Criteria for poor visual outcome: final vision < 5/200
Risk factors for a poor visual outcome:
(1) initial visual acuity < 5/200
(2) presence of an afferent pupillary defect on initial testing
(3) blunt force causing rupture of the globe
(4) wound involves the sclera
(5) wound extends posterior to the rectus muscle insertion
(6) wound > 10 mm in length
(7) subluxation of the lens
(8) loss of the lens through the wound in the eyewall
(9) inability to visualize the retinal vessels and optic nerve on indirect ophthalmoscopy due to vitreous hemorrhage
(10) injuries associated with an intraocular "BB" pellet
Factors associated with a good visual outcome:
(1) initial visual acuity >= 5/200
(2) no afferent pupillary defect on initial testing
(3) injury due to a sharp object
(4) wound limited to the cornea
If the postoperative visual acuity was >= 5/200 then the chances of achieving a good outcome (vision >= 20/50) were fairly good, depending on the injury.
