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Choosing a flicker-free monitor – a display that maintains a steady stream of light – is one of the healthiest choices you can make to protect your eyes. However, the path to saving your eyes from long-term damage starts with the computer monitor you choose. This includes making modifications to your workstation, as well as practicing healthy eye techniques and strategies. Since your screen-centric lifestyles aren’t likely to change anytime soon, it’s vital for us to take proactive preventative measures to maintain the long-term health of your eyes. It may also lead to more severe issues in the long-term. Unfortunately, continued exposure to computer monitors can be very harmful to your eyes, causing irritation and discomfort in the short term. That exposure takes a toll on the health of your eyes, as well as your overall health, over prolonged periods. Most of us have never realized the degree to which we’re regularly exposed to digital displays. Research shows that the average American worker uses a computer for up to 7 hours a day for work, recreation, or both. Your reliance on computers in the workplace means that office workers are exposed to computer monitors every day, and many of them use the monitor for the majority of their work tasks. Look around your typical office and what do you see? Perched on every desk is a computer. Learn more about how flicker-free monitors contribute to eye health below. However, many monitors now use flicker-free technology to put less strain on monitor users’ eyes.
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While a user may not be aware of the flicker, it can cause a number of issues, including eye strain. A typical monitor adjusts its brightness through flickering, introducing periods of low light between higher brightness. Combined consideration of RNFL thickness and results from one of these perimetric tests can increase the total number of detected patients.Flicker-free monitors are specially designed to produce a single continuous light source. ConclusionįDF and FDT stimulations can be used to detect patients with early glaucoma. The correlation analysis between local RNFL thickness and corresponding visual defects revealed significant Spearman correlation coefficients for the arcuate bundles of the visual field (FDF-inferior: R = −0.65, FDF-superior: R = −0.74, FDT-inferior: R = −0.55, FDT-superior: R = −0.72). Sensitivity in this patient group was 65 % for FDF-MD, 60 % for FDT-MD, and 60 % for RNFL-thickness, all at a specificity of 95 %. In this cohort of early glaucoma patients, the MD values were 6.1 ± 5.0 dB (FDF) and 4.5 ± 4.1 dB (FDT). Mean defect data from FDT and FDF perimetry were strongly correlated (R = −0.85, P <0.001).
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Venn-diagrams show the number of patients with abnormal results in HEP, Matrix, SAP, and mean RNFL thickness. Statistical analyses included comparison of the standard indices and correlations between methods. Exclusion criteria were: mean defect (MD) in SAP > 6 dB, eye diseases other than glaucoma, or non-reliable FDF or FDT measurements. All patients underwent FDF perimetry (HEP), FDT perimetry (Matrix), standard automated perimetry (SAP, Octopus), and peripapillar measurements of the RNFL thickness (Spectralis OCT). The definition of glaucoma was solely based on optic disc appearance. Seventy-two experienced glaucoma patients and 50 healthy subjects of the Erlangen Glaucoma Registry participated in the study. To compare perimetric data based on the second-generation frequency doubling technology (FDT) and on flicker defined form (FDF) stimulation in early glaucoma patients.