Spectacle lens tv#
You can experience glare whilst driving at night, watching TV and using the computer. 40% thinner than standard plastic lenses.High Index Plastic Lenses (Super Thin and Light) 30% thinner than standard plastic 1.50 index.
The lens material and the strength of your personal prescription will determine the overall weight and thickness of your lenses.Īs a general rule, the higher the refractive index of the lens, the lighter and thinner your lenses will be. Lenses can be made from various materials which are detailed below. We recommend thin and light lenses, which will give you the most attractive looking and more comfortable glasses. The middle part of the lens is for seeing the computer or the dashboard whilst driving, and the bottom of the lens is for close work like reading and knitting. The top of the lens is for distance, like driving and TV.
Varifocal lenses – These lenses have three zones which correct your vision at all distances. There is distinct line on the lens separating the two zones. The distance vision is at the top of the lens, and the reading vision is located in a segment at the bottom of the lens, which is often visible on the front surface. They are set for one viewing distance only, which may be near for reading, intermediate for the computer and distance for driving, or watching TV.īifocal lenses – These lenses provide distance and near vision in one lens. Single vision lenses – These lenses have one single prescription across their entire surface. Options can include photochromic, polarised, anti-reflective, anti-scratch, anti-smudge, anti-fog and also coatings that repel dust and water. These additions can improve the longevity of the lens, provide optimum clarity of vision and also have eye-health benefits. Lens technology: This can be applied to the front or back surface of your lens, to enhance the benefits and features best suited to your lifestyle.The lens material can be either plastic, polycarbonate, high-index plastic or glass. Material: The look and weight of your lenses is dependent on the type of lens material you decide upon.The design of the lens can be either single vision, bifocal, trifocal, varifocal, or occupational office lenses. Lens Design: The lens is made to your prescription, following the examination by your optometrist.Your optometrist can advise you on the best lens to meet your daily needs. The lens can be divided into three main parts: the design, the material and lens technology. Your optometrist will then make recommendations on lenses tailored to your needs. That’s why we spend time to establish your lifestyle and visual requirements.
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