Eye Health Archive

A recent analysis found a link between vision loss and higher risk of dementia. The results suggest improving visual acuity, such as with eyeglasses or cataract removal, might help maintain cognitive fitness in older adults.

There are many choices for lenses to replace a cataract. Examples include lenses that allow a person to see clearly at a single distance, or at several distances. Some types can correct astigmatism. When deciding which lens to choose for cataract surgery, people should consider costs, daily vision needs, existing vision problems, and pros and cons; for example, some lenses have more vision range than others, but also have risks of glare at night; some lenses still require a person to use glasses for up-close or distance vision.

Most people have eye twitches at some point in their lives. These are usually a sign of minor physical or mental stress. Spasms can be calmed with a warm compress, sleep, or exercise. People should see a doctor if one or both eyes close involuntarily with spasms.

While not as routine as cataract surgery, corneal transplants are becoming more common. A number of things can go wrong with the cornea, especially as people get older, and a partial-thickness or full-thickness transplant can restore vision.

Vigorous exercise may improve dry, itchy eyes by boosting tear production and quality.

A 2021 study found that people who underwent cataract surgery (a procedure replace the lens of the eye) appeared to have a lower risk of developing dementia than those who had cataracts but did not undergo surgery.

A reduction in tear production can lead to a condition called dry eye syndrome. It causes the eyes to become dry and irritated and may be prompted by aging, medication, or hormone shifts. Eye drops and ointments can help relieve symptoms.

An observational study published online Dec. 6, 2021, by JAMA Internal Medicine found that the risk of developing dementia was 29% lower in people who underwent cataract removal, compared with people who didn't have cataracts removed.

Having surgery to remove cataracts restores blurred or distorted vision, helping to improve quality of life for older adults. Now, a new study makes a strong case that removing cataracts may reduce a person's risk of developing dementia.

People who get age-related macular degeneration, cataracts, and diabetes-related eye disease may have a higher risk for dementia. Having more than one eye condition may further increase the risk.