Participants were excluded if they had signs/history of ocular disease, substantial interocular differences in flicker thresholds, or were unable to detect 100% flicker modulation in the high mesopic range. The background luminance ranged from 0.6 to 60 cd/m 2 and pupil size was measured continuously. Thresholds were measured for detection of 15-Hz flicker at the fovea (0°) and at an eccentricity of 4° in each of the four quadrants. We investigated 71 participants aged 20 to 75 years. This study aimed to establish how healthy aging of the retina affects the detection of 15-Hz flicker under photopic and mesopic lighting. In general, the effects become more significant in those older than 40 to 50 years, with increased intersubject variability and stronger dependence on ambient illumination.
This means that two people sitting at the one computer can easily see the screen with high image quality.Aging can affect many aspects of visual performance. The monitor uses an LED-backlit IPS (in-plane switching) LCD panel with 178° viewing angle that minimizes color shift and contrast changes when viewing the screen at an angle. FlexScan Frameless monitors utilize a hybrid solution to regulate brightness and make flicker unperceivable without any drawbacks like compromising color stability – even on low brightness settings. When used in conjunction with Auto EcoView dimming function, blue light can be reduced by as much as 80%.ĭue to the way brightness is controlled on LED backlights, a small number of people perceive flicker on their screen which causes eye fatigue. Compared to the factory preset setting of 6500 K of typical LCD monitors, Paper Mode is closer to the spectral distribution with long reddish wavelengths so it reduces the amount of blue light, a cause of eye fatigue, and helps prevent eyestrain when reading documents. In the visible light spectrum, blue light has wavelengths adjacent to ultraviolet light.