Eye Health Archive

Vision loss has many risk factors. Some risk factors are well known, such as diabetes, high blood pressure, and older age. Other risk factors for vision loss are not as well known, such as inactivity, psoriasis, shingles, and smoking. People who have these risk factors might need eye exams more often than the standard recommendations for healthy adults (a comprehensive eye exam every two years from ages 40 to 65, and every year or two after age 65).

Night blindness makes it hard to see in dim or dark settings, which can affect safety at home and make driving dangerous after dark. While the cause varies, there are steps people can take to address these problems.

Retinal migraines cause temporary blindness or vision changes in just one eye. They are three times as common in women as men. Retinal migraines last from 10 minutes to an hour and arrive with or just after the start of the headache. Symptoms may seem similar to what can happen during a transient ischemic attack (TIA) or stroke. People who experience new vision changes, even temporary ones, should seek medical attention.

A 2023 study suggests older adults with vision problems, including up close or at a distance, face significantly higher risks of dementia than those with no vision problems.

Early planning can help people recover well from cataract surgery. That planning can include reviewing post-procedure instructions in advance; investigating whether a simplified eye drops regimen is available and will be covered by insurance; learning the right way to use eye drops, and teaching a loved one to help with their application if necessary; and preparing to take a break from certain physical activities, such as bending over, lifting objects that are 10 pounds or heavier, cleaning, vacuuming, or doing laundry.

The human body has excess capacity — that is, our organs have more reserve than most of us will ever need. Why are we built with this natural redundancy? And which body parts can safely fail or be removed without impairing health?

Dry eye syndrome is one of the most common eye problems among older adults. Common symptoms include a gritty feeling in the eyes, sensitivity to light, or fluctuating vision that comes and goes. People with the condition can have good and bad periods, but by following prevention methods and seeking treatment when the disease flares, they can keep dry eye from interfering with their lives.

An ad for a medication to treat thyroid eye disease accurately describes the symptoms of the condition, but as is common with such ads it does not discuss other possible treatment options, or other information that people should be aware of.

High-tech tools can help people with vision impairment. Examples include accessibility features (such as speech-to-text or text-to-speech) on a smartphone or computer; apps for navigation, magnification, or describing a scene; wearable devices that use video cameras to capture images and then project them onto tiny screens inside a headset; peripheral prism glasses, which shift light from one side of the eye to the other to make up for losses in field of vision; and household gadgets such as "talking" thermometers, scales, and calculators that audibly read out results.