Nighttime driving should be clear and comfortable, but some people notice bright rings or glowing circles around headlights, streetlights, and traffic signals. 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 factors such as tired eyes, dry eyes, or dirty spectacles. However, frequent or persistent halos may also indicate an underlying eye condition that needs professional evaluation.

This visual disturbance can make nighttime driving more difficult, affect your ability to read road signs, and interfere with daily activities after sunset. Identifying the underlying cause at an early stage and consulting an experienced Ophthalmologist in Thane can help protect your eyesight and support better long-term eye health.

What Are Halos Around Lights?

Halos are bright, circular rings that appear around light sources. They are generally more noticeable at night because the pupils naturally become larger in darker surroundings.

You may notice halos around:

• Car headlights

• Streetlights

• Traffic signals

• LED lights

• Decorative lights

• Lamps

While occasional halos may not be a cause for concern, frequent or worsening symptoms should be evaluated by an eye specialist.

Why Do Some People See Halos Around Lights at Night?

There are several possible reasons for seeing halos around lights. Some causes are temporary and manageable, while others may require medical treatment.

1. Cataracts

Cataracts are one of the common causes of halos and glare. They occur when the eye's natural lens becomes cloudy. Instead of passing through the lens normally, light becomes scattered, which can result in halos, glare, and blurred vision.

Other common cataract symptoms include:

• Blurred or cloudy vision

• Difficulty seeing while driving at night

• Faded colours

• Frequent changes in spectacle power

• Increased sensitivity to bright light

The risk of cataracts generally increases with age.

2. Refractive Errors

Refractive errors can also cause halos or glare around bright lights. Common examples include:

• Nearsightedness (myopia)

• Farsightedness (hyperopia)

• Astigmatism

These conditions occur when light does not focus properly on the retina. An outdated spectacle prescription can make nighttime visual disturbances more noticeable.

A comprehensive vision examination and updated glasses or contact lenses may improve symptoms. If halos continue even after correcting the prescription, further evaluation by an eye specialist may be necessary.

3. Dry Eye Syndrome

Dry eyes are another frequent reason people may notice halos around lights.

The tear film normally creates a smooth optical surface over the eye. When this tear film becomes unstable or uneven, light can scatter and cause halos, glare, or temporary blurred vision.

Other symptoms of dry eye may include:

• Burning or stinging sensation

• Redness

• Excessive watering

• Eye fatigue

• Blurred vision after prolonged screen use

Mild dry eye can often be managed through lubricating eye drops, proper eyelid care, adequate hydration, and healthy screen-use habits.

4. Glaucoma

In certain cases, halos around lights can be associated with glaucoma, especially acute angle-closure glaucoma.

Acute angle-closure glaucoma is a medical emergency and can cause a rapid increase in eye pressure.

Warning symptoms may include:

• Severe eye pain

• Headache

• Nausea or vomiting

• Blurred vision

• Sudden vision loss

• Redness of the eye

• Halos around lights

If these symptoms develop suddenly, seek immediate medical attention rather than waiting for a routine appointment.

5. LASIK Recovery

Some patients experience halos, glare, or similar visual disturbances temporarily following LASIK surgery.

These symptoms may improve as the eyes heal, although the recovery period varies between individuals. Regular follow-up appointments with your eye surgeon help monitor healing and ensure appropriate care.

6. Corneal Swelling

The cornea is the transparent front surface of the eye that helps focus incoming light. If the cornea becomes swollen because of infection, injury, increased eye pressure, or another condition, light may scatter abnormally.

This can result in:

• Halos around lights

• Blurred vision

• Glare

• Increased sensitivity to light

Treatment depends on what is causing the corneal swelling.

7. Diabetes

Changes in blood sugar levels can temporarily affect the eye's lens and cause fluctuations in vision. This may result in blurred vision and, in some cases, increased awareness of halos or glare.

Maintaining healthy blood sugar levels and attending regular comprehensive eye examinations can help reduce the risk of diabetes-related vision problems.

Who Is More Likely to Experience Halos?

