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How Things Work

How Things Work: The Lens

How Things Work: The Lens

The lens is an important part of an extremely complex human visual system. The eye is made up of several clear structures that light must traverse on its journey to the retina (at the back of the eye) to be perceived as a clear image. To reach the retina, light must...

How Things Work: The Iris

How Things Work: The Iris

The most visibly striking feature of the human eye is the iris, the colorful part of the eye encircling the pupil. The pupil is the black “donut hole” in the center of the iris. On a microscopic level, the iris is a beautifully weaved, textured mesh of peaks and...

How Things Work: The Cornea

How Things Work: The Cornea

The cornea is the clear, dome-shaped covering over the colored part of the eye. About the thickness of a fingernail, this transparent tissue is made up of five layers (namely, epithelium, Bowman's membrane, stroma, Descemet's membrane, and the endothelium - if you're...

How Things Work: The Retina

How Things Work: The Retina

This month's How Things Work feature focuses on the retina. When light passes through a healthy eye, the tissues in front of the eye adjust the light so that it comes to a focal point at the back of your retina, called the macula (or fovea). This visual information is...

Macular Degeneration

Individuals over the age of 50 are at a higher risk for...

Why Your Children Should be Wearing Sunglasses

As you may know, the sun’s harmful ultraviolet (UV) rays can...

Get the Facts About Lazy Eye

Lazy eye, or amblyopia, occurs when one eye fails to reach...

Flashes, Floaters, and Spots: What’s in my Vision?

Have you noticed tiny shadows cast upon objects you are...

Eye Exams 101

Regular comprehensive eye exams are key to early detection of...