Sources of Digital Eye Strain
BLINK RATE
Problem: Digital screen viewing can reduce blink rate up to a third of the standard blink rate.
Solution: GUNNAR patented high-wrap optics sit close to the face and capture humidity near the eye. Eyes stay moist longer in the protected ocular microclimate. In a long term study done at three independent doctors' locations, alleviation of dry eye irritation ranked as the number one improvement in eye strain.
79% OF STUDY SUBJECTS REPORTED INCREASED WORK PERFORMANCE. BIGGEST IMPROVEMENT - DRY EYE REDUCTION
MUSCULAR EYE STRAIN
Problem: Eyes are designed to change viewing distance often. Eye muscles flex the hardest when viewing near objects. Extended near distance viewing without breaks causes cumulative eye fatigue, leading to repetitive muscular strain and possible headaches or migraines.
Solution: Most GUNNAR lenses (GUNNAR Focus) bend light before it reaches the eye so images can be seen more sharply while eye muscles relax.
NEAR VISION
Converging Light Rays
DISTANCE VISION
Parallel Light Rays (Less Light Bending Needed)
GUNNAR VISION
Lens Bends Light of Converging Light Rays
QUALITY OF ARTIFICIAL LIGHT
Problem: Artificial light from computer screens, mobile devices, and office overheads contains small bands of high-intensity
energy instead of balanced, full-spectrum light. This artificial light is particularly heavy in high-energy visible (HEV) light found
in the UV through blue part of the spectrum (400-450nm). Overexposure to HEV light has been shown to cause altered
circadian rhythms, insomnia, and impacted serotonin levels—all common symptoms of Computer Vision Syndrome.
Prolonged exposure to blue light may increase the risk of age-related macular degeneration (AMD) and potentially worsen
existing retinal conditions.
Solution: GUNNAR Tints filter and balance the transmitted light spectrum by reducing HEV. In addition to protecting eyes
from digital eyestrain and potential long-term retinal damage, the specialized tints also provide more visual performance by
allowing the sensitive parts of the eye to work optimally, increasing perceived contrast.
Blocks 65% of blue light at 450nm
More than two decades ago, GUNNAR patented the optimal light transmission curve to offset high peaks of energy emitted from artificially backlit screens
GLARE AND VISUAL NOISE
Problem: Digital screen reflections and glare cause visual noise for the eyes. These distractions require additional strain to
mentally sort between the desired image and non-desired light, potentially causing increased fatigue and headaches.
Solution: GUNNAR GSHIELD®, GSHIELD® Plus, and GSHIELD® Premium coatings reduce glare, reflections, and visual
noise.
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