prescription swimming goggles

IST Corona M55

  • IST Corona M55
  • IST Corona M55
  • IST Corona M55
  • IST Corona M55

Usually despatched within 24 Hours

IST Corona M55

Superior fitting and comfort

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The Corona M55 has been one of the most popular IST diving masks (this version with prescription lenses) and its superior fitting and comfort are the reasons behind the success. Its swivel buckle allows the diver to adjust the mask to the most desirable position. The low internal volume gives unrestricted view.

  • to correct long and short sight
  • available with bifocal lenses
  • comes in 3 different colours
  • same or different powers in each eye
  • pre-assembled
  • hard plastic case

At Butterflies Healthcare, we try to make sure our customers are always 100% happy, not only with the products they buy but also the service we provide. However, buying online can seem more difficult for certain products. We want to reassure you that we offer you an easy and trustworthy online service. As we are owned by a qualified optometrist, we really understand your visual needs.

Our customer service team are always happy to offer advice and guidance for product selection or any enquiry you may have. We can offer expert advice on the best prescription goggles for your needs and are able to supply prescription goggles to suit most people.

You have the right to cancel the contract at any time up to the end of 14 days after the day on which you receive the goods (30 days in the case of faulty/damaged goods). To exercise your right of cancellation, you must give written notice to us by post or e-mail giving details of the goods ordered and (where appropriate) their delivery. You can use this model instruction to cancel email template if you wish.

Off the shelf goggles

If you purchase any ‘off the shelf’ goggle from us, so long as it has not been used in the water you can return in the original packaging for a full refund or exchange.

Custom made goggles

Custom made products, such as the Swimvision II, can only be returned if there is a fault with the goggles. For this reason we offer a trial fitting service where we can send you an empty goggle to try on first to ensure the fit is suitable. Please contact us for more details.

Should you find any fault with your goods then simply return them to us explaining the problem. We will then either rectify the matter or offer a full refund. Please bear in mind the following:

  • When you receive items you have ordered, we recognise that you may want to try them on to ensure the fit and feel is as you envisaged. In the case of swimming goggles do this before using in the pool, for swimwear wear underwear underneath.
  • Please remember, we can only issue you with a refund or exchange if the returned product concerned is in a fully re-saleable condition. This means that they must be unused and in the original packaging.
  • Return postage and packing costs will be met by the customer (except for faulty/damaged items) but no postage and packing charges will be added for exchanged items.

Your rights to return goods are protected under the EU Distance Selling Directive which can be found at

All orders are delivered from the UK


  • £3.00 2nd class (4-5 working days)
  • £4.00 1st class (1-2 working days)
  • £8.00 Special Delivery or APC overnight* (next working day)


  • from £5.00-£13.00 (depending upon location) by DPD Direct
  • from £10.00-£20.00 (depending upon location) by DPD Classic Parcel

Rest of the World

  • £9.00 (Australia & New Zealand) and £13.00 (USA & Canada) by DPD Direct
  • from £15.00-£60.00 (depending upon location) by DPD Air Classic

PLEASE NOTE: orders shipped outside of the EU are processed excluding UK taxes but import duties and/or taxes may be applicable in your delivery country for which YOU ARE LIABLE.

General Information

Your order will be sent to the delivery address according to this schedule:

  • For goods that are held 'in-stock', we aim to despatch orders placed before 1pm Monday to Friday the same day (excluding bank holidays). Orders placed after 1pm will leave on the next working day (so on Friday this will normally mean Monday)
  • Items we have to order in are usually despatched within a week
  • Custom made goggles and masks are usually despatched within 2-3 weeks If you need your order urgently or by a specific date please contact us to ensure we can meet your delivery requirements.

* Special Delivery/APC Overnight does not cover Saturday delivery. Therefore, orders placed after 1pm Thursday and before 1pm Friday will be despatched on Friday and delivered on Monday. Also Special Delivery/APC Overnight do not offer next day delivery to Northern Ireland, certain parts of the Scottish Highlands and offshore islands (e.g. Channel Islands).

We DO NOT deliver to shipping houses such as Aramex House.

International orders will be despatched in accordance with the above schedule but can take up to 28 days to arrive.

Feefo Reviews
40 Hour(s) ago
I have only had chance to test them in a pool but so far so good.
Feefo Reviews
Good fit and good prescription
Feefo Reviews
Does the job admirably
Feefo Reviews
Great product and quick service/delivery to Australia. Only thing I would have loved is an alert or tracking number for the international shipping.
Feefo Reviews
Mask is of good quality and seals well.
Feefo Reviews
Feefo Reviews
Have only tried in the pool so far but first indications are promising. Vision is great.
Feefo Reviews
nice to see under water again
Feefo Reviews
Appears excellent, but haven't had a chance to use them properly yet.
Feefo Reviews
Very quick with delivery and very good value for money. I'm currently in Madeira and have snorkelled with them everyday with no issues.
Feefo Reviews
Good goggles, fit well
Feefo Reviews
The goggles are excellent quality and delivery was timely.
Feefo Reviews
Product is great, did its job perfectly.
Feefo Reviews
Do the job. Seem good so far...
Feefo Reviews
Worked well.
Feefo Reviews
great product
Feefo Reviews
I can read better with these than my glasses lol
Feefo Reviews
Good mask - nice to be able to see again underwater!
Feefo Reviews
Fit is perfect, prescription is right. Still have to go snorkeling to know how they hold up in the water.
Feefo Reviews
Excellent customer service, my diving mask did not arrive but when I told the company another was sent out free of charge and arrived the very next day
View More Reviews

Contact Us

0330 660 0796 Open 9am to 5pm, Monday-Friday ?subject=Prescription Swimming Goggles - United Kingdom">Click here to email us
Butterflies Healthcare
The Granary
Manor Park
OX17 2AG
United Kingdom
Feefo Gold Trusted Service