Sunglasses, They Make You Look Great!

Trifocals are a type of reading glass. Unlike bifocals, trifocals will have three segments of vision correctio; near, intermediate, and distance vision. At first it may sound difficult to get used to a lined pair of eyeglasses, but most people find them pretty easy to adapt to. Trifocals will offer more visual convenience than bifocals after you have adjusted to them. Think about climbing. It’s easier to reach step three via step two and not directly from step one. The three areas of correction are designed ot reduce strain and relax your eyes into clear visoin.

In most cases, an eye doctor will prescribe trifocals for people with advanced presbyopia. This is because more advanced presbyoes benefit from a multiple range of corrections. Your eyeglass refraction, also referred to as spectacle Rx, is determined during your eye exam. Optical corrections are measured in diopters.

As suggested by the name, bifocal lenses will correct vision in only two areas, usually near and distance vision. Trifocals will correct your vision at multiple varying points. Because of this, trifocals is the optimal choice in clarity for a majority of advanced presbyopes.

Trifocals are designed for those who already where eyeglasses and now need extra correction for nead and mid range. Trifocals do not become necessary until presbyopia becomes more advanced, usually after 55 years of age. While not overly challenging to adapt to, the intermediate segment of vision is what takes the most getting used to. A spectacle Rx of -4 diopters with a reading add of +3 will produce a reading segment of -1. The mid-range or intermediate correction will be a -2.5.

o Even a lay person can understand why you get distinctly better vision with trifocals rather than bifocals. These lenses will provide all three areas of vision correction.

The lower portion of the lens will contain the near vision so all you have to do is glance down to see clearly at near. Lined lenses come in a variety of shapes, from flat top to crescent, your optician will help you find the right lens style based on your daily activities. The varying segments of the lens are clearly marked with a very thin, yet visible line.

The full add power, which corrects the closest near vision, is on the base of the lens. When fit properly any of these eyeglasses are very easy to adapt to.

The section that corrects intemediate vision is directly above the full near vision correction. It does not cover a great range of distance, intermediate is considered computer distance vision.

One pair of trifocals is often all an advanced presbyope needs to read, work, and enjoy good vision. You may find yourself unsatisfied with the line markings that split the varying optical areas of the lenses. If this sounds like you, you may love progressive eyeglasses. They will work just as well and sometimes better than either trifocals or bifocals. Progressive lenses are the best option for those that do not like the line look within their glasses. They will provide the best clarity and comfort to anybody who is suffering through presbyopia.