Why Do Some People See Halos Around Lights at Night?

Driving at night should feel safe and comfortable, but for some people, headlights, streetlights, and traffic signals may appear surrounded by bright rings or glowing circles. If you have ever wondered, “Why do some people see halos around lights at night?”, you are not alone.

Halos can sometimes occur because of temporary issues such as tired eyes, dry eyes, or dirty spectacles. However, frequent or persistent halos may also indicate an underlying eye condition that requires professional attention.

Seeing halos can make nighttime driving difficult and may affect your ability to read road signs or carry out everyday activities after dark. Identifying the underlying cause early and consulting an experienced Ophthalmologist in Thane can help protect your vision and improve your overall eye health.

What Are Halos Around Lights?

Halos are bright rings or circles that appear around light sources. They are particularly noticeable in low-light conditions because the pupils naturally become larger at night.

People may notice halos around:

• Car headlights

• Streetlights

• Traffic signals

• LED lights

• Lamps

• Decorative lights

Occasional halos may not be a serious concern, but frequent or worsening symptoms should not be ignored.

Why Do Some People See Halos Around Lights at Night?

Several factors can cause halos around lights. Some are temporary and easily managed, while others may require medical treatment.

1. Cataracts

Cataracts are among the common causes of halos around lights. A cataract develops when the eye's natural lens becomes cloudy. The cloudy lens can scatter incoming light, resulting in halos, glare, and blurred vision.

Other symptoms may include:

• Blurred or cloudy vision

• Difficulty seeing while driving at night

• Faded or less vibrant colours

• Frequent changes in spectacle prescription

• Increased sensitivity to bright lights

Cataracts become more common with age, particularly among older adults.

2. Refractive Errors

Refractive errors can also contribute to halos around lights. These include:

• Nearsightedness (myopia)

• Farsightedness (hyperopia)

• Astigmatism

When light does not focus correctly on the retina, it may create glare or halos around bright objects.

A comprehensive eye examination and an updated spectacle or contact lens prescription may help improve these symptoms. If halos continue despite corrected vision, an evaluation by an eye specialist may be recommended.

3. Dry Eye Syndrome

Dry eyes are another common cause of visual disturbances, including halos.

The tear film provides a smooth surface over the eye. When it becomes unstable or uneven, incoming light may scatter and cause glare, halos, or temporary blurring.

Common symptoms include:

• Burning or stinging eyes

• Redness

• Excessive watering

• Eye fatigue

• Blurred vision, particularly after prolonged screen use

Dry eye symptoms can often be managed with lubricating eye drops, appropriate eyelid care, adequate hydration, and lifestyle modifications.

4. Glaucoma

In certain situations, halos may be associated with glaucoma. Acute angle-closure glaucoma, in particular, can develop suddenly and requires immediate medical attention.

Warning signs may include:

• Severe eye pain

• Headache

• Nausea or vomiting

• Sudden blurred vision

• Sudden vision loss

• Redness of the eye

• Halos around lights

If halos occur suddenly along with severe eye pain, redness, nausea, or reduced vision, seek emergency medical care immediately.

5. LASIK Recovery

Some people experience halos, glare, or other visual disturbances temporarily after LASIK surgery.

These symptoms may gradually improve as the eyes heal. Regular follow-up appointments allow the eye surgeon to monitor recovery and determine whether additional treatment is necessary.

6. Corneal Swelling

The cornea is the transparent outer layer at the front of the eye. If the cornea becomes swollen because of an infection, injury, increased eye pressure, or another condition, it can affect how light enters the eye.

This may result in:

• Halos around lights

• Blurred vision

• Glare

• Increased light sensitivity

Treatment depends on the underlying cause of the corneal swelling.

7. Diabetes

Changes in blood sugar levels can temporarily affect the eye's lens and cause fluctuations in vision. Some people may experience blurred vision or visual disturbances, including halos.

Maintaining appropriate blood sugar levels and undergoing regular comprehensive eye examinations can help reduce the risk of diabetes-related eye complications.

Who Is More Likely to Experience Halos?

Certain factors may increase the likelihood of experiencing halos around lights. You may be more likely to notice them if you:

• Are over 50 years old

• Have cataracts

• Have glaucoma

• Use an outdated spectacle prescription

• Have diabetes

• Spend extended periods looking at digital screens

• Experience chronic dry eyes

Regular eye examinations can help identify potential problems before they significantly affect your vision.

