The increasing usage of television and computers

Single vision lenses have only one power throughout the lenses, resulting in only one viewing area. If you are wearing a pair of prescription glasses before the age of forty, then single vision glasses is most likely the one to choose. Single vision glasses are available in different materials like glasses, acetate, hi index and polycarbonate, and you can use them for your day-to-day activities like reading or distance viewing or looking at the computer at an intermediate distance.

There are various kinds of vision related ailments which can be solved by the single vision glasses. The most common problem is the near-sightedness or myopia where an individual finds it difficult to see objects located at a distance. Single vision lenses with a convex shape can help these individuals to rectify the situation. On the other hand concave shaped lenses in the single vision glasses increases the visibility for nearer objects and is wore by those who have hyperopia. Astigmatism is a peculiar kind of vision disorder with the patients having two different visions at right angles to each other. Prescription glasses with cylindrical single vision lenses can help to cure this disorder. Presbyopia is a common visual problem which affects people above the age of forty years old. Reading glasses, which are a kind of single vision glasses, is a popular solution to presbyopic patients.

Even the single vision lenses have different kinds on the basis of size of the radius on the front and back of the lenses. Generally there are three different kinds of single vision lenses hi-lux spheric, nulux aspheric and nulux EP bi-aspheric.

As more and more prescription glasses are sold at the online stores, they have become the preferred place to purchase single vision glasses. These glasses online offer you the widest range in terms of colours and the prices charged are way lower than prices at the physical retail stores.