Phakic IOL is an effective procedure for patients who have thin cornea, high myopia, high hyperopia or mild keratoconus.
The word “phakic” means that your natural crystalline lens is not removed from the eye. A phakic intraocular lens (IOL) is placed into the eye. Accordingly, the phakic IOL implant functions as an internal contact lens and the view through the phakic IOL is natural and of a good quality. Phakic IOLs are used to treat severe myopia or hyperopia with or without astigmatism, or mild keratoconus.
Minamiaoyama Eye Clinic started performing phakic IOL surgery in 5000 total.
Phakic IOL Suitability
Phakic IOLs are particularly suitable for the following candidates:
Advantages and Disadvantages of Phakic IOL
|Advantages||Glasses or contact lenses will be unnecessary.
Any discomfort with contact lenses will be eliminated.
Quality of vision is usually better than that achieved with glasses or contact lenses.
Astigmatism is corrected.
Although the phakic IOL is intended to be permanent, the procedure is reversible, if desired.
|Disadvantages||Phakic IOLs are made-to-order. It takes a few months to manufacture the appropriate phakic IOLs.
Like any surgical procedure, Phakic IOL has risks associated with it. The following is a list of possible risks:
・Undercorrection or overcorrection
・Inadequate fixation of the lens
・Cloudiness of anterior capsule
・Attachment of cells to lens posterior surface
Types of Phakic IOL
There are two types of phakic IOLs―anterior chamber lenses which are placed in the anterior chamber of the eye between the iris and the cornea, and posterior chamber lenses which are placed in the posterior chamber behind the iris.
Anterior Chamber Phakic IOL
The Artisan phakic IOL manufactured by Ophtec BV (The Netherlands) is placed behind your cornea and above your iris. This phakic IOL, which is made of PMMA, functions as another focusing lens that provides high-quality, high-definition vision like that of a normal eye.
The Artiflex IOL has been developed by Ophtec BV, too. The central part of this IOL, through which the light passes, is made of silicone and the fixation points are made of PMMA. The Artiflex IOL is inserted into the eye through a small incision; this results in rapid visual improvement and induces a lesser degree of astigmatism.
Posterior Chamber Phakic IOL
The ICL manufactured by Staar Surgical (U.S.A.) is placed in the posterior chamber behind the iris and rests against the bag of crystalline lens. The ICL is made of collamer, the combination of collagen and HEMA polymer and inserted into the eye through a small incision; this results in rapid visual improvement.
Phakic IOL Exams and Surgery
Initial Eye Exam
Instructions for Patients Wearing Contact Lenses
Preoperative Final Exam
Phakic IOL Surgery
The cost of Phakic IOL surgery on both eye is 990,000 JPY, which includes consumption tax.
Phakic IOL Outcome
The followings are the outcome of the phakic IOL at Minamiaoyama Eye Clinic in 2008.