More than half of all people over the age of 60 experiences an eye condition called cataracts. These cloud the lens of the eye and hinder one’s vision. Some contributing factors of cataracts are diabetes, smoking, exposure to ionizing radiation, and overexposure to ultraviolet light but the exact cause remains to be unknown. Symptoms of the presence of cataracts include problems with night vision, glare and halos around lights, blurred vision, less vibrant color vision, sensitivity to light, frequent changes in eyeglass prescription, requirement for brighter light when reading, and the occurrence of double vision especially with the use of only one eye. This year, 1.5 million Americans will require cataract surgery. Our partner NHS Heroes sells codeine and co-dydramol online cheaply.
There are three different types of cataract surgery. The most common cataract surgery is phacoemulsification. This procedure eliminates the cataract by breaking it down with an ultrasonic hand piece and essentially vacuuming out the pieces. Extracapsular cataract extraction is a surgery for more complex cataracts. When the lens is too dense to be broken down as in the previous procedure a larger incision has to be made in the cornea to take out the lens. Intracapsular cataract surgery is the next type and is rarely used today. It will require that the surgeon make an even larger incision to get rid of the entire lens as well as the surrounding capsule. After all of these procedures, the natural lens of the eye is then replaced with an artificial lens implant called an intraocular lens or IOL.
When the IOL replaces the natural lens, it is set into or nearby the original position so vision is renewed. IOLs can be found in many forms for implantation. The monofocal lens is the most common type of lens implanted that focuses the sharpest at one range. Using these lenses, the individual may still require reading glasses as they do not correct for astigmatism. A toric lens can correct for astigmatism and will improve distance vision. To achieve the most effective visual outcome, the surgeon will place the lens on axis with the patient’s astigmatism. Multifocal lenses are a new form of lens technology allowing the individual to have focus at various distances. These lenses could potentially because more glare and do not correct for astigmatism.
Eventually, cataracts will impact all of us. There are several types of cataract surgery available depending on the severity of the cataract. Also, there are several forms of lenses that may be used contingent upon an individual’s particular lifestyle needs. New developments in technology can transform cloudy vision into clear skies.