Agreement Between Static And Dynamic Pupillometry Analysis: Pentacam Vs. Myah

The aim of this study is to compare static and dynamic pupillometry using different devices: Pentacam (Oculus) and Myah (Topcon Healthcare), respectively.

Pupillary evaluation plays an important role in ophthalmology, mainly in preoperative evaluation of candidates for refractive surgery. Different devices are frequently used, some providing static and others providing dynamic pupillary metric analyses. The agreement between static and dynamic pupillometry is of interest as not all refractive centers have both devices.

40 eyes of 40 patietns were included. Pupil diameter was measured using the Pentacamand the Myah. For statistical purposes only scotopic environment data were selected for analyses.Differences between two devices were assessed. p<0.005 was considered statistically significant.

Pentacam measurements yielded a mean pupil diameter of 2.57 mm (SD = 0.86 mm), while Myah measurements yielded a mean of 2.54 mm (SD = 0.93 mm). A paired t-test revealed no statistically significant difference between the two devices (t = 0.16, p = 0.87). 

Scotopic static pupillometry seems to be in line with dynamic pupillometry. The absence of statistically significant differences in pupil diameter measurements between Pentacam and Myah devices suggests that both devices could be reliable for clinical use for scotopic pupillary evaluation. These results highlight the reliability of Pentacam data and support its use in preoperative refractive surgery evaluation.