Contact lenses are often touted as being far better than glasses and in many ways they are. However, it's a good idea, like anything, to know enough about contact lenses before buying them to make an educated decision.

Types of Contacts

There are three main types of contact lenses, hard, soft and disposable. Hard contact lenses are rigid and can be more irritating to the eye, but they do last a lot longer, up to three years. Soft contact lenses are easier on the eye and can be worn for longer periods of time. They are usually replaced after a year or so of use. Disposable contact lenses are becoming very popular these days, since you can just use them and dump them. These are the cheapest types of lenses, but they are usually not specifically made for your eyes, which can cause issues.

In addition to disposable contacts, you can get 1 week or even 1 month contacts which are designed to stay in your eye for longer periods of time, but need to be tossed afterwards. Many people prefer disposable contact lenses because they eliminate the need for cleaning and saline solutions, etc. which can get confusing and messy, not to mention they are rather time consuming.

Your eye care professional is the best person to help you choose the right type of contact lenses for you. Different eye conditions require different types of contact prescriptions which may only be available in one type of contact. Also, your daily activities may dictate the need for a specific type of contact lens.

Wear and Care of Contact Lenses

Many people find that the first few times putting their new contact lenses in is a bit scary. You need to overcome the natural instinct to keep foreign objects out of your eye in order to insert them and this is more difficult for some people than for others. Usually this is just something you have to do a few times in order to get over it.

There are other issues with wearing contact lenses. For example, you shouldn't wear them in the pool or while showering, since they could be flushed out of your eyes or get water trapped behind them. Water that has chlorine in it is particularly irritating, but even regular tap water can contain bacteria that can be caught behind the contact lens and cause an infection. The easiest way to prevent problems like this is to simply remove your contacts while you shower or swim.

Looking after your contacts can be simple or complicated, depending on what type you use. Disposable contact lenses don't require any cleaning, you simply toss them when you are finished using them. Other, reusable contacts will need more care. You will have to soak them in a cleaning solution and rinse with saline. In some cases, more drastic measures need to be taken to remove protein or calcium deposits, including special tablets that dissolve in the regular cleaning solution. If your eyes are sensitive, you may have to experiment with various brands of cleaning solution to find one that doesn't irritate your eyes.

Contact lenses offer a freedom from glasses, but they aren't completely hassle free. Knowing what to expect is the best way to make a good decision as to whether contact lenses are for you or not. Talk to your eye care professional as well to get more information, since he or she will know your specific case and is in a good position to recommend the type of contacts necessary.

 

Before we get to the invention bifocal contact lens, we need to go back a bit further to see the evolution of contact lenses. The idea of the general principal of a contact lens was made my none other than Leonardo Di Vinci in 1508, yes the famous artists who painted Mona Lisa!! Not only was he a painter he was also a scientist, mathematician, engineer, inventor, anatomist, sculptor, architect, botanist, musician and writer. That is a story for another article (a whole book even), so let us get back to the invention of contact lenses.

It wasn’t until the 1800’s that the contact lens made another leap forward. In 1827Sir John Herschel an English astronomer, proposed the idea of making a mould of the wearer's eyes so contact lenses can be made to conform perfectly to the front of the eye. His idea was slightly ahead of the manufacturing techniques at the time.

Not until 1887 was the idea made into reality by German glassblower F.A. Muller, who made the first glass contact lens. In 1888 Swiss Physician Adolf Fick and Paris Optician Edouard Kalt used Muller’s invention to fit the first glass contact lenses to correct nearsightedness and farsightedness. These lenses were heavy and could only be tolerated for a few hours.

The next significant leap forward came in the 1930s when the first contact lens containing both glass and plastic was introduced by New York Optometrist William Feinbloom. This was the beginning of the modern hard contact lens era. In the late 1940s marks the beginning of polymethyl methacrylate (PMMA) plastic contact lenses manufactured by California optician Kevin Tuohy. The PMMA evolved, getting smaller and thinner and are still available on the market today.

