We know that buying prescription glasses and contact lenses can be confusing. Many of us are only just coming to terms with buying glasses online! Well to make matters easier, we’ve compiled a list of the questions we’re frequently asked about how to buy prescription glasses anc contact lenses online.

You can always look at our “Face Shapes” found at the end of the site page under “General”.
If that doesn’t help you, why no visit our showroom? Located in Enfield, North London, come down and bring a friend, get a second opinion! Try on our unique and large range of frames! Make sure you are happy with the fit, shape and colour of your new glasses. We can even post them back to you should you wish or even come back and collect them!
For full information please see our “Why choose just4specs?” found at the end of site page under “About just4specs”.

Pupil Meter for iPhone & iPads is a great application for measuring your Pupil Distance. (P.D) You’ve left your optician with your prescription in hand and you want to order your glasses from just4specs. But don’t know how to take your P.D. It’s simple you can either follow our easy steps below!! Or download this “Pupil Meter” application for just £0.59p and let it do all the hard work for you!It’s very easy to use and just takes a few easy steps……Pupil Meter for iPhone – The Pupil Meter is quick and trustworthy; you can now take your own P.D measurement using this application with confidence. It also allows you to send us your measurement via e mail to info@just4spec.co.uk It is self explanatory in the help setting that greats you on the first page. It then explains the simple process method; it really is as easy as 1, 2, 3!!Pupil Meter for iPad – is far more advanced then the iPhone app. Not only is it possible for you to take your Pupillary Distance (P.D) in both Binocular (double) and Monocular (single) measurements. But it also allows you to take your Seg heights needed for Bifocal’s or Varifocal’s.

As you can see from these photos above! Find a friend or family member to take a clear shot of you holding a credit/bank card under your nose with the black strip facing the camera. You will need to stand approximately two feet away. (Arms length)


  • Make sure that the adjustable green box fits exactly around the card strip.
  • To view the picture clearly, use the zoom buttons provided
  • Save your photo
  • E Mail your measurements and order number and let us add them for you at info@just4spec.co.uk
  • Visit www.sunmoresystem.com for more information or watch an instruction video.

Am I entitled to a free eye examination under the NHS?

You are entitled to an eye examination paid for by the NHS if;

  • you are under 16 years of age
  • you are under 19 years of age and in full time education
  • you or your partner are getting income support
  • you or your partner are getting family credit
  • you are over 60 years of age
  • you suffer from glaucoma
  • you are over 40 years of age and have a direct family history of glaucoma
  • you have diabetes
  • you are registered as blind or partially sighted
  • you require complex spectacle lenses

At Brown & White we suggest an extended examination including further testing which is partially covered by the NHS. See our eye examinations page for more details.
I am on a low income/am a student but do not qualify for NHS help in the above groups. Can I get help?
You can apply for help towards the cost of eyecare. Please ask for a form.
Do I need to see my GP before I can have an eye examination?
No. All you need to do is make an appointment.

What has my general health got to do with my eyes?
“Everything”. Many health problems can cause visual problems. For example:

  • rheumatoid arthritis – dry eyes
  • diabetes – fluctuating vision
  • migraine – visual disturbances
  • head injuries – double/blurred vision
  • sinusitis – pain around the eyes
  • menopause – tear problems leading to dry eye/blurry vision
  • high blood pressure – leaky blood vessels

What is the difference between 20/20 vision and 6/6 vision?
There is no difference. Both of these indicate excellent distance vision. 20/20 is the imperial version measured in feet, and 6/6 is the metric equivalent measured in metres.

Unfortunately, due to new NHS guidelines all optical vouchers cannot be dealt with online.
This also goes for your works Eyecare voucher silver (Accor vouchers).

A. All you need to order with us is your prescription, which must have been issued within the last two years. Your optician should provide you with an up to date copy of your prescription.

A. We can offer such low prices because we do not run expensive high street shops. We keep our running costs to a minimum by using our own laboratory and buy in bulk.

A. Definitely not! We refuse to buy low cost, poor quality budget frames. We only buy good quality frames all within British and European standards.

A. Yes but only on single vision within a limited power range. We only use best quality from branded suppliers. All other lenses are made individually to your prescription by our own laboratory.

