Severe heat continues to intensify across several parts of the country. In light of this, doctors have warned that prolonged exposure to high temperatures can not only impact general physical health but also negatively affect the functioning of the eyes and the nervous system—particularly in children, the elderly, and those with underlying health conditions. Health experts state that rising temperatures, dehydration, and prolonged exposure to sunlight can disrupt the body's internal equilibrium.

This can trigger symptoms such as fatigue, dizziness, severe headaches, migraines, heat exhaustion, and even neurological complications in vulnerable individuals. Doctors have noted an increase in the number of patients reporting heat-related illnesses at hospitals across the NCR region; these cases include symptoms such as eye irritation, headaches caused by dehydration, and heat-induced neurological manifestations.

**Approximately 20% Rise in OPD Patients**
Dr. Vineet Suri, Senior Consultant in Neurology at Indraprastha Apollo Hospitals in Delhi, stated that the heatwave is now beginning to manifest effects distinct from typical heat-related ailments. There is a noticeable rise in neurological complaints among patients visiting the Outpatient Department (OPD). An increasing number of people are presenting with symptoms such as severe headaches, dizziness, confusion, fainting spells, an aggravation of pre-existing neurological conditions, and, notably, an exacerbation of migraines.

Dr. Suri explained that prolonged exposure to intense sunlight can trigger or worsen migraines in certain individuals. He clarified that extreme heat and dehydration (fluid loss) can compromise blood flow to the brain, disrupt electrolyte balance, and place significant stress on the nervous system—particularly in vulnerable populations. Symptoms associated with this include persistent confusion, difficulty speaking, abnormal sleep patterns, seizures, or loss of consciousness. These signs must not be ignored, as they may indicate a severe neurological emergency requiring immediate medical attention. Avoid Stepping Out During the Afternoon
Dr. Sushma Sharma, Director of the Department of Neurology at Marengo Asia Hospitals, stated that individuals suffering from migraines, epilepsy, and other neurological disorders may experience an aggravation of symptoms due to extreme heat, hot nights, and disrupted sleep caused by power outages. Dr. Sharma emphasized that during periods of extreme heat, it is crucial to avoid venturing outdoors during the peak afternoon hours whenever possible.

If stepping out is unavoidable, individuals should take precautions such as carrying an umbrella, wearing sunglasses, and covering their heads. Staying hydrated during hot weather is equally important, as excessive sweating can lead to dehydration, which in turn may cause confusion and neurological complications. She advised people to consume natural electrolyte-rich beverages—such as coconut water, buttermilk, and fresh fruit juices—to replenish the fluids lost through excessive sweating. This season also heightens the risk of eye irritation and infections.

Increased Eye Dryness, Irritation, Redness, and Strain
Dr. Neeraj Sandhuja, Director of the Viyan Eye and Retina Center, noted that exposure to sunlight, hot winds, dust, and dehydration commonly leads to eye strain and discomfort. The summer season can impact eye health in various ways. Prolonged exposure to intense sunlight, hot winds, dust, and dehydration can result in eye dryness, irritation, redness, and strain. During this season, many people experience burning sensations, itching, or watery eyes. We also encounter cases of dry eye syndrome, allergic conjunctivitis, and corneal sunburn.

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