By Dr Aman Sutaria.
Summer in Southampton has a certain energy to it. The Solent fills with boats, the Common comes back to life, and the sun, when it does appear, feels genuinely earned. It is the time of year when most people are at their most outdoorsy and least inclined to think about their health. Which is exactly why it is worth pausing to think about your eyes — they tend to get overlooked in the usual summer health conversation.
UV radiation and long-term risk Sunscreen is routine, but eye protection gets far less attention. A long day in strong sunlight without it can cause photokeratitis — essentially sunburn of the surface of the eye, causing pain, redness, and light sensitivity. It usually resolves within a day or two, but is quite uncomfortable.[1]
The longer-term picture matters more. Cumulative UV exposure is an established risk factor for cataracts, a leading cause of blindness worldwide.[5] UV levels also remain significant on overcast days, meaning a grey afternoon on the Common can cause quiet damage.[5] Children’s eyes are particularly vulnerable, as the lens is clearer and offers less natural protection.[2,4]
A good pair of sunglasses goes a long way. Look for lenses labelled UV400, or check for the CE mark or British Standard mark (BS EN ISO 12312-1).[2] Price is not a reliable guide — check the label rather than the brand. The same rule applies for children.
Swimming and eye infections Chlorinated pools can leave eyes sore but it’s short-lived. Open water is different. A microscopic organism found in rivers and the sea can cause a serious corneal infection. It is rare, but contact lens wearers are at much higher risk, as lenses trap the organism against the eye.[3] Remove lenses before swimming or wear goggles. Red, painful eyes after swimming warrant prompt review.
Hay fever Grass pollen season runs May to July, often causing itchy, watery eyes — allergic conjunctivitis.[6] Pharmacy antihistamine drops help, as does a cold damp cloth and sunglasses outdoors. Avoid rubbing — it makes things worse.
When to get help This article is general information only. For concerns, see your GP or optician, or call NHS 111.
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