Takashi Fujikado: “Quantification of eye strain caused by digital devices”

March 29, 2019  Friday Lunch Seminar
12:15 〜 13:00

CiNet 1F Conference Room

“Quantification of eye strain caused by digital devices”

Takashi Fujikado

Applied Visual Science, Osaka University Medical School
CiNet PI


Recently, digital devices such as smartphone or head mount display (HMD) are prevailing rapidly and eyestrain in adults and myopia progression in children are social problems. The average viewing distance of smartphone is about 20 cm, which is shorter than that of books (30cm), which impose a large accommodative effort. In a case of viewing 3D images by HMD, the discrepancy between accommodation and convergence causes eye strain. We developed binocular wavefront sensor (BWFS) which enables to measure the accommodation and convergence simultaneously. By incorporating liquid crystal shutter to BWFS, we reported that visual fatigue can be evaluated objectively and quantitatively. In this talk, the quantification of visual stress by using digital devices and the possible management of eye strain.

About CiNet’s Friday Lunch Seminars:
The Friday Lunch Seminar is CiNet’s main regular meeting series, held every week at 12:15 in the beautiful main lecture theatre on the ground floor at CiNet. The talks are typically 40mins long and orientated towards an inter-disciplinary audience. They are informal, social, and most people bring their own lunch to eat during the talk. They are open to anyone who is feeling curious and wants to come, regardless of where you work.