A. All our spectacles have a 1 year manufacturing guarantee against defective materials or faulty workmanship. (Please see Unique Selling Points)

A. Yes. We have a variety of colours, and depths of tints, and also lenses which change by the sun’s UV rays known as “photochromic” lenses. These lenses are clear in normal lighting conditions, but darken under UV light i.e. in sunlight, and includes 100% UV filter.
Anti reflection scratch resistant protective hard coatings are also available on these lenses.

A. Yes. As our laboratory is approaved by all the top lens suppliers, we are able to order or make any type of lens on the market.

A. No. The contact lens prescription is purley for contact lenses and very different to the spectacle prescription. Please ask your optician for your spectacle prescription, if it’s glasses you want to order.

A. Yes! Just specify in the prescription form that you require plano lenses.

A. No. We do not sell prescription glasses to anyone under 16 years old.

Pupil Distance (PD)How to take your PD (this stands for Pupil Distance). This is to help us know where to place the centres of your prescription lens. This is very easy to do, just ask a friend or family member to be “your helper” and just follow these simple steps.

1. Make sure that “your helper” is standing roughly at the same height as you. Ask them to place a ruler across the bridge of your nose placing the start off the millimetre measurements in the centre of your right pupil. (as shown in example)
2. Start measuring from the right eye (as if “your helper” is looking at you) “your helper” must close their left eye! This is important as it will avoid any parallax error.
3. Then “your helper” closes their right eye opening their left eye as they are taking the measurement to the centre of your left pupil (see diagram).
Remember you can always repeat the process a few times just to be sure!!
No one around to help you at the moment??!!…………..No problem!!
We have a simple way that will allow you to take your measurement yourself!

All you need is a ruler and a mirror!!

1. Firstly stand about 20cm away from the mirror (8 inches). Place the ruler HORIZONTALLY against the mirror and close left eye. The closing off the eyes is important as it will avoid any parallax error.
2. Place the start of the millimetre measurements on the ruler in the centre of your right pupil. Open your left eye and close your right eye. Remember to keep the ruler and your hand STILL!!
3. Peering over the top off the ruler with your left eye read the millimetre measurement in the centre of your left eye.

If you find this to hard to do or don’t understand you can always E-Mail one of our friendly members of staff that will be able to help you. Or ask your optician to take your PD! Failing all that we have a very accurate way off averaging out your PD.
If in doubt feel free to send us an old pair off your glasses and we can measure the PD for you!! And your glasses will be returned to you with your New glasses!!
Failing that, check out the Pupil Meter Application for iPhones and iPads
(You can find this in General at the end of each page!)

A. Your order will be given immediate attention by our staff. Firstly it will be checked for it’s accruracy, by our dispenser. Then go on to the laboratory for production. Our delivery terms are clearly set out in our Terms & Conditions.
In fact most orders are completed and despatched within just two to three working days. We aim for you to receive most orders within 7/10 working days.1 Single Vision Dispatched within 2/3 working days.
2 Bifocals Dispatched within 3/4 working days (allow extra 5 days for high index and M.A.R. coating)
3 Varifocals Dispatched within 3/4 working days (allow extra 5 days for high index and M.A.R. coating)
Special Prescriptions price and delivery on application.

A. The maximum power which we will cater for is:-8.00/+6.00 Sphere combined powers with 3.00 degrees of Cylinder power. We would have personal communication with you if there is a prescription higher than listed.

A. Immediately send an email alerting us, because we process orders very quickly. Always double-check your prescription and other information prior to submitting your order.

A. If you need a minor adjustment, go to your nearest optical retailer. Most opticians will do this for a small fee, or donation in their charity box.

A. There is a £3.99 postage and packaging charge per pair of frames ordered. All frames are sent by Royal mail 1st class. Any orders over £70.00 are sent Special Delivery at no extra charge.

A. We accept all major credit/debit cards, personal cheques, postal orders, Accor vouchers and Eyecare vouchers.

A. Our payment systems uses RBS Worldpay secure on-line credit card payment service. It allows us to safely process your credit card payment with the bank, and complete the financial transactions securely behind protected firewalls.No personal or financial details are left unencrypted on a remote server, and such details are never sent by internet email.