Fig 1.
Study Protocol in this prospective observational case control study.
Fig 2.
Sizes of the Point, Cross, and Ring Fixation Targets.
The internal diameters and external diameters are presented for the Cross and Ring marks.
Fig 3.
The wearable eye-tracking glasses consist of a camera with a resolution of 640×480 pixels mounted on the right temple, which records the eyesight of the participant; it also includes a pupil detection camera with a sampling frequency of 30 Hz located on the right temple of the glasses for recording the participant’s fixation.
Table 1.
Participant Demographic and Ocular Characteristics.
Table 2.
Comparison of Fixation Behavior and its Frequency among the Point, Cross, and Ring Targets.
Fig 4.
Relationship between Fixation Behavior and Threshold Sensitivity.
(Top) Scatter plots of the relationship between the root mean square error (RMSE) at each test point and the bivariate contour ellipse area (BCEA). (Bottom) The relationship between RMSE and log(BCEA). Correlation coefficients (ρ) were calculated with Spearman's rank correlation coefficient.
Fig 5.
Typical Example of Fixation Behavior among the Three Fixation Targets.
(Top) Fixation behavior of the visual field within 30° and (Bottom) expanded within 5°.