Intacs Implant

Intacs: Improving Vision for Keratoconus Patients

Top, implanted KeraVision Intacs,
bottom, Intacs segments.

About Keratoconus

Keratoconus is an eye disease that affects the cornea, the clear front portion of the eye. For patients with keratoconus, they experience a progressive thinning and an outward bulging of the cornea. This thinning an bulging creates a cone-like shape cornea, which results in a distorted vision. A normal, healthy eye is more spherical in shape, allowing an image to come into focus clearly. Intacs Surgery may be an options for patients who experience contact lens intolerance.


Intacs are microthin prescription inserts which are implanted to reshape the cornea. Two tiny rings that are made of special biocompatible plastic permanently correct vision once they are placed in the eye. You can’t see them and you can’t feel them. They are currently FDA approved to correct low amounts of nearsightedness.

There are several advantages of Intacs. They can be easily exchanged to meet a person’s changing vision and do not require removal of tissue from the central cornea which is the most critical part of the eye for vision.

The goal of the Intacs procedure is to provide the patient with the ability to achieve improved functional vision with contact lenses or glasses and in some cases without them.

Treating Keratoconus

Founder and chief surgeon of EyeSight Hawaii, Dr. John Olkowski, is a corneal specialist with over 25 years of experience. He performs the Intacs surgery, for improving the vision of patients with keratoconus, at our main office located in Honolulu, HI. Traditionally, keratoconus (a cone shaped cornea) has only been treated with corneal transplantation surgery or with rigid contact lenses. For some patients, contact lenses and glasses no longer work for them. For those patients who cannot tolerate contacts, the Intacs Surgery provide another option for correcting vision.

Read a Honolulu Star-Bulletin article featuring Intacs done by Dr. Olkowski.