What are scleral lenses?
Scleral lenses are custom, large diameter gas permeable (GP) contact lenses. They are much bigger than most GP lenses, so they completely “vault” over the cornea and rest on the white part of the eye called the sclera. Unlike soft contact lenses and conventional gas permeable lenses, sclerals do not touch the cornea. They tuck underneath both eyelids making them more comfortable to wear.
Why wear scleral lenses?
- Scleral lenses are made out of highly oxygen permeable GP materials.
- They are made exactly for your visual needs to give you customized vision correction.
- They are durable and may last for one to two years.
- They provide extra moisture for healthy eyes and for people who have severe dry eyes.
Since scleral lenses are designed to vault over the cornea entirely, they create a fluid filled space between the back surface of the lens and the cornea. The cornea stays moist enhancing ocular comfort.
Irregularly shaped corneas, such as in keratoconus, past corneal surgery, or previous corneal injury, may prohibit good vision with glasses or disposable soft contact lenses. Scleral lenses counteract the shape of the cornea by creating a fluid filled chamber or “tear lens” between the irregular corneal surface and the back surface of the contact lens.
Additionally, scleral lenses provide comfort comparable to, and in some cases, superior to soft contact lenses. Unlike standard small gas permeable contact lenses, scleral lenses are not prone to shifting or “popping” out of place.
Who can benefit from scleral lenses?
Patients that have irregular corneas, severe dry eye/ocular surface disease, and patients with a refractive error not sufficiently managed with other forms of correction can benefit from improved vision with scleral lenses. Some conditions in which patients benefit from scleral lenses include but isn’t limited to:
- Pellucid Marginal Degeneration
- Severe Dry Eye/Sjogren’s Syndrome
- Neurotrophic Keratopathy
- Ocular Cicatricial Pemphigoid
- Post-Radial Keratometry
- Post Corneal Transplant
- Salzmann Nodular Degeneration
- Post-LASIK ectasia
- Terrien’s Marginal Degeneration
- Scarred Corneas
- Exposure Keratitis (such as Bell’s Palsy)
- Limbal Stem Cell Deficiency
- Corneal Dystrophies
Dr. Andrzejewski and Dr. Malooley have fit many patients in scleral lenses with great success and want to help you see your absolute best. If you have been told you need a gas permeable or “hard” contact lens to improve your vision or are interested in an evaluation to see if you can benefit from scleral lenses, call our office to schedule an assessment.
How do insert and remove my scleral lenses?
Always follow the care instructions your eye care provider gives you. If you are struggling with insertion and removal of your scleral lenses you can watch videos at: