Assessing Dynamic Reading Behaviors Using Eye-Tracking Tobii Glasses

HYPOTHESIS: 1. Horizontal convergence tracked with Tobii glasses is a reliable substitute for accommodation in young myopes and hyperopes with normal accommodative amplitudes 2. Young mypopes and hyperopes demonstrate different reading behaviors during near work AIMS \& OBJECTIVES: 1. Compare the accommodative responses measured with the Grand Seiko open-field autorefractor to those derived from the Tobii Glasses, when subjects wear (1) spectacle glasses, (2) single vision contact lenses (SVCLs), and (3) multifocal contact lenses (MFCLs). 2. Investigate subjects' natural and dynamic accommodative behaviors and eye postures during reading using the Tobii Glasses. 3. Compare the change in natural and dynamic accommodative behaviors and eye postures during reading between myopes and hyperopes using the Tobii Glasses.