Comparison of Color Light-Emitting Diode Corneal Topographer and Dual Rotating Scheimpflug–Placido Topographer

Table 1

Characteristics and measurement settings for each system.

Parameter	Dual rotating Scheimpflug–Placido	Color light-emitting diode
Acquisition time (s)	0.75	2
K index	1.3375	1.3375
K measurement zone (mm)	1–4 (anterior)	3
	0.5–2 (posterior)

K, keratometry. Configurable or selectable option.