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yes, people care about their appearance and how other people think of them. Contacts also help athletes who dont want glasses as it will get in their way.
hope this helps x
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∙ 14y ago
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What are contacts made out of?
These are the types of contact lenses and the material(s) they're made out of: 1. rigid lenses - polymethyl methacrylate (now improved) 2. soft lenses - silicon hydrogel (which is the material that is being used in manufacture of contact lenses today) 3. hybrid - mixture of materials of both rigid and soft lenses
Why was contact lenses invented?
In 1948, California optician Kevin Tuohy (1919-1968) introduced the first contact lenses that resembled modern gas permeable contact lenses of today. Wichterle and Lim's discovery led to the 1971 launch of the first FDA-approved soft contact lenses in the United States - Bausch & Lomb's "SofLens" brand contacts. It was done for people who didnt like to wear glasses..
How do bifocal contact lenses work?
Contact lenses is another way to correct vision besides wearing glasses. I am nearsighted and can't see anything without my glasses. It corrects my vision and I don't have to worry about having my glasses break
What are the different types of contact lenses?
Contact lenses may be daily or monthly.Daily disposables are worn once and thrown out. They are convenient and hastle free and do not require any lens care regimes.Monthly disposable lenses are worn for a month and require cleaning every time they are used.Depending on your need and frequency of use either option could be suitable for you.Contact lenses basically are of two types soft and hard – These are made of plastics and other material that allow oxygen to pass through to the cornea. The hard lenses most commonly used today are rigid, gas-permeable lenses for short. Excellent
What are some optometrist approved fun contact lenses?
While many of the fun contact lenses available on the Internet today are not optometrist approved there are a couple of diamond exceptions that are approved and completely legal for purchase in the US. One really fun and colorful pair of contact lenses that are also FDA approved are circle contact lenses from Vision Direct. These lenses are not circle lenses made in Asia but rather are called circle lenses because they have a dark ring at the outer edges to mimic the eye's natural ring and make your eye and the color embedded in these contacts really pop. They are certainly fun and will be a very noticeable change to anyone who knows you but they are also completely safe and can be worn with confidence. They come in a half dozen eye popping colors and are available in both prescription and non-prescription strength but as these lenses are sold by a reputable US on-line store (powered by drugstore.com) they will require a current doctor's Rx. See the related links section for more information related to these FDA and optometrist approved fun circle contact lenses.
What are the best contact lens solutions?
Visit Guru4Eyes.com to learn more about contact lenses and to order your lenses at a saving of 70%. Now your answer... Your doctor will be the most qualified person to recommend contact lenses to you. However, there are three basic types of contact lenses to select from: # Hard: Since the invention of soft lenses, these rigid PMMA lenses are rarely used today. # Soft: Purchased by 75% of contact wearers, soft lenses are made of plastic that incorporates water, thereby making the lenses soft or flexible. It also allows oxygen to flow to the eye, thus ensuring the health of eye-tissue. # RGP: These are Rigid Gas-Permeable lens, which are similar to hard contact lenses however, RGP's allow oxygen to flow through to the eye. Regardless of the type of lens you wear, it is strongly recommended that you remove contact lenses every evening prior to bedtime. Over-the-counter cleansing solution should be used to ensure your lens is free of bacteria and dirt prior to placing them back into your eye. The risk of eye infection is high when you leave your contact lenses in too long or fail to clean them. After using contact lenses, should you experience problems with your eyes such as blurry vision, scratchy feeling, pain or extreme redness, you should see your doctor immediately.
Why is the radio's of the 1920 still important today?
The radio is important today because we still use it to contact people in the world other than cell phones.
What are eyeglass lenses made of?
According to Wikipedia, today's lenses are typically made from plastic, such as polycarbonate. Plastic is used in order to lessen the chance of breakage.
How Contact Lens Wearers Can Keep Their Eyes Healthy and Clean?
People with impaired vision have a variety of options to choose from when it comes to corrective lenses. One can choose contact lenses, traditional eyeglasses, and even surgery to restore 20/20 vision. Surgery is the most drastic step, and eyeglasses are perhaps the easiest vision corrector to deal with, but within these two extremes are contact lenses. Though it is not difficult to take care of contacts, there are some important steps that need to be followed in order to maintain eye health and keep the lenses in good condition. Eye care specialists routinely list the following ways in which users can wear contacts without compromising health or cleanliness.First, it is vitally important that those who wear contact lenses never wear them beyond the length of time that is prescribed. Lenses that are worn too long can deteriorate and cause vision problems, and they can keep the eye from flushing out dirt naturally. So, for example, if the lenses are supposed to be worn only for two weeks before throwing them away, wear them for only two weeks before throwing them away.Second, eye care specialists warn contact lens wearers to take their lenses out everyday and clean them. Today, it is very easy to care for most kinds of contact lenses. All that it takes is to rub them with an approved cleaning solution, rinse them with the same solution, and store them overnight in the solution in the contact lens case. Diseases and infection can result when lenses are not cared for properly, and some of these problems can even lead to blindness.Finally, sterility should be a chief concern for all those who wear contact lenses. Practically speaking, this means that contact lens cases should be rinsed out with the cleaning solution every day, and once a week it is wise to wash the case with soap and water, rinse it with the contact solutions, and let it air dry. Also, keep the tip of the contact lens solution bottle from getting dirty. If sterility is a prime concern for those who wear contact lens, as eye care specialists say it should be, then the risk of disease for the lens wearer will be much lower.
Where is lanthanum found today?
In lighting,microscope and camers lenses, and pool cleaners
Does the college classes you take 10yrs ago still good today?
Depends on the university. Contact the university to see if they work.
Does a microscope use a concave lens or a convex lens?
Today's microscopes use convex lenses.
