Sclera Contact Lens Candidate

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A Guide to Identifying

Potential Scleral Lens Patients

Sept 20, 2014

Natalie Santelli, MAT, OD

The BIG Picture

• An introduction to scleral lenses

• Goals of

Treatment

• Indications for

Treatment

• Presenting Scleral

Lenses to Patients

What are scleral lenses?

1508

• Leonardo daVinci

1888

• Adolf Fick Blown Glass “Vessicle”

1888

• Eugene Kalt Glass CTL with KCN

1889

• August Mueller Glass CTL high myopia

1900

’s

• PMMA Scleral Lenses & impression molding

• Gas Permeable Scleral Lenses

1970’s

Gas Permeable Lens Labs

Terminology

Names

Alternative

Names

Diameter Bearing

Corneal

Corneo-Scleral

Corneal-

Limbal

Semi-Scleral

Limbal

8.0 to 12.5 mm All on cornea

12.5 to 15.0 mm

Shared b/t the cornea and sclera

Tear Reservoir none

Limited capacity

(Full) Scleral Haptic

15 to 25 mm

Mini vs Large

(>18 mm)

Scleral

All on Sclera

Somewhat limited to unlimited tear reservoir capacity

Goals of Scleral Lens Treatment

• Reduce symptoms and support healing by restoring a healthy ocular surface environment

• Improve blurry vision by masking surface corneal irregularities and transmitting a sharper image to the retina

• Prevent damage by protecting the cornea against the environment and eyelids

Indications for Scleral Lens Treatment

• Vision Improvement

– Correcting the irregular cornea: Keratoconus, ectasia, post-LASIK, corneal trauma/infections, post corneal transplants (PKP), high myopia/hyperopia

• Corneal Protection

– Exposure keratitis/ocular surface disease patients

– Sjögren’s Syndrome

– Persistent Epithelial Corneal Defects

– Steven’s Johnson Syndrome

– Graft Versus Host Disease (GVHD)

– Ocular Cicatricial Pemphigoid

– Neurotrophic Corneal Disease

– Atopic Keratoconjunctivitis

• Pharmaceutical Delivery

– Antibiotic coverage while a persistant epithelial defect heals

– Reduce corneal neovascularization with anti-VEGF medications

– Pain mediation with low levels of sodium channel modulators

• Theses next slides will expand upon the indications for scleral lenses as mentioned in the previous slide

Keratoconus & Scleral Lenses

Restoring Vision, Restoring Lives

THANK YOU!

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