Multifocal or accommodating intraocular lens
Multifocal or accommodating intraocular lens - Dude men chat cam
Phacoemulsification is the most commonly performed cataract procedure in the developed world.
The intraocular lenses used in correcting astigmatism are called toric and have been FDA approved since 1998.
Following surgical removal of the natural lens, an artificial intraocular lens implant is inserted (eye surgeons say that the lens is "implanted").
Cataract surgery is generally performed by an ophthalmologist (eye surgeon) in an ambulatory (rather than inpatient) setting, in a surgical center or hospital, using local anesthesia (either topical, peribulbar, or retrobulbar), usually causing little or no discomfort to the patient.
The development of intraocular lenses brought about an innovation as patients previously did not have their natural lens replaced and as a result had to wear very thick eyeglasses or some special type of contact lenses.
Presently, IOLs are especially designed for patients with different vision problems.
Many patients' first symptoms are strong glare from lights and small light sources at night, along with reduced acuity at low light levels.
During cataract surgery, a patient's cloudy natural cataract lens is removed and replaced with a synthetic lens to restore the lens's transparency.
The first procedure is phacoemulsification (phaco) and the second involves two different types of extracapsular cataract extraction (ECCE). Foldable lenses are generally used for the 2-3mm phaco incision, while non-foldable lenses are placed through the larger extracapsular incision.
The small incision size used in phacoemulsification (2-3mm) often allows "sutureless" incision closure.
ECCE utilises a larger incision (10-12mm) and therefore usually requires stitching, and this in part led to the modification of ECCE known as manual small incision cataract surgery (MSICS).
Cataract extraction using intracapsular cataract extraction (ICCE) has been superseded by phaco & ECCE, and is rarely performed.
Cataract surgery is the removal of the natural lens of the eye (also called "crystalline lens") that has developed an opacification, which is referred to as a cataract.