management of keratoconus eyeglasses/soft contact lenses rigid gas permeable (rgp) contact lenses...
Post on 01-Apr-2015
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Management of Keratoconus
• Eyeglasses/soft contact lenses• Rigid gas permeable (RGP) contact lenses • Intracorneal rings• Corneal cross-linking• Corneal transplant
Eyeglasses/soft contact lenses
• For early stage of KC• Mild astigmatism/myopia• Have a limited role in improving vision
Rigid gas permeable (RGP) contact lenses
• primary option for correcting KC vision
• masks the underlying irregular cornea• functions as the new refractive surface
Intracorneal rings
• Semi-circular rings inserted into the mid layer of the cornea
• Flatten the cornea change the shape and location of the cone
• Eliminates some or all of the irregularities caused by keratoconus
• Glasses or contact lenses may still be needed
Corneal cross-linking
• Not a cure but prevents progression of KC• Glasses or contact lenses may still be needed
Corneal transplant
• May be done when:– cornea becomes dangerously thin– sufficient visual acuity to meet the individual’s
needs can no longer be achieved by contact lenses• steepening of the cornea• scarring • lens intolerance irregular cornea can no longer be
fitted with a contact lens
•
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