How long is a contact lens prescription good for?

How long does a contact lens prescription last?

Contact lens prescriptions are typically valid for up to two years, which means you can purchase the contact lenses specified in your prescription for that time period. However, this is dependent on the type of lens, the wearing schedule, the replacement schedule, and how frequently you wear your lenses.

You can buy contact lenses without a prescription at Top Specs because we don’t require proof of your prescription. We assume you have a valid copy and are aware of your visual requirements.

After your prescription has ended, users should have an eye exam because then your optician could even determine if ones vision or eye health has changed and provide you with an updated prescription. After your eye exam, you have the legal right to request a copy of your prescription in the United Kingdom.

How frequently should you have your contact lenses checked?

Contact lens prescriptions could be legitimate for up to two years; however, your optician would then usually advise you on when you should return for a check-up. It is recommended that you do have a yearly routine eye care check to ensure that you are not harming your eyes by wearing incorrect lenses.

If you notice any problems with your lenses between check-ups, you should see your optician right away.

Why are contact lens prescriptions brand-specific?

Because everyone’s eyes are different, contact lenses come in a variety of sizes to accommodate a wide range of eyes. During your contact lens fitting, an optometrist or ophthalmologist will measure your eye and prescribe a lens type and brand that meets your requirements and wearing needs. This is why contact lens prescriptions are brand-specific.

Can an optometrist fill a prescription that has expired?

There is a reason why contact lens prescriptions use an expiration. 

Nonetheless, laws in other countries differ. Top Specs sells contact lenses online without requiring a prescription. However, we always recommend that you order your lenses with a valid prescription. This ensures that you receive the appropriate level of correction and lenses for your specific needs.

Why is a contact lens prescription different from a glasses prescription?

Contact lens prescriptions differ from glasses prescriptions for a variety of reasons, one of which is how they are positioned. Contact lenses actually sit mostly on surface of the eye, whereas glasses sit few other millimetres aside, requiring the power value for each prescription to be calculated differently.

When you visit your optician for a lens fitting, your optician will need to take additional measurements. These measurements, which include a base curve, diameter, as well as the title and manufacturer of ones contact lenses, would then establish a complete fit. These measurements will not be found in a glasses prescription.

Aside from that, there are various types of lenses that an optician would then prescribe based on the specific needs. Daily disposables, quarterly disposables, lengthened, toric, multifocal, as well as coloured lenses are among them.

It’s also worth noting that while a glasses prescription may include a cylinder and axis value, you won’t find one on your contact lens prescription but if you have strabismus.

Presbyopia patients will also require addition as well as powerful measurements.

Is it necessary for me to purchase contact lenses from my optician?

As previously stated, you are not required to purchase contact lenses from your optician; however, those who wear contacts should have regular eye exams to evaluate their prescriptions. This should be part of your regular eye care routine to avoid having an eye problem.

How long can I wear a single set of contact lenses?

The amount of time you can wear one pair of contact lenses varies depending on ones wearing style and the advice provided by your optician. Individual factors such as your age, occupation, and overall health will usually be taken into account by your optician.

If you have been prescribed extended wear eye glasses, users can wear them day and night for a set period of time (usually one week to a month) without removing them.

Is it harmful to wear weaker contact lenses than you require?

Wearing contact lenses that are weaker than your prescription will not impair your vision, but it will cause eye strain and headaches.

It is commonly assumed that you must purchase contact lenses from of the optician that evaluated your eyes, but this is not the case. Contact lenses can be purchased from any optician or licenced online retailer.

When you shop at Top Specs, you can buy one’s contact lenses better value for money online and save up to 50% off high street optician prices.

How do I decipher my contact lens prescription?

There are more than enough aspects and figures on even a contact lens prescription to trigger some confusion, including a base curve, circumference and abilities, and also cylinder and axis for toric contact lenses. But don’t worry, we’ve created a helpful guide on how to read your contact lens prescription and determine which lenses you’ll need to purchase.

Alternatively, you can call us at 01296 484 222 and one of our customer service representatives will gladly assist you. Contact us today!



Talking about it is one thing.

Doing so is another thing entirely.

Sure, there’s plenty of brands in the UK that can tell you about making glasses frames. But, there are so few who really do it themselves.

