Rigid Gas Permeable Contact Lenses Help Improve Topographic Values after Cross-linking

gas permeable contact lensesThe rigid gas permeable contact lenses was proven to help improved topographic parameters right after cross-linking in order to stabilize progressive keratoconus.

Such study was done by comparing 15 eyes that do not have any contact lenses on to 12 eyes that were fitted with contact lenses for one to ten weeks right after surgery. The outcome has resulted to the change of baseline in the best corrected visual acuity, refractive sphere and cylinder, keratometry and astigmatism values, as well as inferior-superior (I-S) value on EyeSys and a maximal keratometry value on the Pentacam (Oculus). Such measurements were done right before the surgery took place and was done at three 6-month intervals right after the surgery.

The Result of the Study on Cross-linking the rigid gas permeable contact lenses


There were no significant changes to the study parameters all throughout the duration of follow-ups on the group that did not receive the rigid gas permeable contact lenses. However, on the other group that received the contact lenses right after surgery, a considerable improvement were observed at follow-up intervals for I-S values and maximal keratometry values, at 6 and 12 months for refractive power steep as well as simulated astigmatism values, and at 12 months for the refractive power flat values.

The author of the study admitted that the observation was done in only a small series of patients. However, the group believed that they have succeeded in giving a more balanced view when it comes to the efficacy of the current cross-linking technique, while documenting the influence of fitting contact lenses right after cross-linking on topographic outcome parameters.


The Dangers of Wearing Cosmetic Colour Contact Lenses

Colour Contact LensesCosmetic Colour Contact Lenses can greatly enhance your overall look, giving you a cool effect, a perfect pair to your Halloween costume. But do you know that wearing non prescription contact lenses can cause permanent damage to your eyes, especially if you are not careful?

Non Prescription Colour Contact Lenses Can Be Easily Bought Online

Cosmetic contact lenses can now be easily bought online. With fancy names like fire, flower and dark elf, it is easy to be mesmerized by these eye popping Colour Contact Lenses that cost nearly $500. But according to FDA, it’s against the law to sell cosmetic contact lenses without a valid prescription or note from an eye care professional. This is because, if contact lenses are not used properly, the lenses can do much more harm than good to your eyes.

According to Dr. Irene Cherfas, an ophthalmologist, “The infections we sometimes see with them are devastating, and can cause permanent scarring of the eyes, which can lead to blindness and sometimes require corneal transplants.”

Handle Your Contact Lenses Properly

But is the law implemented by FDA about buying contact lenses really effective? There are still a lot of people who are buying non prescription contact lenses, and even from sidewalk vendors for as little as 5 or 10 dollars, only, with no questions asked.

To avoid problems, make sure to get a full eye examination before you buy any types of contact lenses. Also, always make sure to wash your hands when handling the contact lenses. And more importantly, take them out during bedtime and do not ever share them with your friends.

Crazy Contact Lenses Get Blinding Health Warning

Crazy Contact LensesMonster-inspired Crazy Contact Lenses that are being used to complete an overall Halloween costumes are widely sold all over the Internet, as well as on some novelty shops. However, three ophthalmology groups have warned consumers about the danger of wearing these cosmetic contact lenses.

Wearing Non-prescription Crazy Contact Lenses Is Dangerous

Pairing your Halloween costume with blood drenched contact lenses is a cool and trendy option. But some people are not aware about the consequences that these contact lenses could pose to your eye condition. The American Academy of Ophthalmology, American Association for Pediatric Ophthalmology and Strabismus, as well as the Contact Lens Association of Ophthalmologists has joined hands in issuing a warning against the use of low cost Crazy Contact Lenses for Halloween.

Obtaining these decorative contact lenses, including coloured contact lenses without a prescription is dangerous. A lot of websites would often advertise such decorative contacts as if they were fashion accessories or cosmetics that come with whimsical packaging and names like Dolly Eyes, which targets teens and young adults. The group issued an advice to parents on educating their teens about the correct procedure of purchasing any form of contact lenses online. They encourage patients to undergo thorough eye examination and obtain a prescription from a licensed optometrist before buying a pair of contact lens, in order to avoid any serious eye disorders and infections, which could even lead to blindness.

