Firecracker Smoke and Eye Irritation: Why Burning, Red and Watery Eyes are Common After Diwali

You may not have burst a single firecracker during Diwali, yet wake up the next morning with red, burning and watery eyes. This is because firecracker pollution does not affect only those who set off crackers. The smoke and pollutants released into the air can travel across neighbourhoods, exposing even people who celebrate indoors to harmful irritants.

While mild eye irritation often settles within a day or two, prolonged exposure to firecracker smoke can aggravate existing eye conditions and sometimes cause more serious problems. We spoke to Dr Shibal Bhartiya, Clinical Director - Ophthalmology, Marengo Asia Hospitals, Gurugram and Dr Girish Shankar Budhrani, Chief Medical Officer at R J Sankara Eye Hospital, Panvel for more insights.

Why Does Firecracker Smoke Make Your Eyes Burn?

Firecracker smoke contains fine particulate matter that can remain suspended in the air for several hours. It also releases gases such as sulphur dioxide and nitrogen oxides, along with metal salts, including barium, strontium, copper and aluminium, which are used to create different colours.

When these pollutants come into contact with the eyes, they irritate the conjunctiva, the thin membrane covering the white part of the eye and the inner surface of the eyelids. They can also disturb the tear film, a thin protective layer that keeps the eye surface moist and comfortable.

When the tear film becomes unstable, the eyes may start burning, turning red or feeling gritty, as though something is stuck inside them. Excessive watering is another common response. It is actually the eye's natural attempt to flush out the irritants.

Also Read: If Your Child Loves Diwali Firecrackers, Here’s How You Can Protect Them From Serious Eye Injuries

Who Is More Vulnerable to Eye Irritation After Diwali?

Although anyone can experience eye irritation after exposure to firecracker smoke, some people are more susceptible.

• People with dry eye disease may experience worsening symptoms because pollution further disrupts their already unstable tear film.
• Those with allergies may develop increased redness, itching and watering. People with asthma or other respiratory allergies may also be more sensitive to polluted air.
• Contact lens users need to be particularly careful. Fine particles can become trapped beneath contact lenses and irritate the cornea, the transparent front surface of the eye. This can increase the risk of corneal abrasions and infections.
• Children and older adults may also experience symptoms more quickly.
• People with existing eye conditions, including glaucoma, should continue their prescribed medication without interruption.

NOTE: Pollution-related irritation is not a reason to stop their regular eye drops.

How to Protect Your Eyes After Diwali

If your eyes feel irritated after exposure to firecracker smoke, a few simple measures can help provide relief.

• Use lubricating eye drops: Preservative-free artificial tears can help restore moisture and flush out irritants. They can be used as directed, particularly when stepping outdoors.
• Apply cool compresses: Place a clean, cool cloth over closed eyelids for a few minutes to soothe burning and discomfort.
• Avoid rubbing your eyes: Rubbing can worsen inflammation and potentially damage the corneal surface.
• Switch to glasses: Contact lens users should avoid wearing lenses for a few days while their eyes recover.
• Wash your face: Clean your face gently. If particles enter your eyes, rinse them gently with clean water.
• Avoid self-medication: Do not use antibiotic or steroid eye drops without consulting an ophthalmologist. Unnecessary use of medicated drops can cause complications and delay appropriate treatment.

Prevention is equally important. Keep windows and doors closed when firecracker smoke levels are high. Avoid standing near areas where crackers are being burst and wear wraparound glasses if you need to step outdoors. Using an indoor air purifier can also help reduce exposure to airborne pollutants.

Also Read: Firecracker Eye Injury: What Happens When a Spark Hits Your Eye?

When Should You See an Eye Doctor?

Mild burning, redness and watering caused by smoke exposure should generally improve within 24-48 hours once exposure stops and the eyes receive appropriate care.

However, do not ignore symptoms that persist or become severe. Consult an ophthalmologist if you experience:

• Significant or worsening eye pain
• Sensitivity to light
• Blurred or reduced vision
• Thick discharge from the eyes
• Persistent redness, burning or watering despite using lubricating drops

These symptoms may indicate a corneal scratch, an infection or a flare-up of an existing dry eye condition that requires medical treatment. It is important to remember that not every case of red or watery eyes after Diwali is simply due to pollution. An eye examination can help identify the underlying problem and ensure appropriate treatment.