It wasn’t until the 1950s saw the evolution into the soft contact lens by Czech chemist Dr. Otto Wichterle. His experiments using spinning parts from his son’s bicycle led him to produce the first soft contact lens.  The first commercially produced soft contact lenses were made by Bausch & Lomb in 1971. Over 90% of the contact lenses on the market today are soft contact lenses. Due to their ease of handling and disposable convenience, these lens are perfect for those who no longer want to wear glasses.

The first commercially available bifocal contact lenses (daily wear) were introduced in 1982 and the disposable versions in 1999.

As you can see contact lenses were more of an evolution, with each inventor building and advancing from a previous idea. It took over 500 years to get where we are today but I am sure glad we have this amazing invention that many of us can benefit from.

More on Bifocal Contact Lenses

These lenses are for people who have a condition called presbyopia or the inability to focus on things in close range. If you have to hold that menu at arms length to read it, you might have presbyopia. Some physical symptoms might include blurred vision, headaches, eye strain or eye fatigue. If you are tired of wearing bifocal glasses, bifocal contact lenses might be the perfect solution for you.

Bifocal contact lenses are also known as Multifocal or Progressive contact lenses. They all pretty much serve the same purpose, allowing you to see clearly near and far and all distances in between.

Thank you for taking the time to read this article, I hope you enjoyed it.

Happy contact lens hunting.

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If you've ever seen a movie about vampires or monsters where people have oddly colored eyes, cat eyes or other types of eyes, you've seen special effects contact lenses in action. These contact lenses, rather than correct sight (though some are actually prescription as well) create a special effect in the eye.

These lenses come in a wide variety of types and are available to the general public. While certain special effect contact lenses are designed especially for a movie, you can also expect to find similar ones on the public market within a few months after the movie is released.

Styles of Special Effects Contact Lenses

There are so many different types of these contact lenses that you can really get any look you want. For some people, this means simply changing their eye color. Light eyes can easily become any color you like, from green to blue to brown or even purple. Dark eyes are more limited in the options, but can usually go with black, dark green and sometimes a dark blue or purple.

For more zany effects, there are plenty of other options. Everything from the very scary cat eyes or red hellish eyes to more benign smiley face contacts can be had. There are circuit board contacts, zebra or tiger stripes, and just about anything else you can imagine. There are even images available to place in your eyes, so you can have a tiny flower or mountain scene actually placed on your eye.

Not every special effects contact company will provide all of these options, but you'll find that the catalogs of effects are quite surprising.

Why Use Special Effects Contact Lenses

For some people, it's a matter of feeling better about themselves. If you don't like your eye color, for example, being able to change it to something you feel is more acceptable can be a good boost for your self esteem.

For others, it's about conveying who they are inside. Science fiction fans, for example, might want to use eye color and styles that represent their favorite sci-fi characters. Those who are fascinated by vampires may prefer vampire style eyes while those interested in technology might want to surprise their friends with circuit board eyes.

Special effect contact lenses are usually only used a handful of times. Some are actually one use only and they are completely disposable. This type of contact lens is ideal for Halloween parties or other disguises. If you are in need of a costume for a play, special effect contacts can also come in handy, as with role playing activities.

Should You Use Contact Lenses for Effect?

Not everyone is interested in using contact lenses. If you have eye problems, you might want to talk to your eye doctor before trying special effects contact lenses. They usually aren't meant for long term use and if you aren't accustomed to wearing contacts, it is better not to leave them in for very long. Two or three hours is the recommended period for beginning contact lens wear.

If you already use glasses or contact lenses, you can get special effect lenses as prescriptions, too. So, they would just replace your regular contact lenses. Otherwise, glasses can be worn in combination with the contact lenses, though some people find this ruins the effect they are going for. For simple color changes, however, it works fine.

Special effects contact lenses can be a lot of fun to play around with, but they are also very practical if you need a new look. Check out the different options available and choose the ones that suit you.

