Keratoconus Treatment
Keratoconus is a progressive disease of the eye in which the cornea becomes thin and begins to bulge into a conical shape. Since this results in irregular refraction of light rays entering the eye, resulting in blurred, distorted vision and a high astigmatic error (high cylindrical power of glasses).
Keratoconus usually affects both eyes, but can be asymmetric. It often presents during teenage, or early twenties.
What is the treatment?
The treatment for Keratoconus is dependent on the stage and severity of your condition, and its rate of progression. In case of mild to moderate Keratoconus, eyeglasses or contact lenses may suffice to provide perfect vision. The disease can also be self-limiting, and stabilize after a few years. In case of rapidly progressive disease or advanced Keratoconus, surgical intervention may be necessary. This treatment is called Collagen crosslinking
Spectacles:
A good refraction with the proper prescription of glasses can solve most visual needs of patients with early Keratoconus or forme fruste Keratoconus.
Contact Lenses:
The most common treatment modality for Keratoconus is the use of contact lenses. Your doctor will try the regular contact lenses first, and they can help in early stages of the disease. Most patients, however, require specialized contact lenses. These are some of the options that you will need to choose from:
-Soft Contact Lenses: Since soft lenses can only correct a limited amount of astigmatism, their use is limited to few patients with the early Most patients who achieve good vision with spectacles may be considered for these lenses. However, you must be prepared for a frequent change in your prescription of glasses or contact lenses.
-Rigid Gas Permeable or Hard Contact Lenses: These are offered to patients who do not get functional vision with the use of soft contact lenses. You might find that these lenses are uncomfortable at first, but most people eventually adjust to wearing them. These can correct corneal astigmatism better than soft lenses.
-Piggyback Lenses: These are special lenses, and your doctor will offer you these if you find the rigid lenses to be very uncomfortable. In this, your doctor will give you a combination of two lenses, a procedure that requires specialized Hybrid lenses, on the other hand, apply the same logic in a single lens. These lenses have a softer ring or frill around a rigid center, providing the advantages of both lenses. The rigid lens corrects high astigmatism, while the soft frill keeps you more comfortable. These contact lenses are considerably more expensive
-Scleral Contact Lenses and Rose K Lenses: These lenses are especially useful in advanced cases of Keratoconus, and are specially manufactured for patients with advanced disease. These lenses are large diameter lenses and rest on the sclera, which is the white part of the cornea, and vault over the irregular cornea. These are also expensive, and their fitting requires the services of a specialist.
Fitting contact lenses in a patient of Keratoconus is an especially tricky job, and you must make sure you remain under the care of a cornea specialist for this, and ensure regular follow up to avoid any complications.
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Published on: Jun 20, 2022
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