Tag Archives: contact lenses

New Technology Improves Contact Lens Comfort

  contact lens comfort We often hear from eyeglass wearers “oh, I tried to wear contacts but they irritated my eyes”. The most common reason patients discontinue contact lens wear is because of poor comfort. Significant advances in contact lens materials have improved contact lens related irritation for many patients. If you have not tried contact lenses in the past 18 months you may be missing out on the potential benefits experienced by successful contact lens wearers.

With better contact lens materials, better contact lens solutions, and better lens designs almost all patients can wear contact lenses. Not all contact lens comfort issues; however, can be fixed with a different contact lens. Often addressing an underlying systemic condition such as dry eye syndrome will improve contact lens wear comfort and extend wearing time.

Now is a great time to give contact lenses another chance. Most of the major contact lens companies are offering rebates, some up to $100. If you would like to see if new contact lens technology can help you please call our office or use our online scheduler.

We look forward to helping you join the ranks of other successful contact lens wearers

Summer – A Great Time for Orthokeratology

I was asked what is the 60 second brief on OrthoK so here are my high points along with a video. 

Orthokeratology – or·tho·kera·tol·o·gy – a treatment for improving vision by altering the shape of the cornea through the application of corneal molds that are worn while you sleep.

Adult patients, kids, and parents alike express amazement at how we can alter or mold the shape of the cornea with a contact lens, resulting in clear vision during the day without the need for glasses. It’s not magic, the science is very well established and FDA approved.  We remold the cornea like what is done in LASIK. The difference is that Ortho-K achieves this without the use of a laser, it is reversible, and it is easily modifiable.

Check out the video below and see what patients are saying about Orthokeratology. If you want to know more about Orthokeratology call our office for a free consultation 817.416.0333 or visit www.OrthoKDoctor.com

 

Study Shows Orthokeratology Effective in Reducing the Progression of Nearsightedness in Children

The study of myopia control (nearsightedness) is a hot field of study, particularly in China where the High Myopia – Partial Reduction Orthokeratology (HM-PRO) study was conducted. This study is the latest in an effort to find an effective means to slow or even stop the progression of nearsightedness in children. The HM-PRO study is unique in that it treated 18 highly myopic children (Rx over -5.75 D) between the ages of 8 and 11 with a combination of OrthoK lenses and glasses, and followed them for two years. The study participants were matched with a control group of 18 children, the same age and also with prescriptions over -5.75D.

In the HM-PRO study 18 participants and 18 control patients were followed for 2 years. 15 of the treatment patients and 13 control patients completed the study.  After two years the treated patient’s nearsightedness increased by – 0.13D and the untreated (control) patients increased their nearsightedness by -1.00D.

Myopic progression is also measured by how much the eye grows in length (called the axial length). In this case the treated patients showed a significant reduction in progression with their axial length increasing by 0.19 mm whereas the control group’s axial length increased by 0.51 mm.

The study authors concluded that orthokeratology lenses slowed axial length elongation by 63% and reduced the prescription change by 87%. It has yet to be shown that orthokeratology lenses stop the myopic progression clearly this study, like numerous other before it, show that orthokeratology is effective in markedly slowing the progression of nearsightedness in children. At Total Eye Care we have been using reverse curve orthokeratology lenses to control myopia since 1999 and have fit hundreds of kids and adults.

Scleral Lenses – An Old Dog With New Tricks

Eye with keratoconusScleral lenses have been around for over 100 years. Until the new gas permeable lens materials were developed patients could only wear scleral lenses for a few hours a day. With the highly oxygen permeable lens materials now in use, patients can comfortably wear these lenses all day. Scleral lenses are most commonly used to treat eyes with irregular corneas such as keratoconus and post surgical eyes (usually following corneal transplant surgery or related to complications from refractive surgery). Another common use for scleral lenses is in the special effects industry where they are used to protect the cornea and/or to give the eye an exotic appearance.

What Is A Scleral Lens?

Scleral lenses are large contact lenses that rest on the sclera (white part of the eye) with the remainder of the lens vaulting over the cornea. Tears are trapped between the lens and the cornea allowing sclerals to treat irregular corneas. The average soft contact lens has a diameter of about 14 mm whereas scleral lenses typically have a diameter exceeding 14.5 mm. 

How Are Scleral Lenses used?

At Total Eye Care Dr. Driscoll has  used scleral lenses to treat many conditions such as irregular astigmatism, keratoconus, high myopia, dry eye syndrome, and complications related to LASIK and PRK. Because of their size, sclerals are quite comfortable. Patients often report the comfort being similar to that of a soft contact lens. Most patients with irregular corneas will see better with a scleral lens than with glasses. 

Below is a good video that shows how scleral lenses are cared for and how to insert and remove them.

Contact Lens Travel Suggestions

With Summer upon us a common question in the office is “what is the best way to travel with contact lenses.”