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Earlier when eye vision needed to be corrected, people preferred glasses. But glasses often can't be worn while playing sports, as they slip on nose.

Then came contact lenses which are easy to use and manage, and almost undetectable. The contact lens is made up of thin plastic discs that are curvy at the inside so as to fit easily on the eye surface. The lenses are shaped externally so as rectify and better poor eye sight.

This contact lens is also used to bandage the eyes after surgery. There are also cosmetic benefits of lenses like covering eye's white scarring with them or changing the color of the eye according to the dress for fashion.

Types of Lenses

Disposable lenses: The disposable contact lens is used for a limited time period that might be a day, a week or a month depending on the type of lens. The disposable lens is good for the people who cannot care and clean the contact lens regularly. The disposable contact lens comes in different colors and according to eyes also.

Gas Permeable lens: The gas permeable lens transmits more oxygen to the eyes so as to provide clarity of vision. These lenses are durable and easy to clean so last up to a year. These lenses are made of semi rigid material with no water so the wearer takes some time to adapt to them.

Flexible and extended wear contacts: These are specially designed so that the wearer can use them continuously for several days. One can also take a nap while using the lenses in eyes. This contact lens allows more oxygen to reach the eye cornea.

Annual soft contact lenses: These lenses prevent eyes from drying as its soft material aid oxygen transmission. These lens need good care, cleansing and storage as used for a complete year.

Cosmetic Lens: Four varieties of cosmetic lenses are in the market. They are light-filtering tints, visibility tints, enhancement tints and opaque color tints. The power value of the lens lies in the center so it needs typical cleaning regime daily. But there are also cosmetic lens that are without visual correction.

The contact lenses can now correct all types of visual defects like Astigmatism.

Caring for your contact lens

While wearing contact lens the person feel comfortable with his vision but proper care of lens is also required for preventing any eye infection. You should keep your contact lenses disinfected and clean as contact lenses get so many deposits on them both from the environment and the eye whilst wearing them.

Tears contain lipids, mucous, proteins and calcium that deposit on the lens. The pollutants in the environment like metal and dust particles from cars and factories embed to lens surface.

So to save contact lenses from these deposits, they should be soaked in eye solutions daily for disinfection. If these deposits remain on the surface of the contact lens, it may lead to redness in the eye and recurrent infections. So daily cleaning of contact lens with surfactant cleaner by rubbing in the palm is very important.

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How important is the health of our eyes? This might well sound like a ridiculous question we are all fully aware of how critical our eyesight is. Of course you would never deliberately do anything to hurt your eyes but if you wear contact lenses you may not realise taking the correct care of your contact lenses has a major affect on your eyes.

Here are some tips to help you wear your contact lenses comfortably and look after your eyes at the same time.

To ensure no bacteria are transferred to your eyes always wash and rinse your hands thoroughly before touching your contact lenses.

Your optometrist is the ideal person to inform you of the best contact lens cleaners and eye drops to use. It is important to read and use the instructions that you will get with your contact lenses, contact lenses cleaner and eye drops.

The case you use for your contact lenses also needs to be taken care of. Some people overlook the fact that your should clean, rinse and dry the case each time the contact lenses are removed. Ideally you should get a new lens case at 6 month intervals.

Check before buying eye makeup that it is contact lens friendly.

Be sure to remove your lenses and refer to an eye specialist as soon as possible if your vision changes, your eyes are red, your eyes are painful, you have excess tears or itchiness in your eyes.

Now that we have covered a lot of things that you should do to look after your contact lenses and eyes we will cover several things you should not do.

Never clean your lenses by spitting on them. Do not rinse or store your contact lenses using bottled water, tap water or home made salt water. All of these things can cause infections.

Don?t let creams, sprays or lotions touch your contact lenses, when using cleaning products remove your lenses and never put eyeliner on the inside of your lower eyelid.

If you use daily wear contact lenses never sleep in them not even for a short nap and do not wear them for a longer period than your eye specialist tells you to.

