Most of us know that medicine can sometimes cause side effects such as dry mouth. But did you know that medications can also cause vision problems such as dry eyes or sensitivity to light? Some drugs can even lead to serious eye problems or vision loss.
"It's very important for people to be aware of what conditions they have, what medications they're taking, and how they may increase risk of certain eye problems," says Scott Greenstein, MD, FACS, instructor in ophthalmology at Harvard Medical School in Boston. "Most of these medicines are perfectly safe, and you never get into a problem with them," he says, but a small percentage can cause vision problems.
The most common symptom of astigmatism is blurred or double vision. If you are only slightly affected, you may not notice anything wrong. More significant astigmatism may cause noticeable distortions of your vision.
It is particularly important to remember that children with vision problems may not realize their vision is blurred. After all, they may never have seen the world in focus. That’s why it’s a good idea for children to have regular vision checks.
Here are some symptoms of astigmatism...
When taking a medication, be sure to tell your doctor about any vision problems. Catching problems early can prevent permanent damage to your eyesight. In some cases, your doctor may want to monitor your eyesight while you take a medication.
Below are 10 types of drugs that may cause vision side effects. This list is not comprehensive, so if you have any questions about a drug you take, be sure to talk with your doctor.
Isotretinoin treats severe acne that has not responded to other treatments. Vision symptoms may include dry eyes and a sudden decrease in night vision, Greenstein says, so be careful when driving at night.
How to prevent vision problems: This medication can cause a number of other serious side effects, so your doctor will monitor you while you are taking it.
Antihistamines relieve hay fever and other allergy symptoms. They work by blocking histamines produced by the body that cause a runny nose, watery eyes, sneezing, and itching. In some people, these drugs can cause an emergency condition called angle-closure glaucoma, which occurs when the pressure inside the eye increases rapidly. Symptoms include headache, severe eye pain, nausea and vomiting, blurred vision, and seeing halos around lights.
"Glaucoma is a very common disease, especially in people over 40," says Richard G. Shugarman, MD, a member of the editorial board of the American Academy of Ophthalmology and voluntary professor of ophthalmology at the Bascom Palmer Eye Institute, University of Miami School of Medicine. Glaucoma basically falls into two categories, open angle and narrow angle, he says. Most people with glaucoma have open angle, while a small percentage have narrow angle.