crown vision center

selecting the right lenses

1. Understanding your prescription.

FARSIGHTED VS. NEARSIGHTED

If you are farsighted, you have trouble seeing things close up. Your prescription will have a "+" sign followed by a number. Likewise, if you are nearsighted, you have trouble seeing things at a distance and your prescription will have a " - " followed by a number. The greater the number, the greater the correction needed.

SINGLE VISION & MULTIFOCAL LENSES

Single vision lenses correct a single vision problem, either nearsightedness or farsightedness. Multi-focal lenses, bifocals, trifocals and progressives, correct both distance, near vision, and the middle range of vision. Bifocals and trifocals have a noticeable line where the prescription breaks, which many people do not like. Progressives have no lines where the prescription breaks, and look like single vision lenses.

2. Lens Options

ANTI-REFLECTIVE

Anti-reflective lenses allow you to see better by drastically reducing glare on the lenses caused by the sun, headlights, televisions, computers, etc.

GLASS LENSES

Glass is the original material used for lenses, before plastic and polycarbonate came into use. Glass is much heavier, and potentially dangerous as it is likely to shatter upon impact.

HIGH INDEX LENSES

High index lenses are the thinnest lenses available, and are therefore ideal for those with very strong prescriptions.

PLASTIC LENSES

Plastic lenses are more durable and comfortable than traditional glass lenses, however they scratch easily and should be treated for scratch resistance. Plastic lenses are easily tinted and can be treated for UV protection as well.

TINTED LENSES

Tints are available in a wide variety of colors. These lenses are helpful to those whose eyes are light sensitive.

ULTRALITE LENSES

Crown Vision's Ultralite lenses are the lightest and most durable, shatterproof lenses on the market. These lenses are made from a plastic known as polycarbonate. Ideal for anyone, but especially children, Ultralite lenses are much safer as they are impact resistant and will not shatter into dangerous pieces. They are also significantly thinner than traditional plastic lenses, and are made with UV protection.

UV PROTECTION

UV light is harmful to your eyes as well as your skin, and is believed to be a causal factor of cataracts. UV light is found in fluorescent lighting and computers as well as sunlight. Polycarbonate lenses are made with UV protection, and a UV coating can be added to plastic lenses.

SCRATCH RESISTANCE

Scratch resistant protection can be added to your lenses and will lengthen the life of your glasses. Scratches and abrasions can obstruct vision.

To schedule an eye exam or a FREE LASIK consultation, call 1-800-EYECARE (393-2273) for an exam at any of our Crown Vision Center locations.