Finally be aware of the different kinds of contact lenses and make sure you know what type you have. Below is a summary of the various types, how long to wear them at one time and when they should be cleaned.

Extended wear contact lenses are left in even when sleeping for anything up to thirty days. They need to be taken out and cleaned after thirty days.

Daily wear contact lenses are used again and again. You can wear them for one day but take them out when you go to bed or even take a nap. They require cleaning and rinsing every time you take them out or when you have not worn them in a long time.

Daily wear contact lenses are worn all the time. You wear them during the day but take them out when going to bed or when sleeping. They need to be cleaned and rinsed each time they are taken out or if they have not been used for a long time.

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The looks of a person can be enhanced to make a world of difference in coordination with the garment worn, thanks to the color contact lenses. Color contact lenses are merely for aesthetic purposes and are cosmetic accessories and are not for medicinal values and therefore, should be used only for a limited period of time.

Basically color contact lenses are of two types, disposable and extended wear. The former type is used only for about a week or so and the latter, up to a year and longer, depending upon the usage. Although there are many varieties and colors in color contact lenses, blue is the most popular among them all. There are light filtering tinted lenses for athletes and sports persons.

But it should be ascertained whether the contact lenses come from an optical outlet that is licensed and should be safe. Also, the color contact lenses must not have a negative impact on the vision of the wearer and must not block the vision and give a hazy look.

Color contact lenses can either be color enhancers which, as the name indicates, enhance the light color of the eyes and make them look richer and deeper. Or they can be color changers which are specifically designed to work with dark eyes, that prevents the initial color and give a new shine to the eyes. There are specialty lenses also that are meant for special effects and are called novelty contact lenses. There are opaque lenses that entirely change the color of the eye.

When taking into the consideration the safety aspects, it is important that the color contact lenses are purchased under the prescription of a medical practitioner and is from a reputable manufacturer. This is due to the fact that color contact lenses do not allow oxygen to pass through them and so should not be worn for more than six or eight hours a day and must not be worn while on sleep.

Color contract lenses are manufactured to look as natural as possible, even with a series of small colored dots on the lenses but the centre is left as such for clear visibility. As always, color contact lenses should be cleaned in a contact lens solution approved by the FDA and the quality should never be compromised.

Some of the color contact lenses are available with inbuilt ultra violet radiation protection to safeguard against the harmful sun's rays. Color contact lenses have come to stay just like a facial, skin treatment or hair fashion. Color contact lenses, undoubtedly, help to change the complete look of the person and are preferred by those who want to have an adventurous life and make them noticeable and give an effective appearance.

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Soft contact lenses are flexible plastic lenses which absorb water in the eyes and become soft and hence are also known as hydrophilic. Soft contact lenses are made of plastic hydro gel polymer that consists of thirty-five percent to seventy-five per cent water.  

Soft contact lenses fit perfectly on the eye balls and are not felt by the user. They are used to correct vision and are better than rigid lenses because they fit exactly on the eye balls.  Soft contact lenses are used to correct near sightedness or far sightedness and also problems related to bifocal vision.

It is also possible to have a specialized type of soft contact lenses to reshape the cornea while wearing them during night time.  But the draw back is, they have to be worn compulsorily every night, to get a good vision the next day.  Since soft contact lenses blend well on the eye balls, the chances of dust particles entering the eyes are minimum.

Soft contact lenses are made up of a special kind of material to retain the moisture of the eyes and make the surface of the contact lens stay wet.  The main advantage of soft contact lenses over their other counter parts is that, they allow free flow of oxygen and are permeable thus maintaining healthy eyes. 

Though disposable, soft contact lenses are a little expensive, but they are preferred because they alleviate the need to clean the lenses and store them in a contact lens solution, specifically manufactured for this purpose.  Even in soft contact lenses colored lenses are available, which serve aesthetic purposes .When disposable contact lenses are used, the user has the facility of wearing them intermittently like week end or occasions.  There are extended wear soft contact lenses which are worn overnight for one week and replaced every one to two weeks.  But they have to be disposed in the prescribed time; otherwise it would be an invitation to potential disaster. 

