The World Health Organization estimates that there are around 253 people around the world that have some form of vision impairment. Many of them have preventable and treatable eye conditions. One of the most effective treatments to improve your vision is to visit an eye doctor and get a prescription for corrective lenses. Even if you have near-perfect vision, you may also benefit from wearing prescription lenses to protect your eyes from blue light from electronic devices and screens. Continue reading to learn more about corrective lenses and how they can benefit your eye health and everyday life.
A corrective lens is a lens that a person with eyesight issues wears in front of or on their eye. The goal of corrective lenses is to focus light on the retina so the patient can see clearly. Their design allows light rays to bend before they enter the eye at a specific degree.
There are two main types of corrective lenses: convex and concave, plus and minus lenses. There is also a third option known as compound lenses, a combination of convex and concave lenses. The selection will depend on the patient's needs and requires a prescription by a qualified eye doctor, such as an optometrist or ophthalmologist.
In a convex lens' (sometimes known as a converging lens) the surface bulges outward. It brings in parallel rays of light together and focuses them on a single location or a focal point. As a result, they are thicker in the center and thinner toward the edges.
Convex lenses are often common in devices such as telescopes, binoculars, and magnifying glasses. In optometry, they are used to treat farsightedness.
In contrast, a concave lens, or diverging lens, curves inward. As a result of their design, parallel waves of light diverge from each other. Optometrists and ophthalmologists typically use these lenses for patients who suffer from nearsightedness.
Glasses are a type of corrective lenses a person wears on their face. The glasses sit a short distance in front of their eyes. Some of the most common types of glasses include:
The specific lens that the patient needs will depend on their prescription. It is important for them to find a lens that suits their vision needs and a lens that they like. For example, some patients do not like the visible line on bifocals or the "image jump" that may come from trifocals.
Contact lenses are small, bowl-shaped plastic lenses worn directly on the cornea. This placement allows the patient to have a natural view in front of their eyes, with no frames to block parts of their vision. Common types of contact lenses include the following:
Many people prefer to wear contact lenses compared to eyeglasses because of aesthetics, their participation in sports and other physical activities, and the ability to have more natural sight. However, contact lenses require a longer examination period and more follow-ups to maintain quality vision. If applicable, patients will also need to clean the lenses and properly dispose of them.
Corrective lenses can help you see better, even if you have 20/20 vision. They can also protect your eyes from sunlight and blue-light exposure. The first step is to call our office and schedule a consultation. If you have more questions, we would be more than happy to answer them. Take care of your eyes and get started today.
Corrective lens prescriptions are available in Dallas and the surrounding area. To learn more about our services, visit https://www.texasoptical.net or call our office at (214) 771-7333 to schedule an appointment.
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