A vision expert has issued an urgent warning to contact lens wearers as the UK experiences its third heatwave of the year, with the Met Office declaring a red alert for very high pollen levels across England and Wales. Dr Stephen Hannan, from Optical Express, cautioned that soaring temperatures up to 35°C could trigger a surge in itchy, irritated, and watery eyes among millions of Britons.
Red Alert for Pollen
The Met Office red warning, effective from July 8, indicates 'very high' pollen counts that can cause intense symptoms such as frequent sneezing, itchy eyes, and congestion for most sufferers. Grass and weed pollen levels are particularly high, putting millions at risk of severe allergic reactions.
“When the eyes are exposed to allergens such as pollen, dust or pet dander, the body releases histamines as part of its immune response,” Dr Hannan explained. “This leads to inflammation, redness, itching and watering – all of which can significantly affect comfort and vision quality.”
Top Tips for Contact Lens Wearers
Dr Hannan shared four key recommendations to reduce eye irritation during hay fever season:
Avoid Contact Lenses During Flare-ups
Contact lenses can trap allergens like pollen and dust against the eye's surface, prolonging irritation. Switching to glasses temporarily allows the eyes to recover more quickly. Wraparound sunglasses can also help reduce allergen exposure outdoors while providing UV protection.
Use Lubricating Eye Drops
Lubricating artificial tear drops help wash away allergens and restore moisture to the eye's surface. This is especially beneficial when dryness from screen use compounds symptoms.
Consider Targeted Anti-Allergy Treatments
Over-the-counter and prescription antihistamine eye drops, such as Olopatadine (branded as Opatanol), can effectively relieve itching, redness, and swelling. Oral antihistamines may also help control systemic allergy symptoms, though some can worsen dry eye, so combining them with lubricating drops is often recommended.
Reduce Exposure to Allergens
Simple steps like keeping windows closed during high pollen counts, using anti-allergy bedding, and applying cold compresses can significantly reduce symptoms. Dr Hannan advises against rubbing the eyes, as this can worsen inflammation and release more histamine.



