and you don't need the lights turned up — ambient light works just
fine.
True of false? The incidence of light-induced retinopathy may be
decreased when ophthalmologists use 4K and 3D imaging.
a. True b. False
a. True. Retinal damage can occur when patients are exposed for sig-
nificant periods of time to light from ophthalmic instruments. With a
heads-up 4K and 3D display, practitioners need less light to see well,
so the chance that a patient will suffer light-induced retinopathy may
be decreased.
True or false? The color gamut on a 4K video monitor is reduced
for some colors, especially reds and yellows.
a. True b. False
b. False. The color gamut is substantially increased with 4K video,
especially for reds and yellows, which allows diagnostic decisions
based on a tissue's shade to be made with greater confidence. In fact,
a 4K display can offer 4 times as many color shades as an HD display.
How much can you magnify
an image in 4K surgical videos?
a. 2–5x c. 10–30x
b. 5–9x d. up to 50x
c. You can magnify an image on the screen 10 to 30 times with virtual-
ly no pixilation. In other words, even if you're dealing with anatomy
that's measured in microns, your surgeon and the OR team can have
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