Frequently Asked Questions Contact Lenses

Wearing the lenses past the manufacturer’s recommended wearing time increases the risk of infection, thus negating the benefits of disposable contact lenses. The very nature of disposable contact lenses means that you will continually have clean contact lenses upon replacement.

Certain contact lenses have been approved for 30 day extended wear. Wearing these lenses sleeping slightly increases the risk of microbial or infectious corneal ulcer. Wearers of these lenses must have their eyes checked at least every six months. Normal contact lenses should not be worn on an extended wear basis.

Blurred vision, ocular discomfort and lens discoloration and deposits are common signs that a lens is approaching the end of its life. This can lead lens intolerance. Frequent replacement lenses should prevent these problems before they occur.

Contact lenses are usually used starting from age 11-12 years, because children of that age are already able to handle and take care of the lenses independently. There are some exceptions when lenses are used by younger children but it is not common.

Yes, however, it would be prudent to wear swimming goggles and disinfect the lenses after swimming. Because of the higher risk of microbial keratitis, contact lenses should not be worn in a spa.

Wearing contact lenses for sports is a more flexible and stable form of eye correction than spectacles. In fact contact lenses give more peripheral vision than spectacles. If your sport involves vigorous exercise, a soft contact lens is an appropriate choice. If contact lenses are only worn occasionally, then use of a one-day lens, such as Acuvue 1 Day , Proclear 1 Day or Focus Dailies Aqua Comfort Plus lens, is most convenient.

Once you have adapted to them, correctly fitted contact lenses should stay in position. However, they can come out under certain conditions. Rubbing your eye carelessly may result in a lost lens or you may push the lens under your eyelid.

Pregnancy causes a change in hormone levels, which may impact upon your eyesight. Hormones can affect tear function, resulting in reduced or blurry vision. It is common to have a transient intolerance to contact lenses, particularly in the third trimester. The problem should resolve itself after childbirth. If the deterioration in vision persists, even after inserting new lenses, you should consult your eye care practitioner at once.

Yes. However, you may have a reduced wearing time than someone with normal tear secretion. You can increase the comfort of your lenses by inserting eye lubrication drops. As always, it is best to consult your eye care practitioner for the best advice regarding whether you should wear contact lenses and what type of lenses may be suitable.

No. It is impossible for a lens to disappear behind the eye, however a contact lens may displace under the eyelid. If this occurs, try looking in the direction of the lens to move it back to the correct position. If you wear hard gas permeable lenses, you may need to manipulate a displaced lens through the eyelid.

A common problem – the Opticians try to tie you into ‘Own Brand’ lenses to make it difficult for you to re – order your replacement lenses from elsewhere. You can’t then benefit from the great deals that we can give you on replacement contact lenses and are forced to pay expensive prices! The lenses that the high street chains have supplied to you are EXACTLY THE SAME as the lenses supplied by us – but have simply been repackaged. You can contact Customer Support with the details of your lenses and high street chain, and we will tell you the exact replacement lenses that we can supply to you at discount prices.

The latest contact lenses are so slippery that the meaning of base curve (BC) has changed compared to before. The new lenses have such a smooth surface that with the common base curve of 8.6, they would simply fall out of the eye! Nowadays, base curve gives information about the lens material, not the lens size. The different base curves of new lenses fit equally well on the same eye, because they work together with other characteristics of the lens material. The world’s smoothest lenses have a base curve, but their fit is just as good as the “old”, 8.6-curve lenses. But the bonus is the super smooth surface, which means a much more comfortable feeling.

Oxygen transmission capability (Dk/t) is an important indicator to pay attention to when choosing lenses. A contact lens forms a barrier that prevents oxygen from reaching the cornea of ​​the eye. It is important to know that the higher the Dk/t value, the better. The higher the Dk/t value, the more oxygen reaches the cornea of ​​the eye.

The higher the power of the lens in diopters, the thicker the lens. In this case, it is recommended to choose a larger refractive index—commonly referred to as the thinning level. If you are in doubt about which refractive index to choose, feel free to ask our customer service for help.
The general recommendation is as follows:
The refractive index HI1.5 should be chosen when the prescription is between 0.00 D and ±3.00 D.
The refractive index HI1.6 should be chosen when the lens strength starts at ±3.00 D.
The refractive index HI1.67 should be chosen up to a lens strength of ±6.00 D.
The refractive index HI1.74 should be chosen when the prescription is over ±6.00 D.
We recommend shatter- and impact-resistant plastic lenses with a refractive index of HI1.59 for sports glasses.

Most sunglasses can’t be fitted with optical lenses because they are not designed to be replaced with optical lenses. As a rule, optical lenses cannot be fitted to very large, specially shaped or so-called mask sunglasses. If you want to order optical lenses for your sunglasses, we recommend that you go to an optical store where an optician or optician works, who will make the final decision as to whether optical lenses can be fitted to the selected sunglasses.

If you don’t need glasses with optical lenses, then buying is easy. For sunglasses, you just need to select the appropriate glasses and proceed to the shopping cart.
To order so-called fashion glasses, you need to choose a suitable frame for you and then select “Add to cart with lenses.” To make it easier to order glasses with 0-power, we have added a subsection “Non-prescription” to the lens type selection. Through this, you can choose suitable plastic lenses: blue light protection or night driving lenses.

It should be borne in mind that if you buy regular eyeglass frames for everyday wear, you should also choose suitable lenses. Most brands of regular frames have the brand logo on the so-called demo lens.

In the LensExpress online store, you can buy eyeglass frames without optical lenses (frames only) and with single-vision lenses for distance vision (minus glasses) or reading (plus glasses) according to your prescription. We recommend that you contact an optical store to order progressive lenses, as ordering such glasses requires more precise measurements for the correct installation of the lenses.

LensExpress online store cooperates with Modena payment gateway and offers eyeglass buyers the “Click and Try” service. The “Click and Try” service makes buying glasses quick and convenient, because you can add up to 3 eyeglass frames or sunglasses to your cart and order them to try on at home without paying anything. You can start using the glasses that fit you right away. You can return the glasses that don’t fit you. You only pay for the glasses you keep.

The LensExpress online store offers optical swimming goggles from two manufacturers.
Speedo Hydropure Optical is a wide and soft-framed model that is suitable for all swimming enthusiasts. The goggles have interchangeable nose pads (small, medium and large). The goggles are available with optical powers from sph -1.5 to -8.0. Both lenses have the same optical power.
CentroStyle Swimmi 2 swimming goggles fit well in front, as they have a silicone front part that adapts to the shape and size of the face and a soft and self-adjusting nose bridge. These swimming goggles can be ordered with different powers for each eye. The lens power range from -1.0 to -8.0.