When Should You See an Eye Doctor?

Occasional halos may not always indicate a serious problem. However, you should consult an eye specialist if halos:

• Occur frequently

• Become progressively worse

• Interfere with nighttime driving

• Are associated with blurred vision

• Occur with headaches

• Are accompanied by eye pain

• Develop suddenly

Early diagnosis can help identify the underlying cause and, when necessary, prevent more serious vision complications.

You can schedule a consultation with an experienced Eye Doctor.

How Are Halos Around Lights Diagnosed?

An ophthalmologist may perform a comprehensive eye examination to determine why you are experiencing halos. Depending on your symptoms, testing may include:

Vision Test

A vision test measures visual acuity and helps identify refractive errors that may be affecting your sight.

Slit-Lamp Examination

A slit-lamp examination provides a detailed view of the cornea, lens, and other structures at the front of the eye. It can help identify conditions such as cataracts and corneal abnormalities.

Eye Pressure Test

Measuring intraocular pressure can help assess the risk of glaucoma.

Dilated Eye Examination

During a dilated examination, the ophthalmologist can examine the retina and optic nerve more clearly to identify signs of various eye conditions.

Corneal Evaluation

The cornea can be examined for swelling, infection, injury, or other abnormalities that may contribute to halos.

Consulting the Best Ophthalmologist in Thane can help ensure that persistent visual symptoms are evaluated appropriately.

Treatment for Halos Around Lights

Treatment depends entirely on the underlying cause. Once the cause is identified, your eye specialist can recommend the most appropriate treatment.

Cataract Surgery

If cataracts are responsible for halos and other vision problems, cataract surgery may be recommended. During the procedure, the cloudy natural lens is replaced with an artificial intraocular lens.

Updated Glasses or Contact Lenses

If halos are caused by an incorrect or outdated prescription, updating your glasses or contact lenses may improve your vision.

Dry Eye Treatment

Dry eye management may include:

• Artificial tears

• Warm compresses

• Regular eyelid hygiene

• Reducing prolonged screen exposure

• Drinking adequate water

• Taking regular breaks from digital devices

Glaucoma Treatment

Depending on the type and severity of glaucoma, treatment may involve:

• Prescription eye drops

• Laser procedures

• Surgery

Early diagnosis and treatment are important for protecting the optic nerve and preserving vision.

Diabetes Management

Maintaining healthy blood sugar levels can help reduce fluctuations in vision and lower the risk of diabetes-related eye complications.

Can Halos Around Lights Be Prevented?

Not every cause of halos can be prevented, but healthy eye-care habits may help reduce your risk and support long-term vision.

Consider the following:

• Schedule regular eye examinations

• Use the correct spectacle prescription

• Protect your eyes from excessive UV exposure

• Keep diabetes under control

• Eat a balanced diet containing vitamin A and antioxidant-rich foods

• Stay adequately hydrated

• Follow the 20-20-20 rule during prolonged screen use

• Avoid smoking

These habits can contribute to better overall eye health.

Why Choose Dr. Ruchika Kedia?

Dr. Ruchika Kedia provides comprehensive eye-care services for patients across different age groups. Whether halos are related to cataracts, glaucoma, dry eyes, refractive errors, or another eye condition, early evaluation and personalized treatment can help protect vision.

Patients can benefit from:

• Comprehensive eye examinations

• Advanced diagnostic technology

• Personalized treatment plans

• Cataract evaluation

• Glaucoma screening

• Long-term eye-health guidance

If you are looking for an experienced Ophthalmologist in Thane, timely consultation can help determine the cause of halos and identify the appropriate treatment.

Clinic Location:
Eye Specialist

Conclusion

Understanding why some people see halos around lights at night is important because this symptom can have several possible causes. While occasional halos may be related to dry eyes, tired eyes, or refractive errors, persistent symptoms may be associated with conditions such as cataracts or glaucoma.

Regular eye examinations, healthy eye-care habits, and timely consultation with an experienced eye specialist in Thane can help identify the underlying cause and protect your vision.

If you frequently notice halos around headlights, streetlights, or other bright lights—especially when driving at night—do not ignore the symptom. Early evaluation and appropriate treatment can help maintain clearer, healthier vision and improve your confidence during nighttime activities.