A sobering prospect given that UK used it to manufacture 5 million flexible team a year.

For the only sunglasses frame manufacturer in Scotland, they felt the need to share with you how glasses frames are made.

Oh yeah, our glasses are handmade and they’re handmade right here in the UK.

From sheet to store, here’s a list of the processes we use to create our core stock and secret collections of spectacles and sunglasses.

Yes, we make limited editions which you can see by entering our Members Club in the form below.



So, how are glasses made?

At Banton Frameworks, we believe the best place to start is with the best materials. This is why every quarter, they get a shipment of a best chloride by Europe’s biggest supplier.

Since the huge acetate sheets barely fit through our workshop doors, we cut them outside with our table saw during the summer months.

We still use our table saw in the winter, so there’s a lot of sweeping afterwards…


Our frame designs are timeless and silent, but the process of creating them is noisy.

The deafening buzz of our in-house CNC machine can also be heard outside our workshop.

That frame faces were precision cut of strips of thick acetate pieces, so ear defenders are certainly on.


Confidence and dedication are necessary qualities to cut the lens grooves in our frames.

This entails cutting a narrow channel in the inner periphery of the lens hole with a custom-built table and cutting tool. The frame cannot be fitted with lenses unless this groove is present.


Continuity. Continuity. Continuity.

This particular technique necessitates the use of a handheld drill to carve four small recesses in the acetate frame front.

Such four openings are for small solid steel rivets that we use. The frame is ruined if the recess is too deep. If the bolts are also too shallow, they will protrude or catch on the cardigan.


Consider bridges. Consider spitfire aircraft.

Rivets keep even the most powerful systems together. Our glasses are no different.

Our five tenon hinge were permanently fastened to the frames and temples using a pneumatic riveting system from 1976.

This method is accurate, time-tested, and dependable. These hinges, like our mission, are fixed and strong.


Curves are often appealing, particularly when placed correctly.

Before we curve our frame fronts with our self-built pneumatic press, we heat them in an oven. When your frame reaches the proper temperature, it is easily removed from the oven and put under our press. A pneumatic pump is mounted and descends to curve your frame with the aid of a precision machined mould below.

These curves make your frame more comfortable to wear and make it easier to fit lenses. Your frame is then submerged in cold water to maintain its form.


Smooth pebbles are popular on your local beach.

Natural abrasion between the sand and small stones causes the surface to become smoother over time. The same effect is obtained by tumbling our frames. However, there is no sand.

This technique is used to remove marks and scratches left over from the previous stage of machine cutting our frames. We placed our frames inside wide barrels filled with what is known as ‘tumbling media,’ which is fascinating to watch.

Simply put, the frames and media are tossed around inside the barrel by rotation, creating friction and polishing.


Polishing wax gets into the lens grooves and crevices during the tumbling process.

It’s a required operation, but getting your frame clean again can take some time. When you listen to the new audio version and podcast, the frame is washed inside our blasting device and lovingly restored.


Our uni-piece temples are made of stainless steel and have a seamless, flowing shape. A ball-end, tapered towards each edge, serves as a counterweight to the frame front.

The steel is PVD coated in a strong colour finish and is made from a single component.

Since coating, their temples were professionally pads printed with our company details on the inside edge.

This technique produces very delicate, precise lettering on the inside of our uni-piece temples.


Oh, this is the good stuff. Your frame is now full and ready for assembly.

Our riveted hinges are held together by small 1mm dowel screws that connect the frame front to the temples. We employ five tenon hinges, which produce a high-quality, stable hinge action.

When you unpack your new frame, you will savour the tactile feeling of opening and closing the hinges.


Lenses for sunglasses or spectacles may now be mounted.

The acetate is gently warmed with an optical frame heater to make it easier to fit the sun lenses into the lens grooves.

Depending on your prescription, lenses can be single vision, reading, bifocal, or varifocal. Tap here to see our lens bundles.


Our opulent packaging carton is made of die-cut, high-gsm paper from a specialised mill in the North East of Scotland.

Text and logo are foil blocked in a matt silver finish both inside and out. To seal the contents inside, a custom black silicone band envelops the container’s exterior.

This band eliminates the need for adhesives while also allowing for a tactile unboxing experience.

Want to replace your old rimless glasses with new designer frames? Contact us today!