Intraocular lenses (IOL) is implanted in the eye. The pre-existing crystalline lens are replaced with the intraocular lenses. The crystalline lens are replaced when a cataract clouds over it or when refractive surgery is suggested to rectify the eye’s optical power. Intraocular lens consists of a small plastic lens and side struts which are known as haptics. This haptics holds the lens in a place within the capsule bag onside the eye.
In the past, the intraocular lens were made up of hard, inflexible material (PMMA). But today, most of the intraocular lens are fixed monofocal lenses which are matched to distance the vision. Another type of intraocular lenses now available are mutifocal lenses which provides multiple-focused vision at reading and far distance. Adaptive intraocular lenses are helpful for those who have a limited visual accommodation.
Procedure for Intraocular Lens Fitting
Eye surgery is the most common procedure for inserting an intraocular lens to treat cataracts. The surgical procedure is carried out under local anesthesia. The patient remains awake through the entire operation. It becomes easier to insert the intraocular lens into the capsule via a small incision as it is highly flexible. Hence, stitches are not needed.
The entire surgical procedure takes only 30 minutes. It usually takes around 2-3 weeks for the patient to fully recover after the operation. Post-surgery, patients should completely avoid any form of strenuous exercise that may increase their blood pressure. Regular visits to ophthalmologist is recommended for several months to monitor the patient’s lens implants.
Intraocular lens implantation has several risks which are associated with the surgery. This include:
- Night time halos
- Inflammation
- Lens rotation
- Loosening of the lens
- Eye infection