The most common problems occurring for the wearer of soft contact lenses can be irritation of eyes and blurred vision.  These inconveniences should be evaluated in the initial stages. Upon removal of the contact lenses, if the blurred vision lasts for hours, then the medical practitioner should be consulted immediately.

The size of the soft contact lenses can vary from 13 to 14.50 mm and as they are thinner, they are almost weightless and the wearer will barely feel the presence of the soft contact lenses. Soft contact lenses tend to absorb the many kinds of pollutants like lotion or soap which may cause irritation to the eyes and are prone to be torn off. Nevertheless, it is advisable to consult the eye specialist before choosing the type of soft contact lenses.

advantages of soft contacts

Hi! You look beautiful with your eyeglasses. Want to be able to see in the rain, though, like when you're playing sports?

Contact lenses have flooded the market. They can be easily placed on the cornea of your eyes, enabling vision even in the rain. And while they may be tough to put in your eyes at first, it gets easier with practice.

Here are more points to ponder about contacts:

1) Chemists from Czechoslovakia invented the contact lens in 1961. The main advantage with contact lens is the comfort factor.

2) Each person has different power in the eye and therefore contact lenses with varying powers are available with the eye care practitioner.

3) If your eye care practitioner detects astigmatism in your eyes, he may gives you toric soft contact lenses to correct the problem.

4) Contact lenses come in different shades. Choose one with your eye color or a complimentary tone, your choice.

5) Even if you have the problem of dry eyes, there are many different combinations of contact lens and solutions.

6) Cleaning, the quality of lens and wearing habits go hand in hand in providing your eyes with good care.

7) Contact lenses like the extreme H2O, biomedics XC and proclear compatibles have been designed specially for dry eyes.

8) If you are a sportsman or woman, contact lenses can help; they provide a clear stable vision and wider field of view than eyeglasses. Contact lenses also don't get fogged up or slip down during games.

9) Some rigid gas permeable contact lenses allow dust to accumulate below the surface and create an irritation to the eye. This problem can be solved by using contact lens drops or rinsing the lens with solution. Or go soft; soft contact lenses fit closer to the eyes.

10) Negligence in cleaning the lenses may blur the eyesight and may develop into an itching sensation, leading to possible infection. Enzymatic cleaners help remove protein deposits from contact lenses, thereby keeping them clear and transparent.

11) You are advised by the eye care practitioner not to share your contact lens with others.

12) You should not wear your lenses for longer periods than your eye doctor recommends because there are chances that you may deprive your eyes of the correct oxygen supply leading to possible damage of the cornea.

13) Rigid gas permeable contact lenses have their advantages too. They help in controlling myopia in children. They provide sharper vision than soft contact lenses and are more durable. They are economical too. Rigid gas permeable lenses correct near sightedness, far sightedness and astigmatism. Hybrid contact lenses are a combination of Rigid Gas Permeable lens at the center, providing a clear and crisp vision and greater comfort.

14) Colored contact lenses can be used by teens who don't need to correct vision but want to enhance the eye focus or change the eye color. For those particular about ultimate convenience, daily disposable types of contact lens may be the best option.

15) Awesome facts about contacts are:

- Your switching over to contact lens can complement your features and correct your vision at the same time.

- You can accentuate your outfit while giving yourself extraordinarily clear vision.

- With cool colored contact lenses, you will surely be envied by your friends.

Imagine wearing a fresh pair of contact lens every morning, use them throughout the day and disposing of them at night. By this evening, you can have an appointment with the best eye care practitioner and start using contact lenses. I guarantee you will feel much better and look more beautiful.

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They correct vision with no distortion, but they are the least comfortable type of contact lens. In other cases, your doctor may recommend using reading glasses in combination with contact lenses that correct for distance vision. For those who are short-sighted a number of contact lens products are now available to restore sharp, clear distance vision. Patients who require correction to improve vision may wish or even need to wear contact lenses to maximize their vision.

