Prescription Lens Guide

Possibly the most important part of the eyewear buying process is choosing the right eyeglass lenses. The quality of your lenses, their attributes and their coatings all contribute to how happy you are with your eyeglasses. There are so many options available on the market today, so it can be difficult to decide which type of eyeglass lens is best for you and your unique lifestyle.

This guide to eyeglass lenses will help you better understand what options are available to you and help you choose lenses and coatings to fit your preference and lifestyle.

 

Prescription Type

The lenses you choose are primarily determined by the vision-correcting properties you are seeking. Depending on your visual needs, you may need either single-vision or multi-vision lenses.

For many people, single-vision lenses correct their vision sufficiently, either for distance or for reading.

 

Single-Vision Distance

If you are part of the 42 percent of the American population living with nearsightedness, you may be looking for single-vision distance lenses to correct your vision. If you have distance-corrective glasses, your prescription will begin with a (-), and your lens will be concave, or curve inward, to correct your vision properly.
 

Single-Vision Reading

Reading lenses are designed to help you see things at a close distance, typically between 30 and 40 cm. These lenses are convex, or curve outward, and are appropriate for people with prescriptions beginning with a (+).

While single-vision lenses are suitable for a large portion of eyeglass wearers, your eyes may be unique. If you have difficulty seeing at both close and long ranges, you may need bifocals or multifocal. These glasses correct your vision at multiple distances, allowing you to see clearly — both up close and from a distance.
 

Progressive Lenses


Progressive Lenses are unique lenses, designed to seamlessly incorporate distance, middle- and near- vision correction. Because these lenses are highly personalized, they can correct even the most unique eyes, and provide all the benefits of bifocal lenses without the obvious horizontal line.

If you have particularly unique eyes, or need bifocals but do not want the obvious line in your lens, consider progressive lenses.

 

Bifocal Lenses


Bifocal lenses are the most common type of multifocal lens. These lenses correct both near- and long-distance vision by combining two prescriptions into a single lens. The upper part of the lens is designed to correct distance deficiencies, while the bottom portion is a near-distance lens meant to correct up-close vision.

These are excellent choices for people who use both distance and reading glasses, so they do not need to carry around two pairs of glasses wherever they go.

 

Lens Coating

Coating can give your lenses different attributes, making them behave differently according to their environment.

 

Anti-Scratch Coating


No pair of glasses is indestructible, but that doesn’t mean they can’t be protected. Anti-scratch coating defends your lenses against scratches and abrasions from everyday wear and tear, and helps reinforce them against drops.

Everyone can benefit from a little extra protection, which is why all of LUOMON customers can benefit from this incredible coating — it comes free with all of our glasses!

 

Anti-Reflective Coating


Anti-reflective, or AR, coating is another beneficial coating for any pair of eyeglasses. This coating gets rid of annoying glare, halos around lights and reflections on your lenses caused by computers and lights. They also make your lenses nearly invisible by removing reflections, making your lenses less of an obstruction during face-to-face conversations or photography sessions.

Anti-reflective coating is especially important for people with high-index lenses, as these lenses have higher refractive indexes. This increased refractive index means these lenses will tend to reflect up to 50 percent more light than traditional lenses, causing more glare unless they are equipped with AR coating.

Anti-reflective lenses are important for nearly everyone in the modern world — especially those working around computers or cameras or regularly driving at night.

 

Water-Repellant Coating


All eyeglass wearers dread getting rain or water on their eyeglasses. Droplets can leave behind smudges or dirt on your lenses and cleaning them properly can be a hassle — especially in rainy weather. However, there is a solution!

Water-repellant coatings keep water droplets, dirt, and smudges off your lenses, which helps to maintain their cleanliness and reduces the need for you to clean them regularly. Lenses with this premium coating stay crystal- clear up to twice as long as your normal eyeglasses!

If you live in a rainy area, work, or live around water sources or simply like to be in and around the water, we recommend looking into this lens coating to help keep your lenses as clear as possible!

 

UV Protective Coating


Exposure to the sun’s harmful UV radiation is associated with numerous age-related eye problems, such as cataracts and macular degeneration. Because of this, doctors encourage people to protect their eyes from UV radiation. This is why UV protective coating is so important for everyone. By deflecting harmful UV rays from the sun before they can damage your eyes, this invisible UV protective coating works like sunscreen for your eyes.

 

Lens Index

The index of your lens, also referred to as the index of refraction or refractive index, is a number that indicates how efficiently the material bends, or refracts, light. The higher the refractive index of the lens, the more slowly light moves through it, and the more the light bends. For you, this means a thinner high-index lens will perform the same as a thick set of standard low-index lenses.

Additionally, higher indexes are able to handle higher prescriptions. If you have a particularly strong prescription, a lens with a higher index may be the best choice for you. 

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