7800 SW 87 Ave Suite B-270 Miami, FL 33173 305-271-8206

Why are Specialty Lenses so hard to get right? Dr. Boshnick explains about Specialty Lenses.

Over the past 25 years, a number of gas permeable and soft specialty lens designs have been developed to address
an large number of eye conditions. These conditions include:

Keratoconus and Pellucid Marginal Degeneration.
Corneal transplant surgery
Chronic dry eye due to disease, medications, chemo and radiation therapies, surgery and trauma.
Corneal dystrophies and degenerations including Fuchs’ Dystrophy and Stevens-Johnson Syndrome.
Chronic eye pain due to refractive eye surgeries including LASIK, R-K and PRK.
Post-LASIK complications such as post-LASIK ectasia.
Post Radial Keratotomy complications such as distorted and blurred vision, fluctuating vision and ocular pain.
Corneal and intraocular defects due to ocular trauma and eye surgery.
Congenital ocular defects such as Peters’ Anomaly and Cicatricial Pemphigoid
Color Blindness

In my opinion, the most important ophthalmic device that address the many eye issues facing millions of patients in the U.S. and elsewhere is the gas permeable scleral lens. Very rarely does a medical device come along that has the ability to change a person’s life. Scleral lenses are made from a highly oxygen permeable material that does not touch the injured or diseased cornea. A well fit scleral lens will vault over the compromised cornea and come to rest on the white portion of the eye known as the sclera. A liquid reservoir exists between the back surface of the lens and the front surface of the cornea. In other words, the compromised cornea is always in a liquid environment. Vision and comfort is almost always excellent.

After having used these very unique lenses on several thousand patients suffering from a multitude of of eye conditions, I named this lens after the “Global Vision Rehabiltiation Center” hence the name “GVR Scleral lens” which has been registered with the U.S. Patent Office. Our practice uses a unique technology known as “Ocular Surface Tomography” and proprietary software designed by Zeiss Optical which allows us to create our GVR Scleral lens with the proper diameter and curvature needed for each individual eye.

This technology permits us to determine within microns the necessary clearance required to vault over the cornea.

The GVR Scleral lens is in fact a medical and therapeutic device that can be fitted to virtually any eye shape and for any degree of visual error while allowing the diseased or injured eye to heal. Because of the specialized equipment needed to fit these lenses, the large amount time required over weeks or months to achieve the optimum fit and the steep leaning curve required of doctors to develop expertise, very few doctors are willing to get involved with scleral lens technology. It also must be appreciated that over a period of several weeks or months,
depending on the complexity of the eye and the condition of the ocular surface, several changes to the lens parameters may be needed.

This will require additional lens changes to be made.

Our scleral lens designs are unique for each individual eye because no two eyes are the same and no two patients have exactly the same vision and ocular issues. Our goals with these unique lenses are:

1. To eliminate blurred and distorted vision resulting in restored ocular comfort once again.
2. To promote and restore healing to the compromised irregular cornea and adjacent ocular tissues.
3. To protect the compromised cornea from the environment and the rubbing action of the eyelids against the irritated cornea.
4. To eliminate the need for corneal transplant surgery which has the potential for serious complications,
a long healing period and an uncertain vision outcome.

The following images will help explain the part scleral lens play in the rehabilitation of the compromised eye:

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