Daily disposable contact lenses are easily the most convenient travel option. With daily disposables all you have to worry about are lenses, no extra contact lens solutions are needed. Now, there are many new, convenient options available for daily disposable contact lens wearers. Numerous contact lens companies now make daily disposable contacts in both toric, spherical and bifocal versions. With the expanded parameters now available, over 80% of contact lens wearers can now find a daily disposable contact lens that will fulfill their needs.

The biggest hassle for traveling contact lens wearers is how to transport the contact lens cleaners and solutions. After all, the TSA limits each bottle of liquid, aerosol, or gel to 3.4oz (100 ml) or less and all of the bottles in your carry-on luggage must fit into a clear, 1 qt. zip lock bag. There are exceptions; however, for prescription, OTC medications, and people with special needs. You are not limited in the amount or volume however if an item is over 3.4 oz or it is not in a 1 qt. zip lock bag then you must declare it.

Safe travels

Rub and Rinse Contact Lens Cleaning Method Shown to be More Effective Than No Rub Technique

A study out of Australia has confirmed what eye doctors have long suspected. Rubbing your contact lenses and briefly rinsing them prior to overnight storage and disinfection is more effective at removing bacteria from the lens surface than merely placing the contacts in the case (no rub technique). Numerous multipurpose no rub contact lens solutions have been approved by the FDA  and shown to be an effective method of disinfecting contact lenses however this study shows that applying a few drops of the multipurpose solution, rubbing and then rinsing the lenses is much more effect at removing bacteria from the lens surface.

This study was done “in-vitro” meaning that it was a lab study where patients did not actually wear these lenses but the lenses were seeded with bacteria and then after the lenses were cleaned and disinfected the lenses were then testing to see how much bacteria was removed.

So the moral of the story is after removing your soft contact lenses add a few drops of the multipurpose contact lens solution, rub both sides of the lens then rinse the lens and place it in the case to disinfect overnight.

Reference Data: Zhu H, Bandara MB, Vijay AK, Masoudi S, Wu D, Willcox MD. Importance of rub and rinse in use of multipurpose contact lens solution. Optom Vis Sci. 2011 Aug;88(8):967-72.

Keratoconus – New Options for Patients

Due to the fact that one of the specialties at Total Eye Care is keratoconus we see many patients with this condition.  We recently updated our patient information on keratoconus page to reflect some of the new technologies available to our patients such as;

  • Mini scleral lenses, which provide excellent vision like that of traditionally fit gas permeable lenses, however with markedly improved comfort.
  • Corneal collagen cross linking, though not yet FDA approved, is a new technology that I expect will be of a tremendous benefit to our patients.

FDA Study Cites Contact Lenses as Leading Cause of Medical Device Related Emergency Room Visits

During a 24 month study of 100 hospitals contact lenses accounted for 23% of
medical device related emergency room visits involving children.

In a study published online this week in the journal Pediatrics entitled “Emergency Department Visits for Medical Device-Associated Adverse Events Among Children” it was found that 23% of the medical device related emergency room visits involving  children from birth to 21 years of age were contact lens related, this is in contrast to the next closest category,  injuries due to a puncture by a hypodermic needle, which placed a distant second at 8%.   An additional noteworthy finding was that an another 6% of the ER visits  involved lacerations caused by eyeglasses.

The study did not outline how the children were using their contact lenses.  Were they caring for and cleaning them properly?  Did they discard the lenses according to the replacement interval prescribed by their doctor and what type of contact lenses were involved in the study?  The injuries incurred while wearing eyeglasses did not specify the type of activity the child was participating in when the incident occurred.

Contact lenses are medical devices and as such require a prescription from an eye doctor with professional fitting and followup. In clinical practice we have found that patients that follow the guidelines below rarely experience contact lens related complications.

Injuries due to eyeglass lenses and frames was also a significant source of injuries in the study. We must therefore, not forget to provide our children with protective eyewear when they participate in sports.  Sports eyewear has come a long way since the days when Kareem Abdul-Jabbar captured his trademark look.  Sports eyewear has now become fashionable and safe.

More information on contact lenses.

Total Eye Care and Bausch + Lomb Announce Back to School Contact Lens Program

From July through September, Total Eye Care is partnering with Bausch + Lomb to raise awareness about the benefits of daily disposable contact lenses for children.

As parents prepare to send their children back to school, it’s important to make sure that our children are getting proper vision care for optimal performance in and out of the classroom.

“Daily disposable contact lenses are easily the safest and most convenient contact lens option.  Now through our partnership with Bausch + Lomb, we hope that more children and adults will experience the convenience and safety of daily disposable contact lenses” says Dr. Richard Driscoll of Total Eye Care in Colleyville.

Through our partnership we will be able to offer a 90 pack of daily disposable contact lenses for only $35.

How are Soft Contact Lenses Made?

Have you ever wondered how soft contact lenses are made?  We found this Discovery Channel video from the show How Do they do it? showing how custom soft contact lenses are made.   [youtube=http://www.youtube.com/watch?v=AXRGRyqSRao]