Effect of Single Administration of Coffee on Pupil Size and Ocular Wavefront Aberration Measurements in Healthy Subjects

Table 1

Pupil size measurements before and after coffee intake.

	Before	After 5 minutes	After 30 minutes	After 4 hours
Pupil size, mm	6.79 ± 0.10	6.98 ± 0.80	6.97 ± 0.66	6.77 ± 1.49	0.270

ANOVA test with repeated measurements.
Results are denoted as mean ± standard deviation.