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18 Different Types of Contact Lenses

Learn about the different types of contact lenses and see which ones are right for you. We covered various types, features, and how to take care of them properly.

Woman putting colored contact lens in her right eye.

For over 130 years, contact lenses have been used as an effective vision correction method. Today, they are still an incredible alternative to prescription glasses or more serious vision correction methods such as LASIK surgery.

If you’re not sure whether contact lenses are right for you, we’ve put together this guide to help. We’ll be detailing everything from the features, designs, and materials used when creating contact lenses.

We’ll even be diving into the latest contact lens formats such as light-adaptive lenses, which were just released last year in the US. So, if you want to learn everything there is to know about contact lenses, read on!

Materials

When considering which type of contacts would be best for your daily use, it is important to think about the material of the lens. There are five types of lenses, and then depending on the type of lens, the materials they are made of will vary.

Soft Contact Lenses

Soft lenses are made of gel-like, water-containing plastics known as hydrogels. Features of these lenses include being flexible and thin, as well as form-fitting to the front surface of the eyeball.

These contact lenses were first marketed in the 1970s. These new hydrogel lenses really helped grow the usage and popularity of contacts because they are extremely comfortable. During this same time period, the only other option for contact lenses that were available to the public was PMMA (which we’ll discuss below).

PMMA lenses were not very popular with consumers because it, on average, would take several weeks for the wearer to adapt to the lenses. Unfortunately, most people were never successful in wearing PMMA lenses.

Silicone Hydrogel Contact Lenses

If we know that hydrogel lenses are soft lenses, then we can deduce that silicone hydrogel lenses are the next level up in soft lenses. They have more pores throughout the lens, allowing for more oxygen to make its way to the cornea.

These new and improved lenses were introduced to the public in 2002 and have maintained their status as the number one most popular contact lens since then in the United States.

Bottle of lens solution along with contacts case on table.

Gas Permeable Contact Lenses

Gas permeable lenses, also known as GP or RGP lenses, are very rigid and have a similar feel to PMMA lenses. However, unlike PMMA lenses, GPs are porous, which allows oxygen to flow through them.

Due to their permeability with oxygen, they manage to have a more direct fit to the eye over PMMA lenses. So these lenses tend to be slightly more comfortable than your typical hard lens contact.

GPs were first introduced in 1978 and were marketed as the upgrade replacement for PMMA lenses. There are benefits to using GP lenses over the soft lenses, even today. For instance, the GP lenses will often provide you with sharper vision, especially if you suffer from astigmatism.

It will take your eyes a while to fully adjust to wearing the GP lenses at first. However, once you make it past the initial period of adaptation, most users find them to be just as comfortable to wear as soft lenses.

Hybrid Contact Lenses

The main reason hybrid contact lenses were designed was to combine the crisp vision quality of GP contacts with the initial comfortability and pliability of soft and silicon lenses. In the center of the lens, there is a gas permeable area that is extremely rigid.

Surrounding that circular area is a skirt of soft or silicone lens material. Despite the fact this lens combines the best features of two different types of contacts, there is still only a very small percentage of people that wear these in the U.S.

This is probably due in part that the lenses are difficult to fit, and they are also the most expensive the soft and silicone lenses when they need to be replaced.

PMMA

PMMA stands for polymethyl methacrylate and is made of a clear, rigid plastic material. This same material is also used for a shatterproof glass window substitute. It is commonly marketed under the names of trademarks such as Plexiglass, Perspex, and Lucite.

While PMMA lenses provide the best quality of vision, they do not allow oxygen through the lens and to the cornea, making it difficult for the eye to adapt to them. Nowadays, these are considered old-fashioned, or more commonly known as hard contacts. These have almost exclusively been replaced by GP lenses and are only prescribed on the rarest of occasions.

Woman putting clear contact lens in her left eye.

Exploring Different Lens Designs

Both forms of soft contacts (standard and silicone hydrogel) come in several designs, depending on the intended use:

  1. Cosmetic contact lenses. These include your colored lenses, as well as your costume lenses. While these can be made to help correct vision issues, their main purpose is for theatrical usage or dressing up in costumes.
  2. Multifocal contact lenses. These lenses are made up of different power zones, which either correct near or farsighted vision. This type of lens will also help correct presbyopia and, at times, astigmatism.
  3. Toric contact lenses. These lenses combine their powers through opposing meridians of the lens to fix astigmatism, as well as nearsightedness or farsightedness.
  4. Spherical contact lenses. These shaped lenses will have the same amount of visual correctness throughout the entire lens for either nearsightedness or farsightedness.

If necessary, you can custom order contacts in any of these shapes if you have hard-to-fit eyes. If you need corrective lenses for a cornea abnormality, you’ll probably want to find a hard contact option.

Additional Features

Myopia Control Contact Lenses

Myopia control contacts are lenses that are currently in the developmental stage. They are being developed to slow, but hopefully completely stop, the progression of nearsightedness in young kids.

Colored Contacts

Colored lenses are not your typical contact lens. People use these when they are looking to enhance the natural color of their eyes. However, if you want to be more daring, you can choose a color that is completely different than your natural eye color and give yourself a fresh new look.

Scleral lenses

Scleral lenses are GP lens with a large diameter. They are specifically made to help treat keratoconus and other abnormalities of the cornea, along with presbyopia.

Contact Lenses For Dry Eyes

Chronic dry eye is a real thing, and there are now specific types of soft contacts made to help reduce the risks of dry eyes related to contact use. These lenses tend to be very permeable and pliable to your eye.

Prosthetic Contacts

Not all contacts are designed specifically to enhance eyesight. Prosthetic lenses were developed to help people who may have suffered an eye injury or their eye becomes disfigured in some way. These lenses are custom made to match the person’s other eye to make it appear the same.

Woman in horned witch costume wearing prosthetic contacts.

Special Effects

Special-effect lenses are typically used in theatrical productions or when people are dressing up in costume. The goal is to make the shape of your eye look unnatural and not human. Common examples would be a vampire or cat-eye lens.

UV-Inhibiting Contacts

As of today, there are some soft lenses that are manufactured to help protect your eyes from UVA rays that can cause cataracts and other long term eye damage. Due to the fact that contacts only cover a small portion of your eyeball, it is always a smart idea to wear protective eyewear over your eyes when out in the sun.

Custom Contacts

If you have tried all of the options of contacts available to you, but still haven’t found the right pair, you could consider ordering custom lenses.

This would be an extreme case as the vast majority of contact users can use the currently available types. In order to get custom lenses made, they will need to measure and scan the shape of your individual eyeballs to fulfill your vision needs.

Bifocal Lenses

If you happen to have either astigmatism or presbyopia, bifocal contacts are an advanced soft contact lens that can correct these abnormalities. You can even remain bifocal and glasses-free until after age 40 using these lenses if you have astigmatism.

Optician putting contact lens in her patient's eyes.

When Should Your Contact Lenses be Replaced?

All contact lenses (especially soft ones) have a life cycle, even if they are taken care of properly. Depending on the exact type you use, you should make sure to frequently replace them to help prevent any build-up of bacteria that could cause eye infections, or worse.

Typically, on the box of your soft lenses, there will be instructions for how often you should be changing out your old lenses with new ones.




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