'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources ...

The flashes of light may vary in shape, color, frequency, and duration. Flashes of light in the corner of the eye could be due to changes in the eye’s structure, which becomes more common with age.

Handheld light meters aren't just a relic of the past, they do things your camera’s built-in light meter can't and are a vintage film photography staple The handheld light meter was once a ...

The other key plot point is Farrah’s use of stroboscopic light therapy to stimulate brain activity and neural responses. One by one, she sits the family members down in front of a flashing lamp ...