FAQs


Are Prescription Glasses Free?

No prescription glasses are not completely free.  But in the UK the price of glasses are subsidised by the state for all children under 16. 

For adults it depends on your employment status and financial means as to whether you will may obtain financial assistance towards the cost of prescription glasses.

Some opticians do provide a limited range of prescription glasses with no extra cost added on top of the assistance given.

So technically you could obtain them for free.  But the costs are paid for by the state.

Can Glasses Cause Headaches?

Glasses can cause headaches if the glasses are not fitted correctly, the centre of the lenses are located incorrectly, the lens form is different, the pantoscopic tilt is incorrect, the lens powers are incorrect and if the Optometrists prescription is incorrect. 

How are prescription glasses made?

Glasses or spectacle frames are supplied by factories all over the world to wholesalers and multiple Optician retailers, who store them ready for customers to try on. 

Glasses are supplied with plane dummy lenses in the frame usually with the brand logo painted onto the lens.  This keeps the lens shape intact during shipping, storage and provides a good aesthetic look when trying them on.

Prescription lenses are supplied by lens manufacturers and stored in spectacle lens workshops either onsite within opticians, or offsite at specialist factories.

The lens is usually in a semi-finished form, meaning the front surface of the lens is polished with a specific curve.  Then the lab polishes ‘surfaces’ the back surface to the specified power.

Then the glasses frame is digitally scanned via the inner bevel that holds the lens in place.  The lens is then cut and edged automatically by machine and fitted by the technician securely into the frame.

how does buying glasses online work?

At JOIUSS we have simplified the process of buying glasses online.  Read this blog post for more detailed information - Read Post

How Do I Measure the Pupil distance?

The PD is a very simple measurement to perform.  Please see our article that will give you all the information to perform this like a professional! - Read More

How Long Will My Prescription Glasses Order Take?

We aim to deliver UK orders within 5-7 business days (exclusive of Weekends and bank holidays).

For international orders outside the UK please allow about 10-20 working days for delivery.

All orders are shipped via FedEx and are included in the price of your order.

Where are prescription glasses made?

Prescription glasses are made all over the world.  Generally, in two stages, spectacle frame manufacture and spectacle lens manufacture.  China has the highest concentration of factories in the world that export to every nation in the world.  Other major countries include the USA, Italy and Japan.

Will Glasses Help Eyestrain?

Yes.  If caused by a continuous blurred image, over accommodation (focusing) or a misalignment of the eyes.

Will My Prescription Glasses Be Thick?

Prescription glass lens thickness is determined by the powers found prescribed by the Optometrist or digital device like the Eye Que.

The final thickness of the lens is governed by the refractive value of the lens material known as refractive index and the curvature required to focus the light to the value of the prescription.

The higher the refractive value of the lens material the flatter the curve needed, therefore reducing the overall thickness of the material.

Here at JOIUSS we have taken the pain away by integrating a module that recommends the best cosmetic lens while balancing the best visual performance for you.