Eyecare

Frames

As an independent optician we are able to stock a wide range of frames with a variety of colours and sizes. Indeed we have over 500 frames to choose from and our stock is continually changing.

Whether you’re looking for budget or designer our fully qualified and knowledgeable staff will be on hand to talk you through your options. If we don’t have what you want we will do our utmost to order it in.
None of our staff are on bonus schemes and so there is no incentive to push the most expensive option and there are no confusing offers which end up costing you more than you thought you were going to pay. We simply help you find the right spectacles, fit them to be as comfortable as possible and adjust them at no further charge for the whole of their life.

Lenses

You might not think so but the lenses are the most important part of your glasses. After having the best eye examination we can give you, it’s vital you get the right lenses for your eyes to achieve the best possible vision.

There are hundreds of lenses to choose from. There are thinner, lighter and safer materials. There are glass, plastic, hi-index, polycarbonate, trivex and photochromic to name just a few. See below for more details.

There also different types of lenses, the well known ones being single focus, bifocal and varifocal.
All lenses can be made in a number of forms enabling sharper vision over a wider portion of the lens. There are spherical, aspheric, double aspheric, digital freeform and double surface digital freeform.

Every lens can be coated to reduce wear and tear, or reflections from the surface, making your spectacles look even better.
Finally, lenses can be unbranded or branded. We have found that Hoya lenses are of the very highest quality and provide the best vision possible.
If you feel there are any unanswered questions regarding frames or lenses just pick up the phone or call in and ask. Either Martyn or Andrew will try to answer your queries and if there is something that you manage to stump us on we will find out for you.

Esprit Plastic

FRAME TYPES

Frames can be made from numerous materials. These vary from simple to very complex alloys which can be plated or coloured to give a pleasing appearance.Some notable materials are:

TitaniumA very strong, exceptionally light material and completely non-allergenic. Excellent for those patients with nickel and other allergies. Some titanium alloys have a memory effect and can be bent and twisted only to find that they regain there shape when released.

Stainless SteelAgain very strong and hypo-allergenic but not as light as titanium.

AcetateOften referred to as plastic. This material can produce some beautiful shapes and incorporate some amazing colours.

LENS TYPES

I could fill the whole web site with information about lenses as there are so many nowadays, but I will restrict it to the most common ones.AsphericThis is a change in how one surface of the lens curves. By using an aspheric surface lenses will be thinner and lighter but also more of the lens will be useful to you. It reduces the aberrations at the periphery of the lens making your vision clearer over a wider area.

Double AsphericAs its name suggests both surfaces are made aspheric and so the benefits are greater still. This is especially true of astigmatic corrections.

FreeformThis technology is mainly used in modern varifocal lens production and reduces the amount of ‘swim and sway’ that some wearers experience. If this is combined with ‘dual surface’ design such as that used by Hoya, then the wearer will notice wider fields of view both for distance and near and less distortion at the edges.

PolariodThis is usually applied as a very thin film sandwiched between two layers of lens material. The Polariod film stops all light which has been reflected off a horizontal surface. Hence all the glare from water or large areas of concrete for example is removed. This is why they are so loved by fishermen, sailors and pilots. They also remove more glare from a bright sky than a simple tint.

PhotochromicThese lenses go dark as the light gets brighter reducing the need for separate sunglasses. They are usually available in a brown or grey colour and we feel the best suppliers are Transitions (for plastic lenses) and Reactolite (for glass lenses).

CR39 ResinThis is the proper name for what most people call plastic lenses.

PolycarbonateThis is an immensely strong and very light material, roughly 12 times stronger and 1/3 lighter than CR39. However it is quite a soft material in lens terms and so is hard coated as standard.

Trivex / TrilogyThis a modern equivalent to the tried and trusted polycarbonate, being very strong and light. The advantages of trilogy are that it is more resilient to drilling and grooving. Consequently you do not get the occasional cracking around holes drilled for rimless frames or chipping of the lens edge in semi rimless designs.

GlassThe original material for making lenses but very rarely used nowadays. In the 1980’s about 90% of lenses were glass, now it’s less than 5%.

Hi IndexIncreasing the refractive index of the lens material makes the resultant lens thinner and aesthetically more pleasing. The classic indices are 1.5, 1.6, 1.67, 1.74, 1.8 and 1.9. However, the last two are only available in glass and although thinner they become considerably heavier.

COATING TYPES

HardThese are coatings to make the surface of the lens much harder and scratch resistant.

Anti-reflectionThese coatings reduce surface reflections from your lenses. This improves the cosmetic appearance of your spectacles and reduces glare from bright light sources such as computer screens and headlights during night driving.

HydrophobicThis coating stops water attaching to the lens causing it to run off. The benefit is that it reduces fogging of the lens.

OleophobicThis is similar to the hydrophobic coating except that it works on oils which are the major cause of smudges on lenses. Consequently lenses are much easier to keep clean.