Lights often look weird at night—appearing blurry, streaky, or surrounded by halos—due to pupil dilation and the stark contrast against the dark background. In the dark, your pupils widen to let in more light, which scatters light rays across the retina and highlights minor imperfections in your vision.
Conditions that can cause night blindness usually fall into two broad categories: Not enough light getting to your retinas or your retinas not working properly. Conditions that involve issues with light traveling through your eyes include: Cataracts. Glaucoma.
Proper eye nutrition can help support your vision, and a lack of certain nutrients may contribute to light sensitivity. Specifically, vitamins such as vitamin A and vitamin B2 support key functions in your eyes, and deficiencies can sometimes lead to discomfort in bright settings.
Astigmatism has effects during the day, but it's a condition that becomes much more noticeable when the light starts to dim. Astigmatism at night vs. normal vision takes a lot of getting used to.
Seeing lights weirdly—such as halos, starbursts, streaks, or flashes—is usually caused by light scattering incorrectly in your eye, commonly due to astigmatism, cataracts, or dry eyes. While often a minor, manageable issue, sudden flashes or new, severe distortions can indicate serious conditions like retinal tears, requiring immediate medical attention.
Yes, early signs of Alzheimer’s can often be detected in the eye. Because the retina and optic nerve are direct extensions of the central nervous system, they share the same tissue and mirror cellular changes occurring in the brain.
Due to an irregularly shaped cornea or lens, people with astigmatism cannot focus light into a single point on the retina. At night, pupils dilate to take in more light, causing these scattered light rays to create prominent starbursts, halos, streaks, or glare around streetlights and headlights.
Symptoms of age-related macular degeneration (AMD)
To fix astigmatism symptoms at night—like starbursts and halos around headlights—ensure your vision prescription is up to date and features an anti-reflective coating. Beyond corrective eyewear, practical daily adjustments and long-term medical options can dramatically improve your nighttime vision.
An eye stroke (retinal artery or vein occlusion) is a serious medical emergency. The hallmark early signs are a sudden, painless loss or change of vision in one eye, often described as a dark shadow, blurred patch, or a curtain closing over your vision.
When your vitamin B12 is low, you most commonly crave meat, fish, and eggs. Because your body is trying to self-correct, it instinctively signals a desire for nutrient-dense animal products that naturally contain the highest amounts of B12.
Here are 10 unexpected signs of a vitamin D deficiency that may surprise you.
While you do not need to worry about most daily multivitamins, certain combinations of individual vitamin or mineral supplements can hinder absorption or cause negative reactions.
Early symptoms of Multiple Sclerosis (MS) often affect the eyes due to inflammation of the optic nerve (optic neuritis). The most common warning signs include painful eye movement, blurred or grayed vision, temporary vision loss in one eye, and double vision.
Often, people who can see better up close but not as well far away will find their vision improves at night when they wear glasses. Vitamin A deficiency: Low levels of vitamin A can cause symptoms of night blindness. Supplements and dietary changes can often reverse those symptoms.
Sudden sensitivity to bright lights, or photophobia, is almost always a symptom of an underlying issue rather than a condition itself. It happens because the nerves in your eyes or the processing centers in your brain become irritated, causing normal light to feel intensely uncomfortable or painful.
In many cases, very young children “outgrow” astigmatism; however, the likelihood of outgrowing astigmatism decreases after ages 5 to 6. After the age of 25, astigmatism will typically stay the same. It can also gradually worsen with age or due to other eye conditions.
How can you care for yourself at home?
Yes, you can safely drive with astigmatism, especially if it is corrected. However, uncorrected astigmatism—particularly when driving at night—can distort oncoming headlights, streetlights, and traffic signals, creating distracting halos, starbursts, and glare that make it harder to see the road clearly.
Age-related Macular Degeneration (AMD) typically begins around age 50, with the average onset and diagnosis falling in the mid-70s. The risk and severity increase significantly as people age, making it the leading cause of severe vision loss in older adults.
Several conditions can be mistaken for age-related macular degeneration (AMD) because they affect the macula and cause similar symptoms like blurry or distorted central vision. The most common mimickers include central serous chorioretinopathy (CSC), macular holes, diabetic macular edema, cataracts, and genetic macular dystrophies.
You can monitor for age-related macular degeneration (AMD) at home using an Amsler grid. This simple chart helps detect early signs of retinal disease or progression by checking for wavy, blurry, or missing lines in your central vision.
Both astigmatism and keratoconus affect the cornea. They also present similar symptoms, including blurred vision, halos, glare, and poor night vision. That's why they're usually confused with each other.
Yes, you can legally drive at night with astigmatism, provided your vision meets your state's legal driving standards while wearing your corrective lenses. If uncorrected vision causes your sight to fall below these standards, your driver's license may be restricted to daytime hours only.
Common symptoms of astigmatism include: