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Contact Lens Capable of Correcting Hyperopia Without Surgery

(Science Daily) Jaume Pauné … has designed an innovative new contact lens that will improve the vision quality of thousands of people without surgery…

Pauné's design is the first contact lens capable of correcting hyperopia without refractive surgery by means of corneal reshaping, also known as orthokeratology or ortho-K. This technique uses rigid gas-permeable contact lenses to reshape the cornea to correct vision defects such as myopia, stigmatism and mild to moderate hyperopia without surgery. Each patient is fitted with unique lenses that are custom-made for his or her eyes.

For the sake of comfort, the patient wears the contact lenses only at night. The lens works by applying pressure to the tear film that coats the outside of the cornea. This pressure changes the shape of the cornea by about 20 µm, or about half the width of a strand of human hair. In the morning, the patient removes the lenses and is able to see perfectly. The results are the same as with refractive surgery, but are temporary.

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