How hot weather affects your eyes

Medically reviewed by Tina Patel, Contact Lens Optician at Feel Good Contacts.

Summer Eye Problems

The eyes can be affected by all sorts of weather, and while eye problems can be experienced at any time of year, certain eye issues are more prevalent during the hot weather months of the summer. Here are some common summer eye health problems:

Dry eyes

The risk of dry eyes can increase during the summer due to high temperatures, use of fans and air conditioning. Typical symptoms include redness in the eyes, sore and gritty eyes that are more watery than usual and light sensitivity.


Not only can the sunshine cause sunburn, but it can also cause a pterygium or a pinguecula if you're not careful to shield your eyes from harmful UVA and UVB rays. Wearing high-quality sunglasses with protection during the summer months is essential if you wish to avoid various problems, including dry eyes, blurry vision, and a gritty feeling.

Increased risk of infection

While eye infections can occur throughout the year, certain summer activities can increase the risk of infection. For example, swimming and camping may expose you to pathogens such as Acanthamoeba, resulting in Acanthamoeba Keratitis.

Summer eye allergies

Eye allergies are often associated with springtime when the pollen count increases. Nevertheless, specific allergens are more common during the summer months, such as moulds and seeds. These allergens can increase the symptoms of eye allergies, causing dry and itchy eyes and a burning sensation.

woman itching eyes

Caring for your eyes during the summer

It is just as important to take care of your eyes during the summer as it is the rest of the year. You should still follow the same eye care rules, such as washing your hands before handling contact lenses and ensuring you are wearing the right eyewear when engaging in certain sports and activities. In addition to this, here are some other things you can do to keep your eyes safe and healthy:

Wear sunglasses

Wearing sunglasses with UVA and UVB protection is essential, even when it's cloudy outside. Even if you wear contact lenses with built-in UV protection, it's still important to wear sunglasses as they protect the surrounding eye area and act as a barrier between your eyes and the summer heat to prevent dry eye.

Drink lots of water

The hot weather during the summer months is more likely to cause dehydration, affecting your body's ability to produce tears. This can lead to dry eye, so staying hydrated by drinking lots of water is ever so important.

Use eye drops

If you find yourself with dry eyes because of the hot summer weather, lubricating eye drops can help. Eye drops replicate your natural tears to ensure long-term hydration, and relieve dryness and irritation.

Limit your exposure to allergens

While it's not entirely possible to avoid exposure to all allergens, especially those outside, you can take precautions to limit your exposure and protect your eyes from allergic reactions. Washing your face as soon as you come in from outside and wearing sunglasses can certainly help.

Wear goggles

No matter where you’re swimming, be it a pool or a lake, wearing swimming goggles will prevent contaminants such as Acanthamoeba from entering your eyes and causing bacterial infections such as Acanthamoeba Keratitis and other eye diseases.

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