Clinical Evaluation of the 3nethra Aberro Handheld Autorefractometer.

Purpose: To evaluate the 3nethra aberro auto refractometer device as an alternative tool for quick and reliable measurement of refractive errors and to compare it with the gold standard subjective refractive error measurement.

Methods: Refractive errors were measured using both subjective refraction and the 3nethra aberro handheld autorefractometer. The refractive measurements were converted into equivalent vector notations of spherical equivalent and Jackson cross-cylinder measurements J0 & J45.

An In-Vivo Study on Intra-Day Variations in Vascular Stiffness using ARTSENS Pen.

This work presents investigations on intraday variations in arterial stiffness. For this purpose, an in-vivo study was conducted on five subjects over a duration of five consecutive days. Five stiffness index ($\beta $) measurements were obtained per day for each individual.