Table 1.

Distribution of patients on the basis of Pre-operative Pupil Dilatation

Pupil	PEX	Control	Total
Dilatation	Frequency	Frequency	Frequency
Max(> = 5 mm)	10	95	105
Mid(3-5 mm)	85	5	90
Min(<3 mm)	5	0	5
Total	100	100	200
$\chi 2=144.921\text{,\hspace{0.17em}P}=0.000,\text{\hspace{0.17em}p}<0.05\text{,}$		Highly Significant

Observations: The difference in the preoperative pupil diameter after maximal mydriasis was highly significant between the two groups, with 85% eyes with PXE attaining pupil size between 3 to 5 mm whereas 95% eyes of the control group with pupil > =5 mm.