What are Contact Lenses?
Contact lenses are small prescription lenses. They’re designed to correct refractive errors and maintain ocular health. Modern contacts are far more than small eyeglass lenses that fit onto your eyes. They do, however, function very similar to regular eyeglasses—refracting and focusing light in order that objects appear clearly. Since the lenses stick with the tear fluid on your eye surface, they move naturally with you. This is often but one advantage contacts have over glasses.
They are an incredible vision correction option for people of all ages – and therefore the proof is within the numbers.
Contact lens usage is additionally increasing thanks to recent technological advancements in lens technology that have made contact lenses safer than ever. Even people that have had problems wearing contacts within the past often are good candidates for contact lenses today.
We offer you some basic information about the three main categories of contact lenses after which you’ll be better informed when consulting together with your ophthalmologist. For the very latest, most accurate information, visit an eye specialist’s office for a comprehensive contact evaluation to ascertain which lenses could be best for you.
The development of contact lenses
Contact lenses and their concept are around for much longer than most people believe.
Along with many other modern-day conveniences, “Leonardo da Vinci” envisioned the concept of contact lenses in 1508. In 1636, Renee Descartes took this further by sketching a protruding contact. Later, in 1801, a scientist named Thomas Young became the primary to wear a contact, which was secured to his eye with wax!
Types of contact lenses:
There are four main categories you would like to remember:
2.Rigid gas permeable lenses
Also called hydrogel or silicone hydrogel lenses, soft contact lenses are very thin, moist, and made from water-absorbing materials that give them a gel-like feel. Roughly 50% of a load of a soft lens is thanks to the water it contains, making them extremely comfortable and super easy for you to wear.
Soft lenses are handily the foremost popular sort of contact. Most of those are silicone hydrogel lenses, which transmit more oxygen to the surface of the attention than conventional hydrogel lenses. Soft contact lenses are made from a thin and porous plastic containing hydrogels. Not like the hard contacts, hydrogels in soft contacts are supple. This enables superior breathability, making these the foremost popular lens type and they’re comfortable to wear without having to “break them in”. Here are the tips to take care of soft lenses:
- You’ve chosen the proper pair of eye contact lenses, now you will be required to take care of them.
- Caring for your contact lenses includes practicing good hygiene, cleaning and storing your lenses, and knowing when it is time to eliminate them. This is often the simplest trick to avoid discomfort, poor vision, irritations, and infections.
- Cleanliness and good hygiene will ensure your “Soft contact lenses” don’t offer you any problems.
- It should go without saying, but always remember to scrub your hands before touching your lenses.
- Contact lenses sit directly on the surface of your eye, so germs could easily get trapped between your eye and therefore the lens.
- Your contact lenses are required to be cleaned daily with a sterile solution.
- An equivalent goes for the tip of the bottle of contact solution and therefore the contact case.
Be sure to stay these points in mind when deciding if contact lenses are right for you. What’s most vital is that you’re totally comfortable with your decision to wear contact lenses. Trying anything for the first time is often scary, so it’s okay if you are feeling nervous! But once you visit your ophthalmologist, you ask as many questions as you would like, so that your fear goes away.
Simple hygiene helps in avoiding serious eye infections.
Around four out of every 10,000 contact wearers suffer from bacterial eye infections on a yearly basis.
While Acanthamoeba infections are rare, bacterial eye infections are far more common, estimated to affect around four per 10,000 contact wearers every year.
About 13% of individuals whose eyes or contact lenses are infected with bacterial infection lose substantial vision.
However, bacterial infections are often severe and fast-acting. The most known bacterium liable for contact lens-related infections is pseudomonas, another water-loving microorganism. It can sometimes burrow through the attention surface in hours.
Rigid Gas Permeable Lenses
These contacts, also called GP contact lenses, are made from rigid plastics and sometimes provide sharper, more stable vision than soft lenses. GP contact lenses provide more oxygen to the surface of the attention than many soft lenses, decreasing the danger of certain contact lens-related eye problems. GP lenses generally have a smaller diameter than soft lenses, making them fit closer to your eye.
However, their rigid nature and thicker profile can take time to get used to, and a few people cannot wear the lenses comfortably.
A hybrid contact lens combines the above two contact lens types together. Hybrid contacts have a center made from a rigid gas permeable plastic, surrounded by a soft lens material. This hybrid design combines the sharp optics of a GP contact with the comfort of sentimental lenses.
However, hybrid lenses are costlier than either soft or GP lenses, and fitting is often tougher and time-consuming. For these reasons, but 5 percent of contact wearers within the U.S. wear hybrid lenses.
Colored contacts are an excellent option for those looking to juice up their look or maybe just experiment with their natural features. It’s singular and safe thanks to fiddle together with your look.
• Visibility tints – This is often usually a light-weight blue or green tint that is added to a lens and it’s designed to assist you to see the lens better when inserting and removing contacts, or just in case you drop one. Since it’s a really light tint, a colored lens with a visibility tint doesn’t affect your eye color.
• Enhancement tints – This is often a solid, but translucent (see-through) tint that’s a touch darker than a visibility tint. An enhancement tint lens is different because it doesn’t change your eye color. Because the name implies, its purpose is to reinforce the prevailing color of your eyes. These are usually recommended for contact wearers who have light-colored eyes and need to accentuate their eye color.
• Color tints – These lenses are deeper, opaque tints that alter your eye color completely. Color tints typically contain patterns of solid colors. If you’ve got dark eyes, this is often the sort of lens that will be necessary so as to vary your eye color. Color contacts are available in a good sort of colors, including hazel, green, blue, purple, and grey.
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