Obtaining All Kinds of Contact Lenses Must Come With Valid Prescription

The organization stressed that all contact lenses are considered as medical devices, and therefore, obtaining these eyewear requires a valid prescription and proper fitting from a doctor. Even though a person has a perfect vision, they are still highly encouraged to undergo thorough eye examination and get a valid prescription from an eye care professional, before they could wear any kinds of contact lenses, especially crazy contact lenses.

Torn Corneas and Vision Problems Lead to Stealth Recall of Toric Contact Lenses

Toric Contact LensesThe Federal Health Officials threatened to issue public warning against the Toric Contact Lenses that were recalled by Copper Vision Inc. and were widely being sold at Walmart, Costco and LensCrafters. This was announced after increasing details of eye problems ranging from blurry vision to torn corneas were reported by users of such contact lenses.

Avaira Toric Contact Lenses Caused Hazy Vision and Discomfort

The Federal Food and Drug Administration have been notified about the problems caused by Avaira Toric contact lenses, which were recalled quietly by Copper Vision in August. The company said that there are about 600,000 of these contact lenses sold in the United States that were recalled.

At least a dozen consumers complained about impaired vision and excruciating pain after wearing the contact lenses which was first launched in April. What frustrates the consumers is the fact that CopperVision has not been so vocal about it.

Last August 19, CooperVision Inc. officials has issued a voluntary U.S. recall of what they call as “a limited number of lots” in the US market, and notified FDA of the recall on August 25. The company further said that they have decided to initiate the recall after thorough investigation of the Toric Contact Lenses which leads to “a small number of unexpected wearer reports of hazy vision and discomfort.”

A Recall Notification Was Issued to Customers About the Defective Contact Lenses

A lot of contact lens retailers said that they notified their customers immediately about the danger of wearing Avaira Toric. In Costco, there are about 2,600 customers that were notified about the recall, this was according to Craig Wilson, the company’s vice president for food safety and quality assurance. Wal-Mart also confirmed that they have notified its optical departments on Aug. 24, according to Dianna Gee. And LensCrafters also admitted that they notified their customers about the recall immediately.

These moves have followed a wider international notification about the defective Toric contact lenses, including those in Hong Kong, Australia and Spain, where the public notice has included a list of more than 200 affected lots of contact lenses. The Hong Kong notice also indicates that Avaira Toric lenses were also recalled in the countries of Canada, Germany, and Italy.

The American Optometric Association Launched a Website Dedicated to Educate the Public on the Proper Care and Maintenance of Daily Contact Lenses

Daily Contact LensesMore and more people are now wearing Daily Contact Lenses, either for vision correction purposes or for cosmetic purposes. And because of this, the American Optometric Association (AOA) launched a website, www.ContactLensSafety.org, in order to address all consumer queries about the proper handling of all types of contact lenses, especially the Daily Contact Lenses. The organizations behind this are the AOA Contact Lens and the Cornea Section (CLCS) with the help of the American Academy of Optometry (AAO).

ContactLensSafety.org is aimed at Providing Information on the Proper Handling of Daily Contact Lenses

To date, there are more than 30 million Americans who wear contact lenses to correct their vision problems, and the organization believed that there is now a need to put up a website that could answer all queries about contact lenses, that is available 24 hours. The website has been created in order to answer all questions regarding contact lens safety.

There is a wide range of information that can be found on the website, and it also covers topics about the proper contact lens replacement schedules, including tips on purchasing contact lenses form various retailers. There’s also an “Ask the Expert” section, wherein consumers could send their contact lens questions to a panel of experts who will reply as soon as possible.

But the AOA cautions that the site will only provide information about daily contact lenses safety and they still encourage patients to see an optometrist for a comprehensive eye examination.

All About the American Optometric Association

The American Optometric Association (AOA) is a group of doctors of optometry that are highly qualified and trained on the frontline of eye and vision care. The group examines, diagnose and treat all kinds of illnesses relating to the eyes. And aside from providing eye and vision care, the group plays a major role in the patient’s overall health detecting any diseases such as diabetes and hypertension that is a result of an eye condition.



