A cataract is a clouding of the eye’s natural lens, that blocks the light to reach the retina, causing visual deterioration and finally vision loss. The eye’s natural lens is located behind the iris and is normally clear.
A cataract cannot be prevented, nor can be treated with medication. It must be treated by surgical removal.
Cataract is a very common condition and usually occurs with age.
Sometimes it can be caused by trauma, certain diseases (eg diabetes eye.) or drugs such as the chronic use of cortisone.
The main symptom of cataract is the clouding of sight which cannot be corrected by using glasses. Other symptoms are double vision, glare and reflections around light sources that impair sight.
The hardening of the lens nucleus during cataract development, causes refractive myopia, that is an increase in myopia to nearsighted people but also a decrease in hyperopia to farsighted people.
Cataract symptoms do not always manifest at the same time in both eyes. One eye may have worse sight and needs to be treated first.
Cataract surgery is an outpatient surgery. It is performed by applying local anaesthesia and lasts a few minutes.
intra-ocular lens implant
During cataract surgery the cloudy lens is removed and replaced by the proper artificial lens (intra-ocular lens implant) that restors sight. Simultaneous correction of astigmatism and presbyopia are possible using premium intra-ocular lenses (IOLs). Eye sight is usually fully restored during the first three to seven days after surgery depending on the stage and severity of cataract. After the surgery, the patient can immediately return at home and everyday life.
Premium intra-ocular lenses (IOLs)
Recent technological advances have resulted in “Premium IOLs” that have advantages over monofocal IOLs.
Premium IOLs include multifocal and extended-depth-of-focus (EDOF), which help focus vision for both far distance and up close, resulting in less dependence on glasses after cataract surgery. Toric IOLs help correct astigmatism, again resulting in less dependence on glasses after cataract surgery. The IOL you choose depends on many factors which include your lifestyle or, the specific visual necessities you are seeking. During your eye exam, we can let you know if you are a candidate for one of these Premium IOLs.
Types of Premium Intraocular Lenses
Mature or hypermature cataracts are more susceptible to complications during surgery.
In any case, doctor’s experience and technique plays a major role in order to have the desired result.