prescription swimming goggles

Hydrotac stick on bifocal lenses

Usually despatched within 24 Hours

Hydrotac stick on bifocal lenses

Hydrotac stick on bifocal lenses

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Hydrotac Stick on bifocal lenses allows divers a quick & economical solution to adding magnification in dive masks so reading gauges, watches or camera settings is possible.

If you have difficulty seeing details underwater these can be fitted to any mask with easy instructions:

  • simply clean mask
  • place lenses in warm water
  • position in mask and pat dry with a lint free cloth or towel
  • allow 24hrs to dry

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)


  • £5.00 (Ireland, France & Germany) by Royal Mail Max Sort (no tracking)
  • £10.00 by Royal Mail Tracked and/or Signed (depending upon location)

Rest of the World

  • £9.00 (Australia & New Zealand) by Royal Mail Tracked and/or Signed (depending upon location)
  • £13.00 (Canada & USA) by Royal Mail Tracked and Signed
  • £15.00 by Royal Mail Tracked and/or Signed (depending upon location)

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
Good cheap alternative to prescription glasses
Feefo Reviews
did not stick. even took to opticians and they could not make them stick
Our ResponseProduct :Sorry to hear they have not worhed for you. I assume you have followed the instuction to apply wet and with water/under water and leave to dry.

Feefo Reviews
Not fit for purpose I’m afraid although the idea is good
Our ResponseSorry they have not proved useful. Usually once 'fixed' in-place they stay put unless the mask has to be cleared when they can lift off.

Feefo Reviews
Easy to fit and work great
Feefo Reviews
After fitting exactly as the instructions and allowing to dry. I came to wear my mask two days later. Sprayed the glass with anti fog, rinsed in water and luckily I spotted the lenses floating about in the mask.
How do you keep the lenses from coming off?
Our ResponseProduct :Sorry to hear about the issues. As you may surmise from the fitting instructions they are fitted with water and need to dry, so wetting will make them move again. We suggest treating the mask with anti-fog first (the gel is better for masks and the spray for goggles) then after this has dried fit the bifocals. This then tends to work, but while the Hydrotac are a lot cheaper, one of the downsides is that they can lift off, if for example you had to fill and clear your mask underwater.

Feefo Reviews
As above
Feefo Reviews
very pleased
Feefo Reviews
Very as won't stick properly.luv to get my money a result of that I lost my one lens.what a wastage of money.should have listened to my wife.
Our ResponseSorry to hear you had an issue and we will be in touch directly to help resolve this for you.

The Hydrotac and 'stick' on my electrostatic force so had peel off in certain condition especially if the mask has to be cleared.

Feefo Reviews
Excellent product and excellent service AAA+ trader cheers!!
Feefo Reviews
I follow all the instructions, dive one time and when rinse the masc the prescription lensis are disapear, so allmost £20 for amost nothing!!!
Our ResponseSorry to hear you had an issue. They are only held on by static and can lift off if submerged and knocked.

Feefo Reviews
Very clear concise nstructions, I a have referred friends to this site and the product
Feefo Reviews
I love the product. It's easy to use and provides great sight(ability).
Feefo Reviews
The bifocal lense could have been a little larger, given the size of the goggles lense.
Feefo Reviews
Worked as expceted.
Feefo Reviews
Really quick turnaround - arrived within 2 days
Feefo Reviews
Really good product. Only negative at all was that i lost a lense when mask flooded - the lense just slid off and i didnt notice in time. I think it was more operator error than product failure - I will be much more attentive with the other lens :)
Feefo Reviews
Worked well in diving mask. Did fall off after dives completed, but overall happy with product.
Feefo Reviews
Great value, easy to use.
Feefo Reviews
Surprised at how effective these lenses are. Affixed a pair of 1.5 to my old cheapo goggles and was amazed at the clarity. Even more amazing to me was that, as the original goggle lens surface fogged-up, the stick-on lenses remained clear.
Feefo Reviews
These things work really well!,
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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