![]() Research has shown that alcohol and marijuana - separately or in combination - can reduce your eyes' ability to recover from exposure to a bright light source (such as oncoming headlights at night) and adapt to changing light conditions. This is why you see physicians checking an athlete's pupils with a penlight following head trauma sustained during sporting events, or when a patient arrives at a hospital emergency department with other possible stroke symptoms. Brain injury or diseaseĪ head injury, stroke or brain tumor can affect how your pupils react to light and cause dilated pupils. Sometimes, this sort of injury can occur during an eye surgery, such as a complicated cataract surgery or a corneal transplant. READ NEXT: Floppy Iris Syndrome Eye injuryĪ serious, penetrating eye injury can damage your iris and cause the pupil to become dilated and irregular in shape. The following prescription and non-prescription medicines can cause your pupils to dilate and affect their ability to react to light:īotox and other medications containing botulinum toxinĪtropine (used for myopia control and other medical purposes) The most common dilated pupil causes include: Medications If one pupil is noticeably larger than the other, you may have something called anisocoria. Your pupils should also dilate symmetrically. However, if your eyes are fully dilated even in a bright environment or if your eyes don't seem to be dilating as they should, it's time to get your eyes checked. It's normal for your pupils to dilate more the darker your surroundings. "It literally will have you go back to a normal blink rate, coat your cornea, you'll feel better, and it also relaxes those reading muscles that are overworking," she said.If you've noticed your eyes are unusually dilated (larger) or one eye is dilated more than the other, call an eye doctor! You should also wear sunglasses all year long to prevent diseases like melanoma and macular degeneration, which are more likely with UV exposure.įor people who spend a lot of time looking at screens, which can create dry eyes, he also recommended following the 20-20-20 rule: Every 20 minutes, for 20 seconds, take a break by looking at something 20 feet away. Negrin stressed that taking care of your overall health will benefit your eyes, from managing your blood pressure and cholesterol to not smoking. ![]() Your eyes should never hurt, so any pain should be taken seriously.Īlthough eye pain may have a very obvious cause, such as injury, it can also indicate other conditions that range from benign to potentially blinding, like optic neuropathy or angle-closure glaucoma. “The point is to get in so we can figure it out.” 5. “It could be nothing or it could be an aneurysm, a tumor, a brain infection or a sign of a stroke,” said Taylor. Unequal pupil size can be a sign of serious problems. Generally, if you’re an adult and one of your pupils - that black dot right in the middle of your eye - becomes larger or smaller, and you haven’t used eye drops, call your doctor. Some people who are otherwise healthy may have unequal pupils. Pupils don’t look the same sizeĪnisocoria is the technical name for unequal pupil size. ![]() “If the double vision is new or sudden, you need to be evaluated,” Taylor explained. If you have pain, weakness, slurred speech, along with double vision (or any vision change), go to an emergency department. That could be due to a neurological issue, an autoimmune problem or other potentially serious issues. ![]() If you have double vision in both eyes, which is more common, it means your eyes aren’t working together in the right way. If you have double vision in one eye, it can be due to a corneal problem. People can experience double vision in one or both eyes. It doesn’t hurt and some people may not even notice any symptoms, which can range from merely annoying to downright anxiety inducing, said Huang. You may be experiencing something benign called a posterior vitreous detachment (PVD.) Or you might be experiencing a retinal tear that could lead to a retinal detachment, which is potentially blinding if not fixed quickly.Ī PVD is a process of aging (generally after age 50 for most of us and younger if you are near-sighted) in which the vitreous, a gel-like substance that fills your eye and is attached to the retina, begins to shrink and pull away from the retina. Flashes and floatersĪlthough most people have experienced floaters, those gnat-like or cobwebby squiggles that appear in your field of vision, a new onset of floaters, which may be accompanied by flashes of light (often described as a lightning streak in the peripheral vision), warrants a quick trip to an ophthalmologist. Suber Huang, CEO of Retina Center of Ohio in Cleveland, told TODAY. “Anything that is new in terms of a change in your vision could be potentially worrisome,” Dr.
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