A cataract is clouding or opacity of the lens inside the eye that can impair vision. A normally clear lens passes the light through to the back of the eye, which makes it possible to see well-defined images. In case when the part of the lens becomes opaque light does not pass through easily and the vision becomes blurry – like looking through cloudy water or a fogged-up window. The more opaque (cloudier) the lens becomes the worse it will affect the vision.
There is no exact reason why cataract is being developed while getting older but risk factors are identified by researchers. These are:
- Excessive amounts of alcohol consumption
- A cataract history in family
- Eye injury, inflammation history
- Eye surgery history
- Radiation therapy
- High blood pressure
- Air pollution
- Taking corticosteroid medication at a high dose or for a long time
- A poor diet lacking in vitamins
- Lifelong exposure of eyes to sunlight
When cataract symptoms begin to appear, you may be able to improve your vision for a while, using new glasses. Think about surgery when your cataract have progressed enough to seriously impair your vision and when vision loss interferes with your everyday activities. Surgery involves removing the natural cloudy lens of the eye and replacing it with an artificial lens (Intraocular Lens or IOL), and it remains a permanent part of your eye.
If you need to have cataract surgeries in both eyes, the procedure is typically scheduled for two separate surgeries, usually four to eight weeks apart. This allows time for the first eye to heal before the second eye surgery takes place. Cataract surgery is generally done on an outpatient basis, which means you won’t need to stay in a hospital after the surgery. The procedure takes less than an hour. Most patients are awake during the procedure and need only local anesthesia in order to numb the area around the eye. Surgery to remove a cataract is the only way to get rid of a cataract. This surgery is efficient and really makes a difference in people’s life.
Monofocal lenses are the first developed IOLs, and they were designed only for far distance focusing. Even though there is now an array of different types of IOLs on the market, monofocal IOLs are still the most commonly implanted IOLs in cataract surgeries.Read more
Monofocal Toric Lenses
According to a large scale clinical study performed on 4500 cataract patients, 40% of them exhibited >1.0D astigmatism preoperatively and needed spectacle or contact lenses correction even after cataract surgery in order to reach a clear vision.Read more
Given that most of cataract patients suffer from presbyopia (decreased vision for close distance), even with an improved vision for far distance after their cataract surgery, they will still need spectacles corrections for task requiring a crisp near vision. To solve this problem Multifocal IOLs (Reviol) or “bifocal” IOLs were developed.Read more
Multifocal Toric Lenses
For patients who suffer both from cataract and astigmatism, choosing multifocal toric intraocular lenses (Reviol Toric) will allow them to tackle both conditions by providing good, near and distant visions alongside astigmatism correction.Read more