Visual quality, cosmetic appearance and wearing comfort, i.e. weight, must all be taken into account in the design of single vision lenses. Nowadays, higher refractive indices for both plastic and glass lenses together with advanced aspheric/atoroidal surface designs make it possible to produce flat, light lenses which provide even patients requiring high prescriptions with outstanding visual and wearing comfort.
At Zacks London Eye Clinic we supply incredibly thin and flat single vision lenses that no longer ‘bulge’ from frames so that the choice of frames is not restricted by the strength of your prescription. We routinely scan patients’ frames to provide lens thickness calculations from different suppliers and our lens menu includes premium and budget designs to suit all pockets.
Essilor Single Vision Lenses
Essilor has one of the most extensive catalogues with a wide range of stock and specially surfaced single vision lenses in several materials to fit any budget and most spectacle prescriptions. Essilor lenses are available uncoated and with a variety of lens coatings including transitions.
At Zacks Eye Clinic we have a special Visi-Office machine to order lenses with ‘Eye code’. Eyecode is a unique breakthrough in lens personalisation and is at the forefront of innovation. Currently, all lenses that are manufactured assume every person has the same Eye Rotation Centre (ERC), when in fact it can vary by 30%. The dynamic 3D measurements, which can only be measured by Essilor’s Visioffice system, is based on pinpointing the exact Eye Rotation Centre that is unique to every person, delivering a truly tailored eye diagnosis, that is quick, easy to determine and highly accurate.
The ERC measurement is independent from head posture (respecting its natural behaviour) and is unaffected by convergence / phoria problems. Lens centering is more accurate, as for the first time both the Pupil distance (Pd) and the fitting height (Fh) are related to the ERC position. Patients will benefit from:
- Lenses that are five times more precise, giving a total lens-to-eye synergy,
- Instant vision without effort
- Dynamic and highly contrasted vision
- Eye Code – Information Video
Nikon Single Vision Lenses
Nikon’s Bi-Aspheric ‘Seemax’ and ‘SeeStyle’ range of single vision lenses are custom made to reduce aberrations and distortions that increase with high prescriptions. They provide excellent performance across the entire surface of the lens. Nikon SeeStyle lenses can be made in extremely high curvatures which are excellent for wrap around sunglasses. Recently the range has increased to offer the ultra high index materials with transitions.
- Up to 50% thinner and 45% lighter than conventional plastic lenses
- Provide natural and comfortable vision with accurate image perception. Clearer than conventional plastic lenses due to minimal surface reflections.
- Reduced magnification of the wearer’s eyes
- Include top quality anti-reflection coatings on both sides of the lens providing excellent vision.
- Available for most prescriptions and ideal for most frame fashions
Other Lens Manufacturers
At Zacks London Eye Clinic , London W1, we also use several other lens manufacturers such as: Zeiss, Hoya, Tokai, Norville, Shamir and Seiko so that we can find the perfect lens for your requirements. Our highly qualified and experienced dispensing opticians can provide detailed unbiased advice on the best single vision spectacle lenses to suit your prescription without obligation or pressure.