Group A Group B P Value
Vegetable trauma 8 4 0.16
Non vegetable trauma 3 4 1.0
Diabetes mellitus 2 3 1.0
Prolonged topical steroid 2 0 1.0
Contact lens wear 1 4 0.34
Ocular surgery 3 3 1.0
Recurrent herpetic keratitis 1 1 1.0
Trichiasis 0 1 1.0
Immunosuppression 0 1 1.0
More than risk factor 3 4 1.0
No risk factor 3 3 1.0
P>0.05=non-significant
Table 2: Risk factors in patients of both groups of the study.