Many patients around the world suffer vision loss due to corneal disease, ocular trauma, corneal transplant surgery and refractive surgical procedures such as LASIK. Many of eyes that we see have very distorted and irregular ocular surfaces. Almost all of these patients due very well with scleral lenses. However, a few of the eyes
that we see have ocular surfaces that so distorted that conventionally designed scleral lenses will not fit these eyes. In cases like these we use a new scleral lens technology
known as the Eye Print Pro. This technology involves taking an impression of the ocular surface of the patient’s eye. This procedure is painless and lasts just a few minutes.
The impression taken is sent to a special laboratory where 3-D printing technology is used to make a lens where every defect or “hill and valley” of the ocular surface
is replicated onto the back surface of the Eye Print Pro Scleral lens. Comfort and vision are almost always excellent.

The photo below is of an Eye Print Pro Scleral lens on an eye that suffered 2 separate retinal detachments within a 4 month period requiring 2 separate vitrectomy surgeries (surgeries to remove the interior “gel” within the eye known as the vitreous and replacing it with saline). In addition, cataract surgery was done after the first vitrectomy. Several months later, the intra-ocular lens dislodged into the posterior chamber of this eye requiring emergency surgery. For this reason, a 2nd vitrectomy was done along with a retinal surgical repair procedure known as a scleral buckle. Eye Print Pro Scleral lens technology allows us to make a lens from an impression of the front surface of the eye. A very gentle impression material known as Polyvinyl Siloxane is placed on a plastic holder which is then placed on the front surface of the eye and under the eye lids. After a few minutes, the plastic holder with the eye mold is removed and sent to our laboratory where a scleral lens matching the exact contour of the cornea and the white portion of the eye is made. This technology is designed to help patients whose ocular surfaces have been extremely altered due to disease and surgery see clearly once again. In the case of the eye shown in this photo, without the Eye Print Pro, the vision in this eye is less than 20/800. With the Eye Print Pro lens this eye is corrected to 20/20 vision without any distortions. The 2nd photo shows how the impression material appears on the eye. The procedure is fast and painless.

EyePrintPro technology creates a scleral lens based on a mold of the cornea. The molding is accurate to 1 or 2 microns and fits perfectly because it exactly mirrors the irregularities of the individual corneal surface. The technology is well suited for post-Lasik, Keratoconus, RK, eye injury, and corneal transplant patients.

Read More in this PDF about EyePrintPro Scleral Lens Technology

Below are 2 sets (or slides) of topographical ring and “point spread function images” (PSF) of the same pair of eyes of a patient that underwent both RK and LASIK surgery.

Although you can see the distorted ring images on the photos (slide) on top, what is most interesting are the “point spread function images” (PSF) that can be seen in the upper portions of both sets of images. Look carefully at both the upper and lower sets of PSF images. These images show how a very small beam of light “spreads” after passing through a pair post-surgical (LASIK) corneas and on the same corneas with scleral lenses (lower set of slides). The very small red dot represents a fine beam of light. In the upper set of images, note the white-grey “web-like” patterns around the red beam of light. This represents how light is “spread out” when passing through a distorted post-LASIK cornea. Note how the left PSF image (the image on the right side of the slide) is significantly more distorted than the right PSF image. This is because the left cornea is more distorted than the right cornea. This is why eyeglasses and soft contact lenses cannot provide the post-LASIK distorted cornea with clear, crisp vision. Note the PSF images of same pair of eyes with scleral lenses on the lower set of slides. Note that the small beam of light has virtually no distortion after passing through the scleral lenses. Also note that the ring images in the lower half of the bottom set of slides are perfectly round. Note how the topographical rings in the lower half of the upper set of slides are significantly distorted. Scleral lenses in effect replace the cornea as an optical surface.

For over 25 years our specialty contact lens practice has been devoted to the restoration of quality vision and ocular comfort to those patients who have been affected by keratoconus, refractive surgical complications, corneal transplant surgery, ocular trauma, chronic dry eyes, corneal dystrophies and degenerations and a host of other ocular conditions and diseases.

For this reason, we named our practice the Global Vision Rehabilitation Center. The great majority of our patients who have suffered vision loss are now wearing scleral lenses designed by us using propriety software and computers made by Zeiss Optical Corporation. Because of the unique nature of each scleral lens that we design we named and registered our scleral lens design as the GVR® Scleral lens.

Every eye is unique and different from every other eye in the world, much as a fingerprint is unique and different from every other fingerprint. A great deal of time is taken and numerous examinations and tests are done before a GVR® lens can be created. We are proud of the fact that we have many thousands of patients throughout the world wearing GVR® Scleral lenses, which are providing them with clear, comfortable vision once again. Many of these patients had no functional vision for years prior to visiting our specialty practice.

The photo below shows a large GVR Scleral lens filled with sterile unpreserved saline solution. This lens is significantly larger than a gas permeable contact lens. A scleral lens is not referred to as a “contact” lens because there is not contact between the lens and the cornea. The GVR scleral lens vaults over the cornea and rests on the white portion of the eye which is called the scleral. The saline solution that you see in this photo fills the space between the back surface of the scleral lens and the front surface
of the cornea. In other words, the cornea is always in a liquid environment. A gas permeable contact lens will not be able to address the many issues that confront a compromised cornea. So many of these corneas are dry and irritated. In addition, most of the altered corneas that we see at the Global Vision Rehabilitation Center are very distorted. A conventional gas permeable contact lens will have to rest on the compromised cornea. If the cornea is dry and irritated due to LASIK surgery, transplant surgery, trauma, disease or from keratoconus,this type of lens will only make matters worse because there is contact with the cornea. The same principle holds true for a hybrid lens as this lens also will have contact with the compromised cornea. Only the scleral lens has the ability to provide relief from pain and discomfort while at the same time provide excellent vision and promote healing to the compromised cornea.