Getting the right glasses can be an uphill task, especially when it is an emergency. We live in a jet-age now, and technology has dramatically advanced including in the area of lenses; almost all the lenses today are made from high-tech plastics. They are lighter and do not readily break unlike in the past when you literally have a glass as thick as your regular bottle as your eyeglasses. Today’s lenses are mostly shielded to protect your eyes from ultraviolet rays.
Types of lenses
To pick the right glasses, you need to understand the different lenses you can get; the listed lenses below are thinner, lighter and scratch-resistant than older plastic lenses.
These lenses are suitable for people who play sports or work where your glasses can easily be damaged and if you have kids who are tough on their glasses; they are impact-resistant lenses and also have built-in ultraviolet protection.
2. High-index plastic
If you need a reliable prescription, the high-index plastic lens is suitable for you. It can refract (bend) light more effectively. Furthermore, high-index lenses for nearsightedness are created to have thinner edges than lenses with the same prescription power that are created from the traditional plastic material. Therefore, if you prefer thinner and lighter lenses to the conventional thick glasses, the high-index plastic is your choice.
3. Polarized sunglasses
If you are looking for anti-glare lenses, the polarized sunglasses can do just that; it reduces the reflection from a surface like water. It is perfect for driving and sports. Nonetheless, it is difficult to see liquid crystal display on your vehicle’s dashboard.
Just like polycarbonate lenses, trivex are thin, lightweight also impact-resistant. They are made from a newer plastic that is similar to polycarbonate lenses. Some users claim the trivex lenses help them to correct their vision.
Photochromic lenses protect your eyes from ultraviolet rays; it changes from clear to tintas soon as the sun is out. However, if you are inside your car and the windshield can block UV rays, there will be no changes. Photochromic comes in glasses as well as plastic.
These lenses have various degrees of curvature; they are flatter and thinner, so you can use a more substantial portion of the surface.
How to pick the right shape of your lens
Getting the right shape of your lens is not rocket science; if you are farsighted, you will need a convex lens, and if you are nearsighted, a concave lens is a right lens for you. Astigmatism requires a cylindrical lens; it helps you focus light onto your retina correctly.
Furthermore, it is necessary to visit an eye care center for an eye exam and to get professional advice. It saves time and guarantees an accurate prescription.
However, it is essential for every adult to have his or her eyes examined at least every two years and annually if you have health conditions such as macular degeneration, diabetes, etc. according to the Saskatchewan Association of Optometrist, the annual eye examinations for patients diagnosed with diabetes, along with all Saskatchewan children under the age of 18 are covered by Saskatchewan Health.