For these eyes characterized by a mean K at 44.17 ± 1.67 D, an anterior astigmatism at 1.03 ± 0.71 D (<0.75D: 40.0%; 0.75D-1.50D: 36.7%; >1.50D: 23.3%), and a mean emmetropic IOL power at 21.48 ± 1.76 D, saline instillation did not statistically modify the mean K (variation of - 0.03 ± 0.08 D for before vs. after, p I i = 0.43), nor for the emmetropic IOL power (0.03 ± 0.09 D, p = 0.51). We evaluated whether instillation of eye drops immediately before performing biometric measurements can modify the planning of intraocular lens (IOL) in cataract candidates. [Extracted from the article]