During CLEAR, the crystalline lens is extracted and an IOL replaces it in a process that is very similar to cataract surgery: both involve lens replacement, local anesthesia, last approximately 30 minutes, and require making a small incision in the eye for lens insertion. (wikipedia.org)
Senile cataract is an age-related, vision-impairing disease characterized by gradual progressive clouding and thickening of the lens of the eye. (medscape.com)
Hypermature cataract: This is a dense white opacity that obscures the red reflex and contains milky fluid within the capsule, a result of degenerated lens cortex. (medscape.com)
Immature cataract: This is a cataract characterized by a variable amount of opacification, present in certain areas of the lens. (medscape.com)
Incipient cataract or dysfunctional lens syndrome: The patient reports visual complaints but can still read at 20/20 despite lens opacity confirmed via slit lamp-examination. (medscape.com)
Depending on the integrity of the posterior lens capsule, the 2 main types of lens surgery are the intracapsular cataract extraction (ICCE) and the extracapsular cataract extraction (ECCE). (medscape.com)
In PDM, the intracellular accumulation of sorbitol owing to poor metabolic control causes changes in the crystalline lens proteins, which result in cataract. (avehjournal.org)
Posterior2
It involves extraction of the entire lens, including the posterior capsule and mechanical or enzymatic lysis of the zonular support structures. (medscape.com)
Finally, because the posterior capsule is not intact, the IOL to be implanted must be placed in the anterior chamber, sutured to the iris, or surgically fixated in the posterior chamber. (medscape.com)
Patient's1
This type of IOL is also called phakic intraocular lens (PIOL), as it is implanted without removing the patient's natural crystalline lens. (wikipedia.org)
Extraction2
More commonly, IOLs are implanted via Clear Lens Extraction And Replacement (CLEAR) surgery, also known as refractive lens exchange (RLE) or clear lens extraction (CLE). (wikipedia.org)
All refractive procedures, including prescription of spectacles, corneal refractive procedures and lens extraction, should be deferred until normalisation of BGL in phakic and pseudophakic PDM, as higher sugar levels affect corneal curvature and thickness and overall vision. (avehjournal.org)
Refractive1
An Intraocular lens (IOL) is a lens implanted in the eye usually as part of a treatment for cataracts or for correcting other vision problems such as short sightedness and long sightedness, a form of refractive surgery. (wikipedia.org)
Clear lens1
These may include both high- and low-density areas, with some clear lens fibers. (medscape.com)
Contact lenses1
Effective IOL implants also eliminate the need for glasses or contact lenses post-surgery for most patients. (wikipedia.org)
ICCE1
Although the myriad postoperative complications has led to the decline in popularity and use of ICCE, it still can be used when zonular integrity is too severely impaired to allow successful lens removal and IOL implantation with an ECCE, particularly carefully selected posttraumatic and hypermature cataracts. (medscape.com)
Natural3
If the natural lens is left in the eye, the IOL is known as phakic, otherwise it is a pseudophakic lens (or false lens). (wikipedia.org)
Both kinds of IOLs are designed to provide the same light-focusing function as the natural crystalline lens. (wikipedia.org)
The term ' pseudophakia' refers to having an artificial intraocular lens (IOL) implanted after the natural eye lens is removed. (avehjournal.org)
Surgery2
This is to ensure that eye growth, which disrupts IOL lenses, will not occur post-surgery. (wikipedia.org)
glaucoma, astigmatism, remaining near or far sightedness, rotation of the lens inside the eye one or two days after surgery. (wikipedia.org)
Eyes1
citation needed] Intraocular lenses have been used since 1999 for correcting larger errors in near-sighted, far-sighted, and astigmatic eyes. (wikipedia.org)