Laser Eye Surgery Glossary

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    I

    Idiopathic

    Naturally occurring. Further reading

    In Situ

    A Latin term meaning "in place" or not removed. Further reading

    Informed Consent Form

    A document disclosing the risks, benefits, and alternatives to a procedure. Ultralase will supply you with a copy of this prior to your laser eye surgery consultation, and you will be required to sign it before we can treat you.

    INTACS

    Intrastromal Corneal Ring Segments used to treat kerataconus. An alternative laser eye surgery using two ring shaped implants, surgically inserted into the cornea. This has a flattening effect on the cornea caused by kerataconus and is potentially reversable. Further reading

    Intralase

    LASIK laser eye surgery procedure where the flap is created by an Intralase laser and not with a microkeratome (surgical blade) as in standard LASIK. It eliminates the blade and associated flap complications.

    Intra ocular lens (IOL)

    Intra ocular lens eye surgery is used to treat severe cases of hyperopia, astigmatism and myopia. This procedure involves inserting an implant called an Intra ocular lens into the eyes. Further reading

    Intra ocular pressure

    The pressure the fluid contained within the eye exerts on the globe. Further reading

    Iris

    The coloured ring of tissue behind the cornea and immediately in front of the lens. The Iris expands and contracts to alter the amount of light entering the eye. Further reading

    Iris recognition

    Like your fingerprints, no two irises are the same and this can be used to provide a unique identification. The Zyoptix z100 system can scan your irises during the Zywave measurement and maps the entire iris, generating a unique digital Zy-ID for each eye. This map of the iris forms the foundation from which the Multi-Dimensional Eyetracker operates. The Zy-ID is the unique digital file that contains the patient's laser eye treatment information, including the map of the Iris. Further reading

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