Khanna Vision Institute Keratoconus

Intacs for treatment of Keratoconus

Intacs are shown next to a dime. This shows how small and transparent the intacs are. So you dont have to worry if other people can see it in your eye.The center picture shows the intacs in the manufacturer's box. Notice the shape. This shape and size is important to understand how these segments help in the treatment of keratoconus eye disorder. In the left picture seymour has volunteered to lie under the intralase laser.

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What are Intacs corneal ring segments?

Intacs are small PMMA ring segments manufactured by Addition Technology. Intacs aid in the cure of keratoconus.Intacs come in different thickness ranging from 210 microns to 450 microns. They have an inner diameter and outer diameter. A the end of the segments are holes which help in implantation of the intacs.

How are Intacs ring segments implanted?

Intacs are inserted into channels created in the cornea. The channels can be created by Intralase laser, the one used to make flaps for lasik can be used to make intralase channels for insertion of Intacs. The channels can also be made with the prolate mechanical system.There are two models of intacs - Classic and SK.

How do Intacs work to treat keratoconus?

Keratoconus is central thinning and weakness of cornea. This abnormal cornea is not able to withstand the internal pressure of the eye and bows forward. This bulging cornea is also acted upon by gravity pull and force of lids. Therefore the apex of the ectatic cornea falls downward. Intacs are inserted at a distance of 7 mm from the center of the cornea. They push up and stretch the bulging apex of the keratoconus cornea. This brings the apex up in the line of sight. This is how Intacs cure vision in keratoconus.

Can Intacs be removed?

Rarely the Intacs may have to be removed. This is a relatively simple prcedure. The entry wound is freshened. The holes at the end of intacs are engaged and the intacs pulled out.

Are Intacs for everyone?

Intacs were originally used for treatment of myopia. With the advent and popularity of wavefront lasik, intacs are rarely used for correcting nearsightedness. Today they are mainly used for the treatment of keratoconus.