Scleral lenses are large diameter gas permeable contact lenses that rest on the sclera (the white part of the eye) and vault over the cornea. They are designed to create a tear-filled reservoir between the cornea and the lens, which helps to provide a more stable and comfortable fit for the wearer. These lenses are often prescribed for people with irregular corneal surfaces, such as those with keratoconus or post-surgical corneas, as well as people who have difficulty wearing traditional contact lenses due to dry eye or other discomfort.
There are several advantages to using prescription sclera contacts over traditional contact lenses. Firstly, because they are larger and more rigid, they offer greater stability on the eye and are less likely to dislodge or move during activities. This is particularly helpful for people with irregularly shaped corneas, as it ensures that the lens will maintain a consistent position and provide clear vision throughout the day.
Additionally, the tear-filled reservoir created by scleral lenses provides constant lubrication to the eye, which can be particularly beneficial for people with dry eye syndrome or those who experience discomfort when wearing traditional contact lenses. The larger size of the lens also means that it can correct a wider range of vision problems, including astigmatism, which is often difficult to correct with regular contact lenses.
Prescription sclera contacts work by creating a smooth, curved surface on the eye, which helps to correct any irregularities in the corneal shape. This is particularly important for people with conditions like keratoconus, where the cornea becomes progressively thinner and more cone-shaped, resulting in distorted vision. By vaulting over the cornea and resting on the sclera, the lens provides a consistent and stable fit, with the tear reservoir ensuring that the eye remains lubricated and comfortable throughout the day.
One of the primary reasons that people opt for scleral lenses is due to irregular corneas, which can be caused by conditions such as keratoconus, pellucid marginal degeneration, or post-surgical corneas (e.g., after LASIK or corneal transplants). In these cases, traditional contact lenses may not provide adequate vision correction or may be uncomfortable to wear.For people who suffer from chronic dry eye syndrome, traditional contact lenses can exacerbate their symptoms and make it difficult to wear lenses for extended periods. The tear reservoir created by scleral lenses helps to keep the eye lubricated and comfortable, making them an ideal option for people with dry eye.
Scleral lenses can also be beneficial for people with high astigmatism or presbyopia, who may struggle to achieve clear vision with traditional contact lenses. Because scleral lenses are custom-fitted to the eye, they can correct a wider range of vision problems and provide improved visual acuity for these individuals.
Prescription sclera contacts can offer many benefits for people with certain eye conditions or who struggle with traditional contact lenses. If you have an irregular cornea, dry eye syndrome, or high astigmatism, scleral lenses may be an ideal solution for you. However, it's essential to consult with an eye doctor who can assess your unique eye shape and prescription, and determine if scleral lenses are the right option for you. With the proper fit and care, scleral lenses can provide improved vision and comfort, helping you to see and feel your best.
For more on scleral lenses, visit Dr. Timothy P Kenkel and Associates in our office Cincinnati, Ohio. Call (513) 661-4450 to schedule an appointment today.