Penetrating Trauma

Question 1

Penetrating trauma caused by

Answer 1

Sharp or pointed object

Question 2

Incidence b/w male and female

Answer 2

Common in male

Question 3

Clinical effects

Answer 3

Mechanical damage to any IO structure
Infection (Endophthalmitis)
sympathetic ophthalmitis
IOFB

Question 4

Common intraocular foreign bodies:

Answer 4

Iron (ocular siderosis or siderosis bulbi)
Copper (ocular chalcosis)
Organic foreign body

Question 5

Iron IOFB cause:

Answer 5

Brown cataract (ACP)
Heterochromia
Retinal degeneration
Optic nerve damage
2ry OAG

Question 6

Copper IOFP cause:

Answer 6

Sunflower cataract
Kayser Fleischer ring
Retinal degeneration
Optic nerve damage

Question 7

Organic IOFB cause:

Answer 7

Wood in eye leads to endophthalmitis

Question 8

Signs of penetrated eye

Answer 8

Shallow or deep A/C
Traumatic cataract, lens displaced
Hyphema, vitreous hge, hypotony
Surest sign (+ve seidel test)

Question 9

Investigations in case of penetrating trauma

Answer 9

CT studies (localization of FB)
U/S
Orbital x-ray
Ophthalmoscope exam
Slit lamp exam
Gonioscope
MRI is contraindicated

Question 10

Tx of penetrated eye

Answer 10

Mild: suturing the globe
Severe: Enucleation
IOFB should be removed except if it is inert, sterile, and not affect vision.
Tetanus immunization and prophylactic antibiotics

Question 11

How to remove FB in A/C or on iris

Answer 11

Remove it through limbal incision using foreceps

Question 12

Removing FB entrapped in iris

Answer 12

Iridoectomy

Question 13

Removing FB in the lens

Answer 13

Lens extraction

Question 14

Removing FB in the posterior segment

Answer 14

Vitrectomy