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Delimiters AcrySof range of vision eye surgery macular degeneration degeneration astigmatism excimer laser femtosecond stp protocol excimer emetropija macula macular degeneration stp protocol best corrected vision in glaucoma intraocular lens IOL Cataract Cataract cataract surgery keratectomy keratoconus corrected vision correction LASIK LASEK PRK OCT multifocal cornea stp protocol corneal refractive refractive refractive error refrakcin visual acuity retinopathy retina retinal topography hyperopia hyperopia myopia nearsighted nearsightedness
At the time of cataract surgery implanted intraocular lens (IOL), which is selected from a variety of patients of different intraocular lenses. One of the features of the IOL design shape - spherical or aspherical IOL. Our clinic used spherical IOL AcrySof Natural and AcrySof IQ aspheric. A few of these differences reflect the lenses in the study description below.
Over time, cataract surgery has evolved from a cataract extraction intrakapsulinės (when the lens was removed with the capsule) to a modern phacoemulsification. Various used for intraocular lens (IOL) material and design allows them to be implanted through a very small incision, which no longer sew, and higher IOL optical zone provides sharper vision. However, despite the success of cataract operations, good refractive solutions, patients sometimes complain of altered vision-beam division, halos of light source, the blurred images and the overall deterioration of vision after surgery for the time being. After cataract surgery and IOL implantation contrast sensitivity may also be reduced - it depends on the IOL optic design, dimensions, and light transmission characteristics of the overall quality of the IOL.
Wavefront analysis used successfully refrakcinėje surgery, measuring stp protocol the total optical system stp protocol aberrations. It becomes a new tool to assess and influence the visual quality of the IOL. Of these studies is to improve pseudofakinių eye (ie, the implanted IOL) visual quality, at the same time and patient quality of life.
Carried out prospektyvinėje, stp protocol randomized, double-blind stp protocol study compared the two acrylic stp protocol IOL by the same manufacturer - aspheric IOL (AcrySof IQ SN60 WF) and spherical IOL (AcrySof Single-Piece SA60AT). IOL was implanted after routine cataract procedures. IOL differences were analyzed in relation to spherical aberration and colleges, photopic contrast sensitivity and subjective patient questionnaire, to be completed.
All enrolled patients were older than 50 years of age. They Abuva performed on both eyes cataract surgery phacoemulsification stp protocol method and implanted IOL in the posterior stp protocol chamber. From the study were patients stp protocol found to have any other ocular pathology that may affect the visual stp protocol results of the previously operated patients with corneal astigmatism greater than 1.5D, as well as those who would like to monovision vision after surgery, or who are close to cataract surgery and other necessary surgical intervention eye . The study also were excluded patients during stp protocol surgery was a complication - bleeding into the anterior stp protocol chamber, Descemet's membrane was peeling, iris damage, posterior capsule rupture, vitreous outflow or ligament rupture of the lens; post-operative setting IOL decentration of more than 1 mm incision sewn on demand or any of the other eye became more apparent pathology results were also not evaluated. The study confirmed the South Carolina Medical University.
In order to identify differences in the ways the operation, before surgery and 1 and 3 months. after surgery, patients were evaluated best corrected visual acuity (BCVA), contrast sensitivity using Photopic best to take correction, pupil size. Cataract was assessed according to the intensity of the lens nucleus stp protocol of