Adam Sherwinski teaches ciLiving host, Jaclyn Friedlander about light refraction. Watch how light bends when it passes ...

Enormous freshwater reservoir discovered off the East Coast may be 20,000 years old and big enough to supply NYC for 800 years Taylor Swift’s mom, Andrea, was photographed with Travis Kelce’s mom, ...

I'm a Fitness & Nutrition writer for CNET who enjoys reviewing the latest fitness gadgets, testing out activewear and sneakers, as well as debunking wellness/fitness myths. In my free time I enjoy ...

After age 65, schedule an annual eye exam to catch vision changes early, before they lead to long-term vision loss. Aging can affect near vision, color vision, and how quickly your eyes adjust to ...

A stye is a tender, pus-filled lump on the eyelid caused by a bacterial infection in a clogged gland or eyelash follicle. Risk factors include poorly cleaned contact lenses, eye makeup buildup, and ...

The human eye is a simple, but extremely robust, optical instrument. Analysis by sophisticated wavefront-sensing technology and customized ray-tracing has now revealed that the eye is actually an ...

TFOS DEWS III emphasizes matching dry eye treatments to specific mechanisms such as lipid imbalance, osmolarity, and glycocalyx failure.