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Ziena Kai Tortoiseshell

Ziena Kai Tortoiseshell


The all new Kai is the latest addition to the Ziena Eyewear range of moisture chamber spectacles with soft-feel silicone shield eye cup.

Key features

  • Unisex dark tortoiseshell frame design that is on trend with current high street fashions in spectacles
  • Designed to be a small to medium fit, smaller than the Ziena Nereus or Verona
  • Suitable for young adults, small adults, and people with slim foreheads. Not suitable for children
  • Adjustable nose pads and bendable arms enable you to achieve the optimum fit
  • Moisture chamber spectacles with soft-feel silicone shield eye cup
  • Designed for daily wear for relief of symptoms of dry eyes, hay fever, Bell’s Palsy
  • Ideal for use as computer glasses if you are suffering from dry eyes in an air-conditioned office
  • Also provides protection from wind, dust, and airborne allergens such as pollen
  • Eye cup is made from medical grade silicone material that is easy to keep clean. It is easy to remove and replace the eye cup for cleaning and lens care
  • The purchase price includes your first silicone eye cup, which will need to be replaced periodically (replacements are available from us)
  • You can also purchase an optional black eye cup which reduces glare from the sun around the periphery of your vision. The translucent white and black eye cups are interchangeable
  • Genuine Ziena lenses for optimum vision clarity and maximum UV protection
  • Unisex-styled hand polished frames with spring hinges for a more comfortable fit
  • Supplied with lined leather case and microfibre bag (which also acts as a lens cloth)
  • Designed to be suitable for fitting with prescription lenses (see limits stated below)

See our blog article on the Ziena Kai: Introducing the Kai - the new smaller frame from Ziena Eyewear

Can Ziena glasses relieve my dry eye symptoms?

FREE standard delivery for UK orders

  • If you require delivery within the UK, we will send your order FREE by Royal Mail tracked 48 in 2 - 5 days.
  • If you need the glasses sooner, you can select Priority delivery for only £7.99

Product eligible for EU customer discount

This product is eligible for our EU residents discount. If your delivery address is in the EU, we will give you 20% off the total price of products in your shopping basket:

Often bought with this product

Anti-fog lens cloth

anti fog cloth

  • Lens fogging can be an issue in some situations when wearing moisture chamber and windproof glasses and hay fever goggles
  • This anti fog cloth is really easy and quick to use. One wipe on each lens is effective at stopping lens fogging for up to 48 hours
  • A useful accessory to have around as it works just as well for a wide range of other eyewear from prescription spectacles to Covid visors

Price: £7.99 Buy now

Spare Ziena eye cup

Ziena eye cup


  • You will need to replace the eye cup from time to time.
  • Longevity depends on regularity and type of use.
  • See our product care guidelines

Price: £35.99 > Buy now

Product benefits

In addition from these benefits, most customers find that the protective Ziena silicone eye cup improves protection from the sun's glare compared to normal wraparound sunglasses, especially if you purchase the optional black eye cup.

When wearing Ziena glasses, your field of peripheral vision is slightly reduced. When trying on the product, ensure that you assess whether it is suitable for your intended use.

We do not recommend wearing them for activities such as cycling or driving, where good peripheral vision is essential.

Watch our video on the Ziena Kai

Choice of lens colours

  • Choose the lens colour you want from the menu above - see guidance on Lens colours
  • All lenses provide 100% UV protection, anti-fog coated

Note: if your preferred lens choice is showing as "Sold Out", please email us to check when it will next be in stock.

Recommended limits if fitting prescription lenses

      Frame size

      • Lens dimensions: 52 mm wide x 33 mm deep
      • Small to Medium fit
      • DBL (distance between lenses): 18 mm
      • Frame width: 130 mm

        Dispatch and delivery information

        Customer Reviews

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        Customer Reviews

        Based on 14 reviews
        Camilla Newton
        No more streaming eyes from hay fever

        Excellent customer service, quick delivery, and the frames fit well. They take a bit of getting used to at first, but I tested myself outdoors without an antihistamine, and my eyes didn't stream at all! Without them, half an hour earlier I'd had to go back inside as the hay fever was too annoying. They are definitely going to be helpful, would recommend, thank you

        Victoria Marsden
        Fantastic for my dry eye

        I bought these glasses (I normally have to buy children’s) to keep out the wind and I have become photophobic due to an eye operation that went wrong. They have meant I can go outside in all weathers and they stop my eyes from drying out but also protect my eyes from bright lights. The fact they look like normal glasses is perfect

        Funmilayo Vaughan
        Love it

        What a wonderful difference walking has made with my Kai glasses . No more having to dab my eyes every couple of minutes as I walk . It is worth every £ and I’m so glad I came across this site . Thank you .

        Delighted with my new glasses!

        I wore my new Ziena Kai glasses for the first time today on a walk and they were brilliant - I can't remember the last time I didn't spend the whole day mopping away streaming tears! They are a comfortable fit and the photochromic contrast lenses John kindly fitted them with were perfect for everyday outdoors wear. Many thanks for the helpful service and very fast delivery.

        Dear Lesley, thanks for taking the time to send us your feedback on the moisture chamber glasses.

        I am so glad that your Ziena Kai is making such an improvement to your quality of life.

        Best regards, John

        Very professional repair service

        Just a line to say I've now received my repaired glasses and to thank you for the excellent repair job! You are clearly an expert at this and they look as good as new.