By American Academy of Ophthalmology, M. Bowes Hamill MD
Significant revision for 2014-2015!
Covers the technological know-how of refractive surgical procedure, accommodative and nonaccommodative remedy of presbyopia, and sufferer review. Examines particular strategies in refractive surgical procedure and their capability problems, in addition to refractive surgical procedure in ocular and systemic disorder. This year's significant revision good points new pics and up to date info on lens implants utilized in the us and different countries.
Upon finishing touch of part thirteen, readers might be capable to:
Identify the overall kinds of lasers utilized in refractive surgeries
Explain the stairs together with clinical and social heritage, ocular exam and ancillary trying out in comparing even if a sufferer is an acceptable candidate for refractive surgery
For incisional keratorefractive surgical procedure, describe the heritage, sufferer choice, surgical suggestions, results, and complications
Explain contemporary advancements within the program of wavefront know-how to floor ablation and LASIK
Describe the differing kinds of IOLs used for refractive correction
Read Online or Download 2014-2015 Basic and Clinical Science Course (BCSC): Section 13: Refractive Surgery PDF
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Extra info for 2014-2015 Basic and Clinical Science Course (BCSC): Section 13: Refractive Surgery
Solid-state lasers have been designed to generate wavelengths of light near 193 nm without the need to use toxic gas, but the technical difficulties in manufacturing these lasers have limited their clinical use. The femtosecond laser is approved by the US Food and Drug Administration (FDA) for creating corneal flaps for LASIK and may also be used to create channels for 7 p CHAPTER 1: The Science of Refractive Surgery • 29 intrastromal ring segments and for lamellar keratoplasty and PKP. It uses a 1053-nm infrared beam that causes photodisruption, a process by which tissue is transformed into plasma, and the subsequent high pressure and temperature generated lead to rapid tissue expansion and formation of microscopic cavities within the corneal stroma.
R' CHAPTER 1: The Science of Refractive Surgery • 27 The closer the radial incisions approach the visual axis (ie, the smaller the optical zone), the greater their effect; similarly, the closer tangential incisions are placed to the visual axis, the greater is the effect. The longer the tangential incision, up to 3 clock-hours, the greater the effect. For optimum effect, an incision should be 85%-90% deep to retain an intact posterior lamella and maximum anterior bowing of the other lamellae.
Ophthalmology. 2008;115(7): 1249-1261. Schallhorn SC, Tanzer DJ, Kaupp SE, Brown M, Malady SE. Comparison of night driving performance after wavefront-guided and conventional LASIK for moderate myopia. Ophthalmology. 2009;116(4):702-709. Stonecipher KG, Kezirian GM. Wavefront-optimized versus wavefront-guided LASIK for myopic astigmatism with the ALLEGRETTO WAVE: three-month results of a prospective FDA trial. J Refract Surg. 2008;24( 4):S424-S430. Corneal Wound Healing All forms of keratorefractive surgery are exquisitely dependent on corneal wound healing to achieve the desired results.
2014-2015 Basic and Clinical Science Course (BCSC): Section 13: Refractive Surgery by American Academy of Ophthalmology, M. Bowes Hamill MD