According to Doctor Pham Huy Vu Tung from the High-Tech Eye Center at Tam Anh General Hospital in TP HCM, sudden environmental changes or unusual weather conditions can negatively impact eye health. Under intense sunlight, ultraviolet (UV) rays directly hitting unprotected eyes can cause corneal burns, resulting in pain, tearing, and blurred vision. Long-term, regular exposure to UV rays also increases the risk of cataracts and macular degeneration – conditions that cause irreversible vision loss.

Rain can carry dust, bacteria, and allergens from the air. When these get into the eyes, they can easily lead to conjunctivitis, causing redness, itching, and constant tearing. Without prompt and proper treatment, the inflammation can worsen, spread to the cornea, and leave scars that impair vision. Contact lens wearers should be especially cautious as humid environments promote bacterial growth, increasing the risk of corneal ulcers. This is a serious complication that can lead to blindness.

To protect your eyes during unpredictable weather, especially during long holidays, Doctor Tung advises everyone to shield their eyes when outdoors, wear UV-protective sunglasses, or use rain visors. If your eyes feel gritty or itchy, avoid rubbing them as this can cause foreign particles to scratch the cornea. Instead, rinse your eyes immediately with saline solution to cleanse and soothe the surface of the eyeball. People who frequently work with computers and phones should also use artificial tears to reduce dryness, maintain regular blinking, and rest their eyes every 20-30 minutes of continuous work.

Doctor Tung advises a woman on eye examination. Photo: *Tam Anh General Hospital*

If you experience persistent symptoms like redness, pain, decreased vision, unusual glare, or persistent blurring, seek examination at a hospital with an ophthalmology department. These could be signs of corneal damage or more serious eye conditions.

A good diet and healthy lifestyle play a vital role in maintaining long-term vision. It's recommended to eat plenty of dark green vegetables, fresh fruits rich in vitamins A, C, and E, and fish rich in omega-3s to nourish the retina and slow down eye aging.

Doctor Tung also emphasizes the importance of drinking enough water daily, getting enough sleep, and limiting alcohol and tobacco consumption to reduce the risk of dry eyes and retinal diseases. Regular exercise also contributes to improved blood circulation, thereby enhancing eye health.

Nhat Thanh