Lenses at Invision Optical
Has your primary care provider said you need glasses, but you’re afraid they won’t look good? Do you think contacts might hurt your eyes or be hard to take care of? It’s normal to have lots of questions and feel nervous about getting glasses or contacts. However, it’s important to wear them if your vision needs correcting. Not wearing corrective lenses can cause headaches and other problems. In this article by Invision Optical, we will take a look at how corrective lenses work, and how to know if you need glasses to correct your vision. If you are in need of corrective lenses, we encourage you to continue reading this article, and visit us at Invision Optical today!
Why would I need corrective lenses or contacts?
Many people have trouble seeing objects up close or far away. This is called a refractive error and is the most common type of eye problem. Refractive errors are caused by the eyes’ shape being abnormal. This means that the eye doesn’t bend light in the right way to create a clear picture. Wearing glasses or contacts is one way to correct your vision and help your eyes see clearly. You could have refractive error, and be in need of corrective lenses from Invision Optical if:
- Your vision is blurry or hazy
- You have headaches
- Your eyes hurt
- You see a glare around bright lights
- You have to squint to see well
- You see double
- You have trouble driving at night
How many types of corrective lenses are there?
There are multiple types of corrective lenses available. These include:
- Single vision lenses
- Bifocal lenses
- Trifocal lenses
- Progressive lenses
- Adjustable focus lenses
- Plano lenses
Single Vision Lenses:
Typically single vision lenses only correct one distance, meaning they will either be for reading or for distance viewing. If they correct for distance, the person must accommodate to see clearly in close-up situations. Depending on the patient’s capabilities, this may require them to take off the glasses when reading. The same is true for people that need glasses for reading, but do not need them for distance viewing.
Bifocal lenses are designed to have both distance and reading capabilities all in the same set of glasses. With bifocals, the upper part of the lens is used for distance vision, while the lower segment is used for reading or near version. This area of the lens that is specifically for the reading section, the lower section, is known as the add segment. There are many different shapes, positions and sizes for the add segment depending on the functional difference necessary to improve the vision of the patient.
Progressive addition, also known as varifocal lenses, are able to provide a smooth transition from distance correction to near correction. This eliminates any segmented lines, and also allows for clear vision at any distance. This can be extremely beneficial in intermediate, roughly arm’s length, situations. There is also a distinct lack of any abrupt change in power. The uniform appearance of the lenses has to lead to these types of progressive corrective lenses to be known as no-line bifocals.
For more information about corrective lenses at Invision Optical, please feel free to continue browsing through our website. Our team of experienced optometrists can get you fitted with a pair of corrective lenses that suit your vision needs and your budget! Click here to find our contact information and to fill out our contact form.