Download Cataract and Refractive Surgery: Progress III by Martin Heur, William J. Dupps Jr (auth.), Thomas Kohnen, PDF

By Martin Heur, William J. Dupps Jr (auth.), Thomas Kohnen, Douglas D. Koch (eds.)

The necessities in Ophthalmology sequence represents readership attractiveness of the 1st sequence, every one of an specific updating ebook at the growth in all 8 volumes. it is a luck that used to be made p- subspecialties of ophthalmology. sible predominantly by way of the varied opinion-leading In a quarterly rhythm, 8 matters are released authors and the exceptional part editors, in addition to masking clinically suitable achievements within the complete with the positive aid of the writer. There box of ophthalmology. This well timed move of develop- are many stable purposes to proceed and nonetheless enhance ments for the absolute best care of our eye sufferers has the dissemination of this didactic and clinically r- confirmed to be powerful. The preliminary operating speculation of evant details. offering new wisdom instantly following p- lication within the peer-reviewed magazine and never ready G.K. Krieglstein for the textbook seems to be hugely conceivable. R.N. Weinreb we're now getting into the 3rd cycle of the necessities sequence Editors in Ophthalmology sequence, having been inspired by means of September 2008 Preface we're happy to proportion with our readers this 3rd uncorrected and, in a single example, corrected imaginative and prescient. version of Cataract and Refractive surgical procedure, lower than subject matters in corneal refractive surgical procedure contain disc- 3 years from ebook of the second one version. sion of the administration of upper order aberrations The dramatic velocity of switch in cataract and refractive and corneal approaches for treating presbyopia.

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When a large zonular defect or severe zonular weakness requires zonular support before cataract removal, insertion of a CTS causes minimal zonular stress compared to CTR implantation. When used as capsule retractors in place of iris retractors, CTSs avoid the risk of equatorial capsule expansion, retractor dislodgement, and anterior or posterior capsule tears [10]. 4 The CTR as a Measuring Gauge A CTR may be used to measure the actual capsular circumference by determining the distance between the ring ends.

With a pre-existent dehiscence, the CTR may be inserted prior to phacoemulsification, following gentle thorough hydrodissection and lens content rotation, in order to ensure that all corticocapsular adhesions have been severed. Then, additional cortico-capsular viscodissection with a dispersive ocular visco-surgical device (OVD) like methylcellulose is additionally performed. The OVD cushion between capsule and cortex thereby created avoids capsular entanglement when the leading eyelet of the CTR is advanced.

The CBR was part of a ring haptic IOL with two or three broad junctions serving as stiffeners to reduce haptic deformation within a shrinking capsular bag. In the 20 eyes followed-up for 3 years, LEC migration unto the posterior capsule was completely blocked except in one eye where the IOL with only two junctions allowed for inward-kinking of the ring haptic. In this case, additional anterior capsule polishing may also have been efficient in avoiding haptic deformation. Summary for the Clinician ■ ■ ■ ■ Tailed and foldable closed rings exclude gaping of the ring ends which otherwise opens a gateway for LEC immigration Tailed rings adapt to any size or shrinkage of the capsular bag Foldable closed rings may be bent inwards in case of excessive capsular shrinkage.

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