Contact lens solutionContact lens solution is divided into two main groups – the all-in-one multipurpose solution and peroxide based disinfection system. Each has their own advantages and disadvantages.

Difference of Multipurpose Solution to Peroxide Based Disinfection System

Multipurpose solutions are considered as the mainstay of modern contact lens cleaning solutions because of their ease of use. The active ingredients found on these cleaning solutions do not only clean the contact lenses entirely, but it is also good at soaking and disinfecting the lenses. But if you are someone whose eyes are very sensitive to the preservatives that are found on multipurpose solutions, then the peroxide based systems is more suitable for you. Peroxide based disinfection cleaning solution makes use of hydrogen peroxide in disinfecting the contact lenses and therefore, they have a higher cleaning efficiency as compared to the multipurpose contact lens solutions when it comes to disinfecting the contact lenses.

Disinfecting Contact Lenses By the Use of Contact lens solution Is Very Important

Disinfecting your contact lenses by means of a Contact lens solution is a healthier alternative. This was according to Mark Adams, an optician at an online contact lens retailer store. He added that this routine is often neglected, and what’s worst is that some contact lens wearers would tend to re-use the same solution over and over again. Others do not even disinfect their contact lenses at all, and what they would do instead, is to make use of Saline in cleaning. This should not be the case, and according to Mr. Adams, re-using contact lenses solution is a complete no-no, and the practice of using Saline is highly discouraged for this can be a breeding ground for bacteria like Acanthamoeba, Pseudomonas, and many more. He stressed the importance of using fresh solution in disinfecting contact lenses at all times, while the minimum soaking time should be six hour, in order to achieve maximum disinfection.

Some Facts about Therapeutic Contacts

Therapeutic ContactsTherapeutic Contacts are also known as bandage lenses, a special type of contact lens that is worn for therapeutic reasons, such as the treatment of corneal eye diseases, and many more. Although therapeutic contact lenses are used primarily to correct refractive errors, in some cases, the lenses are being used to enhance the delivery of drug treatment to the cornea. Basically, a pair of Therapeutic Contacts is used for physical therapeutic, eye protection as well as an aid in healing an infected eye.

Main Purpose of Therapeutic Contact Lens

Therapeutic contacts are very useful for post-surgical treatment of patients because surgery of the cornea and other ocular structures would require a healing period to allow time for the growth of cells in the eye, and for adhesion. They work as an aid to the healing process by protecting the new corneal cells from the blinking eyelids. This is done in order for the cellular adhesion and tissue relationships to develop normally. Since therapeutic lenses provide a smooth interface between the cornea and the lids, they can also help to protect the lids from any forms of eye irritation.

Materials Used for Therapeutic Contacts

The main materials used in producing therapeutic contact lenses are hydro gel, silicone elastomers, collagen, and gas permeable (GP) polymers. Hydro gel-made lenses are the type of lenses that have large diameter bandages that could cover-up the entire cornea, and their soft, supple nature contributes to enhance the comfort that is experienced by the wearer comfort.

Silicone hydro gel lenses are therapeutic lenses that are made from materials that are high oxygen permeability. These lenses have been in the market since 1998 and are approved for therapeutic use in both Europe and in the United States. These lenses provide excellent comfort and offer the practitioner the opportunity to fit a therapeutic contacts that has very high oxygen transmissibility.

When to Wear a Pair of Medical Contacts?

Medical ContactsThe Medical Contacts are contact lenses that are used for medical and therapeutic purposes in order to aid any complications or illnesses relating to the wearing of contact lens.

There are times where a patient needs a special kind of lenses for medical purposes, after an eye surgery is done of if the vision cannot be improved even after a surgery is conducted to the patient.

Why Wear A Pair of Medical Contacts?

  • Medical Contacts are worn when there are scarring involved in the cornea. Examples of these conditions are keratoconus, corneal trauma, corneal graft surgery, and during corneal infections.
  • A pair of medical contact lens is also needed during a complex spectacle prescription, either for short or long-sightedness, high astigmatism or anisometropia, a condition where there is a large difference in the degrees in between two eyes.

