A versatile treatment for nearly all optical prescriptions is the Implantable Collamer Lens (ICL) or phakic IOL. Implantable lenses do not interfere the eye's natural lens or cornea. Phakic IOLs are ideal for anyone who wants clear vision without spectacles, contact lenses, or where procedures such as LASIK and PRK are not recommended. For people aged between 21-60, ICL treatment is used to treat a wide range of optical prescriptions such as myopia (up to -18D), hyperopia (up to +10D) and also astigmatism (up to -6D). Prior to surgery, your eyes will be numbed and your pupils dilated using eye drops. Your surgeon will make a tiny opening in the cornea and place the thin folded implantable lens into the eye. The lens is then carefully unfolded and positioned under the pupil. Modern phakic IOLs have a tiny hole in the lens to allow the flow of aqueous fluid to drain out of the eye. Sutures are not required as the opening in the cornea is self-sealing. Vision will be clear for distance, intermediate and near visual tasks. Although Phakic IOLs are left in the eye permanently, they can be removed and replaced if necessary. Therefore, they do not affect the outcomes of other procedures such as cataract surgery which may be required later in life. Further advantages of Implantable Collamer Lenses include: a fast recovery time and low risk of ocular complications. ICL treatment is ideal if you suffer from dry eyes but may not be advised if you suffer from cataracts, glaucoma or uveitis. Compared to laser-based treatments, you will notice significantly less glare at night and there is also less risk of dry eyes.