Table 2. Shift in the type of astigmatism postoperatively in the acquired ptosis (AP) and contact lens-related ptosis (CLP) groups.

AP		CLP
Preoperative (cases)	Postoperative (cases/%)	Preoperative (cases)	Postoperative (cases/%)
WTR (21)	WTR (15/71.4)	WTR (20)	WTR (1/95.0)
	OA (5/23.8)		OA (0/0)
	ATR (1/4.8)		ATR (1/5.0)
OA (19)	OA (9/47.3)	OA (2)	OA (0/0)
	WTR (5/26.3)		WTR (2/100)
	ATR (5/26.3)		ATR (0)
ATR (44)	ATR (25/56.8)	ATR (1)	ATR (0)
	OA (14/31.8)		OA (100)
	WTR (5/11.3)		WTR (0)

The shaded cells represent a change in the type of astigmatism postoperatively.

WTR: With-the-rule; ATR: Against the rule; OA: Oblique astigmatism.