Different treatments are available, depending on the severity of the keratoglobus and the intended goal. Sometimes corneal surgery will be recommended or even needed. Advice and fitting of contact lenses are available at the clinic. There are different types of contact lenses available, including soft lenses, shape-stable lenses, hybrid lenses and scleral lenses. This method is possible in both incipient and advanced corneal ectasia. If correcting glasses does not have a sufficient effect, vision can be improved with the help of contact lenses. Pellucid marginal degeneration (PMD) is an idiopathic, progressive, non-inflammatory, ectatic corneal disorder characterized by a peripheral inferior band of corneal thinning in a crescent-shaped pattern 1, although PMD cases with areas of superior thinning have been reported 2. In the early stages of ectasia, visual acuity can often be improved by the correction of glasses. If an allergy is causing the rubbing, the ophthalmologist may prescribe medication. Research has shown that this has a beneficial effect on stabilisation. Since a strong correlation has been found between the worsening of corneal ectasias and rubbing the eyes, the first advice is to stop rubbing your eyes. People with severe dry eye also find relief when using scleral lenses.The choice of treatment for pellucid marginal degeneration and other corneal ectasias is based on the severity of the disease, the nature of the symptoms and the presence of any progression. They are also used when an eye has a chronic disease or has had trauma to the cornea. These special Scleral Lenses are also used to help restore vision and comfort for those individuals who have had loss of vision due to Corneal Transplant Surgery or Refractive Surgeries such as Lasik, RK, PRK. Special Scleral Lenses are used for The Treatment of Advanced Keratoconus, Pellucid Marginal Degeneration, and Post-Lasik Ectasia. They are done close to home and usually at considerably less cost. The Boston Scleral Lens Prosthetic Device (BSLPD) is simply a scleral lens that has been given a proprietary name.Ĭustom lenses prescribed in our office have very positive outcomes. They cover the irregularly shaped cornea and feel more comfortable than prior designs. They rest on the white part of the eye (sclera) rather than on the cornea. Scleral and semi-scleral lenses are lenses that are about the size of a normal soft contact lens and made in gas permeable (GP) materials. At times, a soft lens can be used to restore sight but usually, special gas permeable contact lenses are needed to restore vision. Customized lenses are made specifically for that cornea, and this means better comfort and clarity. Special contact lenses specifically designed for keratoconus can reduce the need for a corneal transplant. This information is then used to build custom lenses to the unique corneal shape. Each cornea is unique in shape, similar to the uniqueness of your “fingerprint”. Keratoconus can be difficult to detect and the diagnosis of Keratoconus is commonly missed if the practitioner is unfamiliar with the early-stage symptoms of the disease.Ī special instrument called a Corneal Topographer measure 8,000 points of the cornea to give us a precise map. There is usually a high amount of astigmatism. As the condition worsens, there is more distortion in the cornea. Keratoconus affects about I person in every 2,000-3,000.Īs the cornea becomes more irregular in shape, individuals become more and more nearsighted, have more astigmatism, and become sensitive to glare and light. Pellucid marginal degeneration (PMD) is a non-inflammatory and progressive ectatic corneal disease characterized by a narrow band of corneal thinning separated from the limbus by a relatively uninvolved area 12 mm in width 1. If affects both girls and boys and may be greater in one eye than the other. The most likely reason for keratoconus is genetic. There can be scarring (clouding) of the cornea which further makes it difficult to see and may necessitate a corneal transplant. Keratoconus can occur in either one or both eyes. Vision becomes worse depending on the amount of cornea that is affected. As light passes through the distorted cornea, it causes distorted vision. This often begins when someone is in their teens or 20’s. In Keratoconus, the normally round shaped cornea becomes thin and begins to bulge into a cone-like shape. The cornea is the front part or “cover” of the eye and is the first and most important surface when light enters into the eye. Keratoconus (ker-at-o-conus) is a progressive eye disease that affects the cornea. other diseases that cause distortion of the cornea.Injuries, diseases, and congenital problems that have caused distortion of the cornea.Q & A: What is Keratoconus? How can special lenses help? Specialty Contact Lens Videos & Stories.Binocular Vision Dysfunction (BVD) and Vertical Heterophoria (VH).Car Accidents, Concussions and Your Vision.Vision Therapy For Improved Reading Skills In Children.
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