Heatwave in India Triggering Dry Eyes, Redness and Digital Eye Strain: Experts

India’s intense summer heat is no longer affecting only physical health and energy levels. Eye specialists across major hospitals are now reporting a sharp increase in eye-related complaints as prolonged heatwaves, dust exposure, dehydration and excessive screen time begin taking a visible toll on vision and ocular comfort.

Doctors say cases involving dry eyes, redness, irritation, allergies, burning sensations and digital eye strain are rising rapidly, especially among children and urban residents spending long hours indoors under air conditioning and in front of screens.

The warning comes as several parts of India continue to witness record-breaking temperatures, with extreme weather conditions creating a difficult environment for maintaining normal eye health.

Why Heatwaves Are Triggering Eye Problems

According to ophthalmologists, extreme heat affects the eye’s natural tear film, which acts as a protective lubricating layer over the surface of the eye. Hot winds, strong ultraviolet radiation, dust particles and dehydration accelerate tear evaporation, leaving the eyes dry and vulnerable to irritation.

Doctors say the problem becomes worse when people move frequently between harsh outdoor heat and air-conditioned indoor spaces. Air conditioners reduce indoor humidity, further drying the eyes and increasing discomfort.

Dr Pankaj Ranjan, Senior Eye Surgeon in the Ophthalmology Department at Safdarjung Hospital, said cases of dryness, irritation, redness and digital eye strain have been rising steadily as temperatures soar across the country.

“This vulnerability is particularly high in children due to increased vacation screen time. To safeguard vision, experts recommend five essential habits: staying hydrated, wearing UV-protective sunglasses, practising the 20-20-20 rule, avoiding direct air conditioner airflow, and seeking professional medical guidance instead of self-medicating,” said Dr Pankaj Ranjan.

He added, “Extreme heatwaves actively compromise ocular safety. The harsh environment evaporates natural lubrication rapidly, leading to widespread dryness and allergies. When mixed with indoor AC and excessive screen usage, digital eye strain peaks. Public awareness about summer eye care is now a medical necessity.”

Screen Time Is Making the Situation Worse

Doctors say rising digital exposure is compounding the impact of the heatwave, particularly among children during summer vacations.

Extended use of mobile phones, tablets, laptops and televisions reduces blinking frequency, which further destabilises the tear film and increases eye fatigue. Combined with dehydration and heat exposure, this can significantly worsen symptoms of dryness and irritation.

Dr Ranjan said, “With temperatures rising sharply across India, eye specialists are reporting an increase in complaints related to dryness, irritation, redness, allergies, burning sensation, watering, and digital eye strain during the ongoing heatwave season.”

“According to experts, prolonged exposure to extreme heat, sunlight, dust, pollution, dehydration, and excessive screen time may significantly affect overall eye health and ocular comfort. Doctors warn that high temperatures and dry environmental conditions can disturb the natural tear film of the eyes, leading to increased symptoms of dry eye and eye fatigue,” he added.

AIIMS Doctors Stress Preventative Eye Care

Specialists say many of these problems can be prevented with simple precautions and greater public awareness.

Dr Anu Malik, Assistant Professor, Cornea, Cataract and Refractive Surgery Services at the Dr R P Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, said summer eye care should now be treated as an important public health issue.

“Heatwaves are not only affecting general health but also impacting eye comfort and ocular surface health. Preventive eye care awareness during summer is extremely important,” she said.

Doctors are advising people to stay hydrated, reduce unnecessary screen exposure, wear UV-protective sunglasses and avoid direct exposure to hot winds and dusty environments.

Experts are also recommending the 20-20-20 rule, which encourages people to look away from screens every 20 minutes and focus on an object 20 feet away for at least 20 seconds to reduce eye strain.

Why Children Face Greater Risk During Summer

Children are emerging as one of the most vulnerable groups during the ongoing heatwave season. Doctors say school vacations often lead to increased indoor activity and significantly higher screen exposure, while outdoor playtime declines because of excessive heat.

This combination is increasing cases of digital eye strain and eye discomfort among younger age groups.

Specialists warn that untreated dryness and prolonged eye strain can eventually affect overall visual comfort and productivity, making early prevention and awareness crucial during prolonged periods of extreme heat.

(With inputs from ANI)