There are several criteria to evaluate when it comes to determining which lenses are best for the patient. Three factors play a critical role in your eyeglass prescription: lens material, lens design and lens coating. Here’s a breakdown of each area.
Plastic Lenses: Stronger than glass and half the weight. Maximum comfort and durability. Plastic can be tinted to almost any color and density.
High Index Lenses: Revolutionary high-index lens material offers prescriptions in a thinner, lighter lens. No more “coke-bottle” lenses! Provides comfort and UV protection.
Polycarbonate Lenses: The most impact-resistant material. Shatterproof and lightweight. Good for the active child or athlete. Provides UV protection.
Glass Lenses: Durable, scratch-resistant material. Provides superior optics.
Photochromatic Lenses: Lenses that darken with ultraviolet light and lighten in the absence of ultraviolet light. Available in gray or brown and glass or plastic, these are a fine option for patients that are in and out of doors many times during the day.
Single-Vision Lenses: A popular choice for single usage or occupational glasses (computer or reading glasses). Available in all lens material.
Flat-Top Bifocals: Provides vision for both distance and close-up work in one lens. Offers variable bifocal widths to accommodate many close-up jobs. Available in all lens material.
Trifocals: Added lens segments provide clear vision close-up, far away, and in-between. Facilitates all types of work. Available in all lens materials.
Progressive Multifocals: Progressive (no line) lenses offer all the benefits of bifocals and trifocals, plus the cosmetic appearance of single-vision lenses. They provide clear vision from up-close to far away. Available in all lens materials.
Anti-Reflective Treatment: An extremely thin, clear lens treatment that virtually eliminates reflection. By allowing all available light to pass through the lens, this coating reduces eyestrain produced by glare and reflection from headlights and computer monitors, increases contrast and improves clarity. Cosmetically, this lens also enables others to see your eyes more clearly. Anti-Reflective coating is an excellent choice for public speakers, those working with computers, or those patients experiencing difficulty with night time driving also great for patients after Cataract Surgery.
Scratch Resistant Coating: This is a clear lens option that when added to standard plastic lenses will dramatically reduce the chance of scratches to the lens.
Ultraviolet Coating: This virtually clear coating blocks UVA, UVB, and UVC bands of ultraviolet light waves. Effective in reducing the risk of cataract development. Sources include fluorescent lighting as well as natural lights. Especially important in high altitude areas where there’s more light exposure to UV.
Tinted Lenses: Plastic lenses may be tinted any color. This helps to block the bright light from the eyes.