4 Types of Lenses and Their Functions

Currently, the presence of glasses is very useful for people who have refractive abnormalities. In general, glasses have two different components, namely the frame and the lens. Frame of glasses can be adjusted by following the latest model trends that you like.

Meanwhile, the lens must follow the recommended requirements for the condition of your eye disorders. the lens will help your Vision to be better.

Many young people have eye vision problems due to excessive use of technology, such as playing gadgets for too long. As a result, the eyes experience nearsightedness, easily tired eyes, and many more. For that, you can use glasses to avoid eyes from disease. If you are looking for eyeglass lenses, Optopia is an Optometrist Sutherland service that can help you choose the right lens.

Knowing the type of eyeglass lenses and their functions to use is also important. This will affect your comfort when using glasses. The following is a list of explanations:

1. Single Vision Lens

 Single-lens only have one focal point. A single lens can be used for myopia (negative), hypermetropic (positive), and astigmatism (cylindrical) glasses. Single Vision serves to improve the Vision of just one sight.

2. Bifocal Lens

Bifocal lenses have two focal points. It is helpful for far and near Vision. This means that the user can see close up and long-distance more clearly at the same time, in contrast to a single lens that is only one sight. One lower focal point is usually intended to clarify reading activities or for nearsightedness, while the upper part is for viewing objects at a distance.

3. Progressive Lens

This lens also has two focus points; the difference is that the progressive lens does not have a distance or a dividing line at the focus point for distance viewing and the focus point for a close view. In addition, this lens is equipped with a focal point that is capable of seeing moderate distances, so it is more comfortable.

4. Lens Transitions

Transition lenses are unique. It can change colors that are formed due to the nature of polarized light. In this room, the glasses will be clear, like reading glasses. Still, if it is outside the room, it will be dark like sunglasses, which provide eye protection from ultraviolet (UV) rays.