Study of Body Posture and Eye Movements During Digital Device Use in Adults Aged 18 to 65 Wearing Various Eyeglasses

What this Trial Is About

Researchers are studying how adults aged 18 to 65 move their bodies and eyes when using digital screens while wearing different types of eyeglasses. The study focuses on comparing young adults and presbyopes (older adults with age-related vision changes) to understand how their visual behaviors differ during digital device use. It also evaluates how different eyeglasses affect these behaviors, with the goal of better understanding visual and postural responses during screen tasks. Participants are divided into groups based on age and type of lenses worn. Young adults will test single vision lenses, while presbyopes aged 43 to 65 will test both single vision and progressive lenses. Each participant will undergo an eye exam and complete simple visual tasks on digital devices while wearing these lenses. The study does not use random assignment and involves monitoring participants over a period of three months after enrollment. During the study, researchers will measure gaze lowering using an eye-tracker device, and assess head and body inclination through a motion capture system. They will also monitor the distance participants keep from digital devices. Correlations between vision profiles such as refraction, binocular vision, accommodation, and head-eye coordination with postural behavior during visual tasks will be analyzed. Participants' eye exams and visual task performances will be tracked from enrollment to three months afterward.

A Study on Body Posture and Eye Movements During Screen Usage on Adults Aged 18 to 65 Wearing Various Types of Eyeglasses