GLASGOW sunbathers are being issued with a stark warning as the city and its surrounding areas are set to face a mini heatwave this week.

The public is being urged to protect themselves against sunburn of the eyes.

Thousands of people risk permanent damage to their eyesight by wearing fast fashion sunglasses that offer little or no Ultraviolet (UV) protection.

READ MORE: Temperatures are set to sizzle in Glasgow this week – hitting highs of 23C

The caution comes as Glasgow is set to experience two weeks of sunshine that could see temperatures soar to 23°C.

Almost half of all Brits say they choose fashion frames when shopping for new sunglasses, while just 20% admit to looking out for the CE mark, which shows glasses have been made to appropriate standards.

An estimated 51% of shoppers buy their sunglasses from online or high street fashion retailers, opting for the latest styles and trends, and not necessarily frames or lenses that provide the best protection or coverage, according to research by leading eye care provider Optical Express.

READ MORE: Temperatures are set to sizzle in Glasgow this week – hitting highs of 23C

Stephen Hannan, clinical services director at the high street optician, said: “ Sunglasses may be a great fashion accessory to team with your favourite outfit, but being sunwise can help to avoid a variety of eye health problems.

“The sun’s UV rays are stronger throughout summer and long-term exposure can cause a variety of eye problems, such as photokeratitis, sunburn for the eyes, which can cause red eye, tearing, sensitivity to light and feeling like you have grit in your eyes.”

Four ways to keep your eyes protected this week:

1. UV 400 protection

It’s important to choose the right pair of sunglasses, so always try to choose a pair that offers UV 400 protection, as this can eliminate 97-100% of UV rays.

Even if you are wearing sunglasses that are tinted, there are options available that offer no UV protection and can damage your eyes more than not wearing your sunglasses. Tinted lenses can trick the pupils into dilating, allowing more UV light to enter the eye, without offering protection.

2. Check for a CE Mark

Ensure that sunglasses carry a CE or British Standard Mark, as this indicates that the sunglasses offer a good level of protection and that the product complies with the essential requirements of European Health, Safety and Protection Legislation. That way, you can be sure your eyes are protected.

3. Protect children’s eyes

80% of lifetime exposure to UV rays happens before the age of 18, so it’s essential to protect children’s eyes against the sun. Children’s eyes are more likely to be irreversibly damaged by the sun, as the cornea, lens and fluid are clearer allowing more light to reach the retina. It’s imperative that children wear high quality protective sunglasses.

4. Check how much light can be let in around the frames

Although sunglasses may offer excellent levels of protection in the lenses, it is important to make sure the frames fit your face well enough to make sure light can’t easily enter your eyes from for example the side or above.

Spending time outdoors between 10am and 2pm when the sun’s rays are strongest means the public needs to be even more vigilant and protect their sight.

If you have any concerns about your sight, book an appointment to see your optometrist at your earliest opportunity.