Scleral Contact Lenses: Customized Vision
Have you been informed in the past that you are not a candidate for contact lenses, or that you cannot wear contact lenses because of an irregular cornea, dry eye syndrome, or another issue? If so, you may want to consider pursuing scleral contact lenses. They are a customizable lens that can worn by a greater number of individuals. Specialty scleral contact lenses can provide you with the freedom you desire and the clarity you deserve and need. Contact our Edmonton optometrists for a consultation today!Schedule An Exam Our Optometrists
Specialized Contact Lenses in Edmonton.
Scleral Contact Lenses: What Are They?
Scleral contact lenses are large-diameter gas permeable contact lenses specially designed to span the entire corneal surface and rest on the "white" portion of the eye (sclera). The result is that the scleral lenses functionally replace the irregular cornea with a perfectly smooth optical surface to correct vision problems caused by keratoconus or other corneal irregularities. The gap formed between the cornea and back surface of a scleral lens becomes a reservoir for a saline solution that provides comfort for people with severe dry eyes, who otherwise could not tolerate contact lens wear.Schedule A Scleral Contact Lens Fitting
What is Keratoconus?
Keratoconus (ker-uh-toe-KOH-nus) is an eye condition in which your cornea — the clear, dome-shaped front of your eye — gets thinner and gradually bulges outward into a cone shape. A cone-shaped cornea causes blurred vision, may cause increased sensitivity to light and glare, and challenges achieving clear vision and comfort with traditional contact lenses.
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Am I A Candidate For Scleral Contact Lenses?
In general, anyone seeking the best vision possible with contact lenses is a candidate for scleral lenses. However, scleral gas permeable contact lenses are particularly advantageous to individuals with the following conditions:
keratoconus, or is the result of eye surgery, vision often cannot be fully corrected with eyeglasses or soft contact lenses. In such cases, scleral lenses can provide sharper vision.When the cornea has an irregular shape, either due to a natural cause, an eye condition such as
If traditional gas permeable contact lenses cannot be comfortably fitted on your eyes, or the shape of your eyes makes it easy for the lenses to becomed dislodged during sports activities, scleral lenses can offer a more secure and comfortable fit.
dry eye syndrome prevents you from wearing conventional contact lenses, scleral lenses may be the solution. The saline reservoir between the back surface of scleral lenses and the cornea serves as a tear reservoir, which helps keep the front of your eye more moist and comfortable.If Schedule A Scleral Contact Lens Fitting
See Your Best With Scleral Lenses.
Benefits of Scleral Contact Lenses
Benefits of scleral contact lenses include:
- Cone-shaped corneas cannot be properly corrected using eyeglasses or conventional contact lenses. Larger scleral contact lenses sit on the sclera, rather than the cornea, to provide clear and comfortable vision.
- Irregularly shaped corneas (i.e., naturally or resulting for surgery) challenge clear vision with glasses or traditional contact lenses. Scleral contacts provide secure, comfortable and clear vision.
- The saline reservoir between lens and cornea serves as a tear reservoir to provide conistent moisture and relief from dry eye symptoms.
- The large size of scleral lenses keeps them centered and secure on the eye, providing consistent, stable vision.
- The large diameter of scleral lenses offers a wider optical zone that provides enhanced peripheral vision.
- Covering a larger portion of the eye, scleral contacts offer greater protection from dust, debris, allergens, etc.
- As a RGP contact lens, sclerals are made to last.
- With greater durability and longer lifespans than standard contact lenses, scleral contacts are a cost effective option, even when accounting for their unique fitting fees.
Custom Contact Lenses in Edmonton.
Scleral Contact Lenses: Types & Uses
Scleral contacts are comparatively larger than standard gas permeable (GP) contact lenses and have a diameter equal to or greater than soft contact lenses. With the average cornea being approximately 11.8 millimetres in diameter, even small scleral contact lenses cover the entire corneal surface. Corneo-scleral lenses often are a good choice for people who require larger-than-normal GP lenses for greater comfort. They also are frequently used when contact lenses are needed following corneal refractive surgery to correct irregular astigmatism. Larger scleral lenses are great for conditions such as keratoconus, chronic dry eyes, and severe ocular surface disease that may benefit from a large tear reservoir. That is because the gap created between lens and cornea would have a greater capacity to hold fluid (i.e., saline) and span large corneal variances.Schedule A Scleral Contact Lens Fitting
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Scleral Contact Lenses: What To Expect.
Scleral contact lenses are tailor-made for each patient. Accordingly, fitting scleral contacts requires greater expertise, technology (i.e., corneal topographer) and more time than fitting standard soft or gas permeable contact lenses. Also, because scleral contact lenses are a precision product, adjustments to lens parameters may be needed and addtional be made and exchanged. The complete fitting process can require several visits to determine the optimal lens for both eyes. Mastering inserting and removing scleral lenses may also take some practice, even for experienced contact lens wearers. This is due to the larger lens size and the need to maintain a fluid reservoir under the lenses. Because of the expertise needed to fit and manufacture scleral lenses, costs are noteably greater than compared to fitting soft or GP contact lenses.Schedule A Scleral Contact Lens Consult
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