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
Pattern Electroretinography (PERG) Gives up to 8 Years of Advanced Warning
Incorporating the most advanced technology available in caring for our patients is important to the way we practice at Total Eye Care. The Diopsys® Pattern Electroretinograph is the newest addition to our suite of technology. The Pattern ERG (PERG) measures the signal strength of the retinal information being sent to the optic nerve. Studies show that a 10% decrease in this signal can be detected up to 8 years earlier than a 10% loss of nerve fibers detected by the scanning laser ophthalmoscope or optical coherence tomographer, thus allowing for a much earlier diagnosis and treatment.
Early detection and treatment of glaucoma is important due to the fact that nerve tissue cannot be regenerated. Twenty years ago, in the absence of a very high intra-ocular pressure, it was a common practice to wait until a visual field defect was present before initiating treatment. There is a significant amount of redundancy in the retinal nerve fibers, thus studies have shown that a patient must lose approximately 50% of the nerve fibers serving a given section before the loss of nerve fibers result in a detectable visual field defect. The scanning laser ophthalmoscopes changed all of that allowing us to detect earlier, more subtle changes in the retinal nerve fiber layer. Now patients are treated before visual field defects become apparent.
The Diopsys® Pattern Electroretinograph is the next step in early detection. The PERG will not replace the scanning laser ophthalmoscopes such as the Zeiss Cirrus Optical Coherence Tomographer (OCT) in the diagnosis of glaucoma; however, it gives us another valuable tool in the diagnosis and treatment of glaucoma.
Allows you to see clearly all day – some patients experience more than 1 day of clear vision after 1 night of wear
Available for both children and adults
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
Comments Off on Summer – A Great Time for Orthokeratology
Pink eye is a descriptive term indicating that the eye is inflamed for some reason. Not all pink eyes are infected or contagious. “Pink” eye is usually caused by a virus (often quite contagious), allergies, or bacteria. The most common cause of pink eye is a viral infection or allergies. Patients with pink eye should not wear contact lenses. Read more…..
Posted onJuly 26, 2013|Comments Off on New Drug For Dry Eye Treatment
Bausch & Lomb announced it has acquired the rights to market a new medication for the treatment of dry eye syndrome. This, yet to be named, medication will improve the quality of tears by promoting the eye’s ability to produce mucin, an essential component of our tears, that is responsible for prolonging the evaporation time.
This medication will be the first of it’s class and the first to focus on improving tear quality instead of quantity. Dosing will be twice a day. Phase 3 clinical trials are to begin by the end of 2013.
While a few years from clinical use this compound will provide a new approach to the treatment of dry eye syndrome..
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 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.
Computer glasses are an under used component of a comfortable office environment. As a person approaches their 50’s it becomes more difficult to see things not only at near but at an intermediate range as well. Normal progressive lenses let you see objects clearly at this distance but only by lifting your head up to look through the intermediate portion of the glasses. Using regular glasses while working at the computer leads to neck pain, back pain and eye strain. This is where computer glasses come in.
Progressive lenses allow a person over 40 to view objects clearly at all distances, even computer distance. Progressive lenses let us view intermediate objects by looking half way down the lens. With computer glasses; however, you can view an intermediate object by looking straight ahead (most computer monitors are at eye level), and the bottom of the computer lens lets you focus an object at normal reading distance. Computer glasses allow for a natural eye position so you can comfortably view your computer.
If your computer monitor is at eye level, you are in your late forties or older, and spend more than 30 minutes at the computer a day then computer glasses are definitely a worthwhile investment.
Computer glasses are an important part of making your workstation a comfortable place to work. See this article on visual ergonomics for more information on setting up your workstation.
The FDA approved Second Sight’s “bionic” eye. While actually more of a retinal prosthesis, the implant is designed to assist patients with retinitis pigmentosa. The Argus II Retinal Prosthesis System has a resolution of 60 pixels. The device will not provide the HD type of vision that our eyes are capable of; however, more importantly, this technology will greatly aid a blind patient’s mobility and is a revolutionary step forward.
The system consists of a wireless retinal implant that rests on the retina. The patient will wear special glasses that see the image. The image will be sent to a visual processing unit that is worn on the patient’s hip. Once the data is processed it is sent back to the glasses which wirelessly transmit this data to the retinal implant. The implant electrically stimulates the photoreceptors simulating a coarse image. The patient learns how to interpret these light and dark images allowing them to navigate around and among obstacles.
The device was approved for use in Europe last year. Check out the video below from the European branch of the medical device company.