Certain factors may increase the likelihood of experiencing halos around lights. You may be at greater risk if you:

• Are over 50 years of age

• Have cataracts

• Have glaucoma

• Use an outdated spectacle prescription

• Have diabetes

• Spend extended periods using digital screens

• Have chronic dry eyes

Routine eye examinations can help detect many eye conditions early, even before significant vision loss occurs.

When Should You See an Eye Doctor?

Occasional halos do not necessarily mean that you have an eye disease. However, professional evaluation is recommended if halos:

• Occur frequently

• Become progressively worse

• Interfere with nighttime driving

• Occur along with blurred vision

• Are associated with headaches

• Develop with eye pain

• Appear suddenly

Prompt diagnosis can help identify the underlying cause and allow appropriate treatment to begin when necessary.

You can schedule a consultation with an experienced Eye Doctor.

How Are Halos Around Lights Diagnosed?

An ophthalmologist may perform a detailed eye examination to determine the reason behind your symptoms. Depending on your condition, the evaluation may include the following tests.

Vision Test

A vision test measures visual acuity and helps identify refractive errors such as myopia, hyperopia, and astigmatism.

Slit-Lamp Examination

A slit-lamp examination allows the doctor to closely examine the cornea, lens, and other structures at the front of the eye. It can help identify cataracts, corneal problems, and other abnormalities.

Eye Pressure Test

Measuring intraocular pressure can help assess the risk of glaucoma and other conditions associated with increased eye pressure.

Dilated Eye Examination

A dilated eye examination allows the ophthalmologist to obtain a clearer view of the retina and optic nerve and check for signs of various eye diseases.

Corneal Evaluation

The cornea can be examined for swelling, infection, injury, or other abnormalities that may affect how light enters the eye.

Consulting the Best Ophthalmologist in Thane can help ensure that persistent halos and other visual symptoms receive a comprehensive evaluation.

Treatment for Halos Around Lights

Treatment depends on the underlying cause. Your eye specialist will recommend an appropriate treatment plan after identifying what is causing the halos.

Cataract Surgery

If cataracts are responsible for halos, glare, and reduced vision, cataract surgery may be recommended. The cloudy natural lens is replaced with an artificial intraocular lens to improve vision.

Updated Glasses or Contact Lenses

If an incorrect or outdated prescription is responsible for halos, updating your glasses or contact lenses may significantly improve visual clarity.

Dry Eye Treatment

Treatment for dry eyes may include:

• Artificial tears

• Warm compresses

• Regular eyelid hygiene

• Reducing prolonged screen exposure

• Taking frequent screen breaks

• Drinking adequate water

Glaucoma Management

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

• Prescription eye drops

• Laser treatment

• Surgical procedures

Early management is important to reduce the risk of permanent optic nerve damage and vision loss.

Diabetes Management

Keeping blood sugar levels within the recommended range can help minimize fluctuations in vision and reduce the risk of diabetes-related eye complications.

Can Halos Around Lights Be Prevented?

Not all causes of halos can be prevented, but adopting healthy eye-care habits can help reduce certain risk factors.

You can support your eye health by:

• Scheduling regular eye examinations

• Wearing the correct prescribed glasses

• Protecting your eyes from excessive UV exposure

• Keeping diabetes under control

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

• Staying adequately hydrated

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

• Avoiding smoking

These habits can contribute to healthier eyes and better long-term vision.

Why Choose Dr. Ruchika Kedia?

Dr. Ruchika Kedia provides comprehensive eye-care services for patients of 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 receive:

• Comprehensive eye examinations

• Advanced diagnostic evaluation

• Personalized treatment plans

• Cataract assessment

• Glaucoma screening

• Long-term eye-health guidance

If you are searching for an experienced Ophthalmologist in Thane, timely consultation can help determine the cause of halos and guide you toward 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 many possible causes. While occasional halos may be linked to dry eyes, tired eyes, or refractive errors, persistent or severe symptoms may indicate conditions such as cataracts, corneal problems, or glaucoma.

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

If you frequently notice halos around headlights, streetlights, or other bright lights—particularly when driving at night—do not ignore the symptom. Early evaluation can help identify the cause and ensure that appropriate treatment is provided when needed.