due to

• Reflection of UV rays in sunlight

• Diffraction of UV rays in sunlight

• Refraction of UV rays in Sunlight

• Direct injury due to UV rays in sunlight

In a patient with sunconjnunctival h'ge, further investigation including imaging is warranted if

• More than 50% of the palpebral aperture is involved

• The colour is yellowish

• The posterior border of the h'ge is not seen

• There is an associated hyphema

The thinnest part of the scleral is

• At the limbus

• Just anterior to the extraocular muscle insertions

• Just posterior to the extraocular muscle insertions

• At the equator

Signs of blunt trauma to the cornea include

• Corneal edema

• Epithelial abrasions

• Endothelial rings

• All the above

Traumatic mydriasis

• Is permanent

• Recovers in a few hours

• Recovers with steroid drops

• Develops vermiform movements on light stimulation

Which of the following is a procedure described to repair large iris lacerations?

• Moh's technique

• McCannel's technique

• Foster's Technique

• Felman's Techique

Cyclodialysis

• Is separation of the ciliary body from the vitreous base

• Causes damage to trabecular meshwork

• Can result in hypotonic maculopathy

• Is a risk factor for glaucoma in the future