4Sight Newsletters

Anyone who wears glasses or contacts (unless they’ve had them since they were toddlers) can remember what it was like to suddenly be able to see individual leaves and blades of grass when they started wearing them...

An interesting pair of eyes can make a lasting impression, but the most unforgettable are probably the ones that don’t match. The scientific term for mismatched eye colors is heterochromia...

AMD is the gradual loss of central vision as the part of the retina with the highest concentration of photoreceptor cells (the macula, which is responsible for our detailed central vision) deteriorates...

Up to one in every six adults struggles with a sight-threatening eye condition and many more than that experience a degree of vision loss as they age. Many of the major causes of blindness and low vision are connected to age...

That’s because as much as 80% of all learning is visual, and experts estimate that more than half of childhood learning difficulties are the result of undiagnosed vision problems...

It might seem strange, since using our eyes is something we do automatically all day, but babies need to develop a number of visual skills in order to effectively use their eyes and process what they’re seeing, just like they have to learn how to walk and talk...

We typically think of lung cancer as the main health risk associated with smoking, and then maybe oral health problems next, but the parts of the body that have direct contact with the smoke aren’t the only ones hurt by it...

Melanin absorbs light, even some UV light, which is important for the iris — the part of the eye that controls how much light enters the pupil...

Around that time, the Roman philosopher Seneca used a glass globe of water to magnify text, while Emperor Nero needed a magnifying emerald to see gladiator fights...

That isn’t great, but where do our eyes fit into the equation? When we get enough sleep, it’s great for both our overall health and our eye health, and we can also improve our quality of sleep by changing what we put in front of our eyes before we go to bed...