Therapeutic indications

The Medical contacts are also used to treat various conditions, and examples are:

  • For pain relief to patients where the cornea is swelling, also known as “bullous keratopathy”. These lenses are also prescribed during corneal abrasions, epithelial defects and other post-surgical conditions
  • During the enhancement of corneal wound healing, which usually happens on post-surgical conditions, like after a corneal transplantation procedure, post LASIK surgery and in persistent epithelial defects.

Prosthetic Medical Contacts are also available for eyes that are unsightly, due to an accident or injury.  Soft lenses and rigid gas permeable (RGP) lenses are the most common types of medical contact lenses. Each of these lenses has specific indications as well as specific care and maintenance procedures.

Ontario MP Pushes the Regulation of Cosmetic Coloured Contacts

Coloured ContactsThe Members of the Parliament of Ontario have pushed a bill concerning the regulation of cosmetic Coloured Contacts. They feel the need to do this in order to protect consumers from eye infection that results from buying non-prescription Coloured Contacts for cosmetic purposes.

Cosmetic Coloured Contacts Will Be Reclassified as a Medical Device

Pat Davidson is the author of the bill, where he introduced in the House of Commons the close regulatory loopholes for unsafe non-corrective cosmetic contacts and is expected to be debated this month. The idea behind this bill is to reclassify cosmetic coloured contacts as a kind of medical device. If such bill is successful, Canada’s medical devices regulations will be updated. If regulated, companies involved in the manufacturing of non-prescription contact lenses will need to obtain licensed from Health Canada.

The Need to Push Through With the Bill

MPs from all parties including former health minister Tony Clement support Davidson’s attempt to update Canada’s medical devices regulations. Similar motion was passed with unanimous, all-party support in the House of Commons last March 2008, but such legislation did not become law because of the federal election.

Davidson was quoted as saying, “Many Canadians use non-corrective, cosmetic contact lenses these days for various social activities. A lot of us are familiar with coloured contacts that look like cat eyes or vampire eyes, which are being sold on various department stores worldwide, all of which are being used by Canadian consumers with little to no regard on the potential hazard that they are causing to their eyes.”

Lillian Linton, the president of the Canadian Association of Optometrists, has urged the parliamentarians to push through with the bill and act out on it with haste.

A Large Number of Online Shopper for Discount Contact Lenses Has Greatly Increased

Discount Contact Lenses“It’s unfortunate to know that a lot of people do not realize that some online companies that sell discount contact lenses do not really care about your eye’s health when they sell this cheap eyewear to you.“ this statement was from Dr. Lil Linton, an optometrist based in Perth-Andover and the president of the Canadian Association of Optometrists.

The Campaign against Buying Cheap Eyewear Online

Because of the increasing number of people buying Discount Contact Lenses from online sellers that are not reliable, Dr. Linton and his team have decided to launch a campaign to warn people against the danger of buying cheap eye contacts and eye glasses online. Buying online could pose high risk to your eyes, because the eyewear that you’ve bought might cause eye infections and other serious eye conditions.

It has been alarming to know that more and more people in New Brunswick would turn to their computers when buying eye contacts, instead of calling their eye doctors or opticians.

Why Do People Choose to Buy Discount Contact Lenses Online?

Rose Leblanc, a resident of Metro Moncton said, “It only took me two weeks to wait for the contact lenses I ordered online to arrive at my door.” She added that, “For a cheap price, I can get glasses at a fraction of the cost, cheap enough that I can get more than one pair and it’s still a lot less than half the price I would have paid when buying from an actual retail store.”

You might not realize early on the danger that these lenses could give you, but in the long run, you will eventually feel that such discount contact lenses will hurt your eyes, especially if you wear it longer.

Always remember that the correct way of buying a pair of contact lenses is to see your doctor who will then undergo some eye examinations to determine which type of contact lens is more suitable for you. Your doctor will then give you a prescription which you need to present to reputable contact lens sellers.