Are category 4 sunglasses too dark?

What are category 4 sunglasses? These are the darkest sun lenses. Because they absorb so much visible light, they’re illegal to wear for driving. Generally, these lenses are only suitable for extreme exposure scenarios such as high-altitude mountaineering.

Can you drive with Cat 4 sunglasses?

Filter category 4 lenses only transmit between 3% and 8% of light and are not suitable for driving at any time. Sunglasses with these lenses should, by law, be labelled ‘Not suitable for driving and road use’.

Do I need category 4 sunglasses?

Cat 4 lenses provide a high level of protection from visible and UV light. These lenses are not to be worn when driving as they are too dark. These lenses will allow less than 10% of light to transmit through the lens. They are to be used for specific situations only – not for a pair of everyday sunglasses.

Do NHS staff get discount on glasses?

If you choose lens options and coatings not included in the offer (such as varifocal lenses or extra coatings), the code will also get you 50% off any lens extra. Offer valid for one pair of glasses per NHS staff member. Any additional pairs of glasses can’t be part of the same order.

Is it illegal to drive with sunglasses UK?

If wearing sunglasses means drivers can’t see clearly and therefore can’t drive safely, they could face a £2,500 fine and up to nine penalty points on their license. However, more confusingly, drivers could also face a fine if they don’t wear sunglasses and their sight is impaired as a result.

Why are Costa sunglasses not suitable for driving?

Heed the warning on the box: “Not suitable for driving,” among other things. The lens heightens contrast with a yellow glow, so if you wear them in bright sunlight, you will see dots. Just not the good kind. So keep these sunglasses in the case in full sun.

What sunglasses are legal for driving?

Sunglasses are divided into four categories based on how much light they filter out. Most sunglasses will be category two – meaning they filter between 18-43% of light and are suitable for driving. But if you have category four sunglasses – which let less than 8% of light through – they are illegal when driving.

How do you check if sunglasses are UV400?

Most sunglasses today have UV protection embedded in the lens rather than coated over it, and most reputable brands list UV protection on their label. Look for a label that says “100% protection against both UVA and UVB” or “100% protection against UV 400.”

Does UV400 block blue light?

These hardworking shades have a unique blue- or yellow-tinted lens that helps filter out damaging blue light from all of your screens. As a result, they help reduce digital eye strain, sleep disruption, and possibly the risk of macular degeneration.

Can you get prescription sunglasses on the NHS?

You can get an NHS optical voucher to help pay for the cost of glasses or contact lenses if you’re a UK resident and one or more of the following apply to you….Check your eligibility for an NHS optical voucher.

Age	Income	Other
0-15	Receive Income Support	Prisoner on leave from prison

Do NHS get discount at Specsavers?

Does Specsavers do NHS discount? Unfortunately the official line is there are no discounts for NHS Staff.

Can you drive with UV400 sunglasses?

It’s also worth remembering that, even inside your car, you’re still at risk of UV ray damage to your eyes. Some car windscreens are designed to block UV rays, although this can vary between different models, so it’s always best to get UV400 protection in your glasses to be safe.

What are Category 4 sunglasses?

Category 4 lenses let in less than 8% of light – this makes them suitable for activities like skiing, mountain climbing, high altitude hiking and desert trekking. Models available include photochromic light adjusting sunglasses with lenses that darken to category 4 in intense sun/high glare conditions.

What are the different categories of sunglasses?

Category 1 – Light yellow & pale orange. Category 2 – Orange, rose, red, amber & light brown. Category 3 – ‘Standard’ grey & brown sunglass lenses. Category 4 – Dark grey & brown sunglass lenses. Almost all the grey and brown lens sunglasses sold on the Sunglasses For Sport website are Category 3 and suitable for use in strong sun conditions.

Is the easy sunglasses offer valid in the UK?

This offer is not good on gift card purchases, gift wrap, shipping & handling, taxes, returns, or exchanges. Valid in the U.K. only. Additional restrictions may apply. Offer valid until January 31st, 2022 at 11.59 PM GMT. Easy sunglasses shopping means never having to pay for delivery.

How do I get a discount at the sunglasses shop?

Once you’ve found the designer, prescription or kids sunglasses you need, enter your discount code in the voucher code box and click ‘apply’ to receive your special savings. When will my Sunglasses Shop delivery arrive? Order by 3pm and the Sunglasses Shop will almost always be able to deliver your order to you by the next working day.