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.