29 Questions
What is ocular trauma?
Injury to the eye by external means
What are common causes of eye injuries?
RTA and industrialization
What percentage of patients seen in ophthalmology have ocular trauma-related issues?
5%
Why are eyes considered well-protected based on the text?
They have natural defense mechanisms
What is a leading consequence of ocular trauma according to the text?
Visual impairment
What is the possible outcome of iridodialysis?
Detachment of the iris from its root at the ciliary body
What is a common occurrence in closed-globe injury related to sphincteric rupture?
Rupture of the pupillary margin
What is a characteristic of Vossius ring related to traumatic cataracts?
Circular ring of brown pigment on the anterior capsule
What might occur due to partial or complete disruption of zonules in lens injuries?
Subluxation/ Dislocation
What is a common change associated with vitreous according to the text?
Anterior or posterior detachment
What type of retinal edema involves diffuse retinal edema according to the text?
Commotio retinae
What type of reaction is excited by pure copper, zinc, nickel, and mercury particles?
Suppurative reaction
In penetrating/perforating eye injuries, what should be done with small shelving/self-sealing lacerations with formed anterior chamber (AC)?
May heal spontaneously
What is the treatment approach for corneo-scleral laceration with lens damage?
Suturing the laceration and lens extraction/washout
In what situation should IOFB be removed according to the text?
Always be removed
Which material causes specific reactions like Siderosis bulbi and Chalcosis as mentioned in the text?
Iron and copper alloys
What imaging techniques are used for localizing Intraocular Foreign Bodies (IOFB) according to the text?
USS Plain xrays +/- special techniques
What ocular lesion may develop after exposure to ultraviolet radiations?
Senile cataract
What is a common source of ultraviolet radiations that can lead to photo-ophthalmia?
Welding arcs
Which imaging technique is NOT recommended for initial assessment in ocular injuries management?
MRI
Which type of radiation injury may cause 'electric cataract' after a few months?
Ionizing radiation
What is a preventive measure for ultraviolet radiation-induced ocular lesions?
Regular glass lenses
Which ocular complication may result from ionizing radiation exposure during radiotherapy?
'Electric cataract'
What is the defining characteristic of a penetrating eye injury?
It results in two full-thickness wounds of the eye wall
In blunt eye injuries, what is the recommended treatment for lacerations?
Suturing with or without uveal tissue repositing/abscision
What is the mechanism of an orbital blowout fracture?
It involves sudden proptosis
Which type of eye injury is considered a serious emergency?
Perforating injuries with two full-thickness wounds
What is the appropriate treatment for inflamed eyes in the context of blunt eye injuries?
Cycloplegic therapy and topical steroid
What is the primary cause of retobulbar haemorrhage leading to sudden proptosis?
Trauma by sharp and pointed instruments
Test your knowledge on ocular and adnexal injuries, including the Ocular Trauma Score and principles of management. This quiz covers mechanical and non-mechanical injuries related to the eye.
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