Comparison of Total Corneal Astigmatism between IOLMaster and Pentacam

Table 2

Corneal power and astigmatism obtained using IOLMaster and Pentacam.

	IOLMaster at 2.5 mm () (range)	Pentacam at 3.0 mm (anterior corneal surface) or 4.0 mm (total cornea) () (range)
K flat of anterior corneal surface, K1 (D)	(38.62~49.91)	(38.70~49.50)
K flat of anterior corneal surface axis (°)	(-89.00~90.00)	(-88.60~89.30)
K steep of anterior corneal surface, K2 (D)	(41.55~53.63)	(40.50~52.00)
Astigmatism of anterior corneal surface (A-ACS) (D)	(-4.84~0.00)	(-3.80~0.00)
K flat of total cornea, TK1 (D)	(39.05~50.15)	(40.00~49.00)
K flat of total cornea axis (°)	(-89.00~90.00)	(-88.90~89.90)
K steep of total cornea, TK2 (D)	(41.63~54.13)	(41.90~55.40)
Astigmatism of total cornea (TCA) (D)	(-4.76~0.00)	(-7.20~0.00)

D = diopters; K = keratometry.