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The information included in this page is intended to be a helpful guide to wearers of all types of contact lenses.
No advertisement is contemplated by this information and no recommendation is intended.


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Some preliminaries before going into details
Hard contact lenses, made from PMMA (PolyMethylMethAcrylate), are still in use today. Decreasing in market portion, they are out-of-date since the lens polymer does not permit oxygen to penetrate through the lens to the cornea. The present hard contact lens market is estimated to be 2% in the U.S., and 5% to 7% in Europe. So, forget about your 1957 Chevy!

Rigid Gas Permeable (RGP)
This contact lens is made of a polymer that allow the oxygen to penetrate the contact lens to the cornea. This improve corneal health. RGP contact lenses provide clear visual acuity, handles comfortable and are very easy to look after. They are supplied for both daily wear and extended wear. If you have a cornea irregularity of any kind or want to save money in contact lens solutions and replacements, RGP lenses are the contact lens option. RGP contact lenses can be pre-manufactured and sell from stock lenses in various sizes and power ranges, but it is strongly recommended to be made to order. The majority of Rigid Gas Permeable lenses sold in the U.S. are made to order (form scratch) ,by approximately 200 independent contact lens laboratories across the nation The allowed oxygen to the contact lens is measured in Dk units. this Dk (Central Transmissibility) may vary with manufacturing thickness. Stability, and optical clarity are also good factors for this contact lenses. The RGP materials has equal of approximately 10 to 100 Dk values today, so said the brand name companies. Advised....Your eye care professional can tell you what is best for you after examining your eyes. Since they do not uphold bacterial growth, they are superior to soft contact lenses; plus their durability make them the lens of choice today. It is recommendable to look for an eye care professional who can relay to this contact lenses with experience and has the ability to make some adjustment to the contact lenses if necessary. This contact lenses can be a little more in price at the original fitting time, but you will be more satisfied in years to come and will save money and problems related to contact lenses. The market in the U.S. for this contact lens is from 12% to 18%, but it is increasing fast and more training and class are available for the eye care professional every day. In Europe is about 40%.
Soft Contact Lenses
The soft contact lens, also called hydrophilic lens, accounts for the 80%+ of the market in the U.S. and 50% in Europe. They are over 300 brands in the U.S. today. Even with the overwhelm advertisement and the easy fitting techniques (Almost none), the lens is loosing ground in the market because the problem with corneal infection and the none compliance of many patient. Looking for less expensive lenses and solution, the infections can be seen daily in ophthalmology office around the country. The Average of solutions a year run in $200 to $300.
Soft contact lenses are used in daily wear and extended wear. Most people can adapt to soft lenses almost immediately. But be aware, even if the lenses feel comfortable, you must have the eye care practitioner's Supervision to make sure of no complication. Vision with soft contact lenses are not as clear as rigid contact lenses and if you're wearing bifocal soft lenses, it may take a few weeks to get used to seeing with them.
The soft contact lenses must be carefully disinfected by the user on a daily basis (My private recommendation is low water and sterilize). These lenses are also very fragile, wear out usually within two years, and if your lenses quality are in question you may need to replace them before the year ends. Soft lenses are normally made in stock sizes and the manufacturing specification may vary some times from the vials specs. Because of their flexibility, they can accommodate various shapes of corneas anyway. Therefore, it is not essential that a soft lens wearer have the lenses made to order. Eye care professional follow-up with soft contact lenses are more urgent than rigid lenses, and if your eye are red, remove your lenses fast.

Extended Wear soft contact lenses (Any type)
So, you are the vagrant type. Do you sleep with your shoes too? I bet you have never check the oil in your car. The cornea needs oxygen to stay healthy and it relies on outside oxygen. When you wear a contact lens on your cornea it is surrounded by your tears that immediately begin to coat the lens with proteins and clog the pores. You also have calcium and lipids that do the same action. Recommending overnight use of any contact lenses can be a risk of infection and a lack of oxygen for your cornea. Take your shoes off before going to bed.
Soft Disposable Contact Lenses
Listen. I have been designing fine china (Contact lenses) for the past 28 years. Don't ask me to give you a lecture about paper plates. We only can said this.... MONEY, MONEY, MONEY.
The weekly disposable contact lenses at $3.50 a lens X 2 X 26 weeks + lost and broken lenses (25 a year). You tell me. How much?
The one day disposable contact lenses at $1.25 a lens X 2 X 365 days + lost and broken lenses (25 a year). You tell me. How much?
Are you going to use the disposable contact lenses the way you should?
Forget it. I know what you are thinking, and I am not going to be part of the none compliance consumer.
Bifocal and Progressive Contact Lenses ( Technical Information )
Yes, this contact lenses are available in the market and in good success ratio. Today, you have over 10 designs available in soft contact lenses and 20 or more in RGP to make a choice from. Make sure your eye care professional has a good background and experience in bifocal contact lenses. Ask for some type of guarantee before you try them, this contact lenses can run into some money during fitting procedure. This is not the so call MONOFIT contact lens (One eye used for reading and one eye used for distance). Bifocal contact lenses are what they indicate to be. Distance vision with both eyes and reading vision with both eyes. Check on the replacement and second pair price, and try RGPs if you can, they last longer and they have crisp vision.

For More Information Contact:
Lens Consultants, Inc.
FAX: (786) 289-0381
E-Mail to: info@lensconsultants.com


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