By Lucio Buratto MD, Stephen Brint MD, Domenico Boccuzzi MD
Cataract surgical procedure and Intraocular Lenses provide an in depth assessment of intraocular lenses, because the selection of the IOL to be implanted is a serious element within the sufferer choice and surgical training, and accordingly resulting in the main optimum sufferer results.
Dr. Lucio Buratto, Dr. Stephen Brint, and Dr. Domenico Boccuzzi current the most recent info at the so much complex diagnostic thoughts and surgical judgements for IOL choice and implantation.
Cataract surgical procedure and Intraocular Lenses covers a wide selection of themes, together with monofocal IOLs, multifocal IOLs, accommodative IOLs, injectors and implantation of foldable IOLs, tear or harm of the IOL, and viscoelastic substances.
Supplemented by means of greater than two hundred colour illustrations, diagrams, a word list, and references, all surgeons from newbie to professional will wish this detailed source by means of their aspect.
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Extra resources for Cataract Surgery and Intraocular Lenses
Example text
5 mm. 0 mm. Zeiss The philosophy applied by Zeiss Meditec is slightly different from the other companies. Zeiss continues to produce just one type of 3-piece lens and has turned its attention now to a 1-piece lens, which we will examine later. The Hydromax lens is the only model to have an optic of 30 Chapter 6 A B Figure 6-4. A 3-piece hydrophobic acrylic IOL with PMMA haptics by Hoya. The models are (A) the iSpheric YA60BB with a yellow optic to protect the eye against blue light and a UV filter and (B) the iSpheric VA60BB lens with a transparent optic and a UV filter.
This lens was introduced in 1999 and was commercially available until 2004 when it was replaced by the ReZoom. 0 mm. 20 Chapter 4 Figure 4-5. The AMO Array lens, SA40N refractive multifocal silicone IOL, which was on the market between 1999 and 2004; it was eventually replaced by the ReZoom lens. This is a refractive lens with optic zones with PMMA loops with blue core. 2 mm. The disadvantages associated with this type of lens were its reduced contrast sensitivity, haloes perceived around light sources, and reduced near vision in subjects with poor pupil movement (because the IOL is refractive and therefore pupil dependent).
2. 3. The Haptics The haptics of acrylic IOLs can be produced in a variety of materials and shapes. Polyamide (Nylon): This synthetic material consists of long molecular chains, with an amide group attached at regular intervals. Due to fragmentation by hydrolysis, the use of nylon in the haptics is now obsolete. ● ● ● ● Polypropylene (Prolene): This is a synthetic polymer with high elasticity and resistance to traction. Despite the fact that it is chemoattractive and chemoadhesive for microbial agents, Prolene continues to be a good material for the haptics because of its memory and resistance to biodegradation.