Apart from cosmetic lenses, contact lenses allow normal vision for people with a wide range of medical conditions. Infants and young children often have various visual conditions that require a contact lens so that their vision system can develop normally. The main concern with implantable contact lenses is the risk of infection, a potentially serious condition that can lead to loss of vision. Soft contact lenses are available that will change the color of your eyes, even if you don't require vision correction. Correcting vision is not the only use for contact lenses.

Colored contact lenses are available with no vision correction, and an even more stylised version, called Halloween contact lenses, goes one step further. Nowadays almost all those who need vision correction and want to wear contact lenses can do so. Crazy Eyes novelty contact lenses are available both for those who need vision correction, and those who don%u2019t! High Myopia Patients with a high degree of nearsightedness are known to attain better vision with the use of contact lenses. The Contact Lens specialist will determine what your fee will be based on the type of lenses desired and your particular vision needs.

People who have chronic or recurrent infections or sores on the cornea cannot wear contact lenses. 1982: Bifocal daily wear soft contact lenses became available for commercial distribution. Unless you have been instructed otherwise, remove your contacts at night, even if you wear disposable lenses. Almost anyone with astigmatism can now wear contact lenses. But he isn't keen on forking out over Rs 1,000 for a pair of contact lens he may wear only once.

Centers for Disease Control and Prevention issued an alert to health-care professionals and patients who wear soft contact lenses of the risk. Following a thorough ophthalmic examination, a patient's potential for successful contact lens wear is objectively evaluated. editor Neil Fowler said: "Many people who wear long-life contact lenses may be paying over the odds. For some people who haven't been able to wear contacts and want to, implantable lenses may be an option.

Wear your contact lenses according to the schedule prescribed by your doctor. Toric lenses correct this problem just as well as wearing glasses does, and come as disposabls, extended wear and even colored contact lenses. Safe contact lens wear For most people, contact lens wear is safe and completely trouble free. There are also many practical advantages to contact lens wear for sports and recreational use.

http://www.laser-vision.info/contact-lens/

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Contact lenses are for those who wouldn't dream of spoiling their looks with glasses and who still need a seeing aide. Contact lenses are a very inexpensive option prescribed by most opticians for their clients. Although almost anyone can wear a contact lens, there are a few individuals whose eyes cannot adjust to contact lenses. It is recommended that a good eye doctor be consulted before you begin using contact lenses on your eyes.

Contact Lenses - To Wear Or Not To Wear
Contact lenses may have shown us the way out of the good "old" glasses, but it is highly recommended that contact lenses be used only after consulting an eye specialist or optician. Wearing contact lenses at all times may cause harm to your eye. Also it is important to know the right way to wear your contact lenses. Continuous wear is not advisable and there are ongoing debates about whether one can wear contact lenses to sleep. Still, contact lenses are quite the rage among office workers as well as those from the fashion world such as models and stars.

Colored Contact Lenses
Some of us have been endowed with uniquely colored eyes, while for some; colored eyes can enhance the attractiveness and charm of an individual. Colored contact lenses are available for those who would like the world to show a different side to them whenever they choose. Hazel, brown, blue, grey, green and even hard-to-find colors like purple or yellow is not unlikely colors for contact lenses worn by people in today's modern and fashionable world. Many contact lens manufacturers also make colored contact lenses to cater to this rapidly growing clientele of contact lens users.

Disposable Contact Lenses
Many manufacturers of contact lenses have come up with disposable contact lenses. These lenses can be thrown away after use and do not carry the risks of infection or other side effects of normal contact lenses. Disposable contact lenses may be an expensive option, but they have been in great demand for quite some time among those who are constantly traveling or are exposed to various hazardous substances. It is easier for them to throw away used contact lenses than to face infections or other eye-related problems because of unclean contact lenses.