Today’s Practice Refractive Fundamentals
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SEPTEMBER 2010 CATARACT & REFRACTIVE SURGERY TODAY EUROPE 85 Editor’s note: In last month’s Fundamentals column, Kathryn Masselam Hatch, MD; and Jonathan H. Talamo, MD, provided a comprehensive overview of excimer laser technology. Drs. Hatch and Talamo discussed basic concepts such as fluence, beam profile, ablation pattern, and eye tracking and registration to help readers optimize excimer laser refractive surgical outcomes. This month, Glauco Reggiani Mello, MD, and Ronald R. Krueger, MD, MSE, recount the evolution of excimer laser technology over the past 25 years, leading to LASIK and modern refractive surgery.
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Today’s Practice Refractive Fundamentals
SEPTEMBER 2011 CATARACT & REFRACTIVE SURGERY TODAY EUROPE 89 N umerous factors make the treatment of corneal astigmatism with laser corneal surgery more challenging than treatment of spherical error alone. Astigmatism can be irregular and complex, and it can be compounded by myopic or hyperopic error. Each scenario requires choice of an appropriate treatment approach. Choosing the wrong treatme...
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By Maria Clara Arbelaez, MD Hyperopia-correcting laser surgery can be broadly categorized into intrastromal and surface ablation techniques. Of intrastromal approaches, LASIK is the most popular for the correction of hyperopia. In surface treatments such as PRK, LASEK, and transepithelial PRK, mitomycin C is applied in the majority of cases. Due to differences in epithelial healing, a transepit...
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MyOPiC LASer COrreCtiOn The most popular type of laser correction for myopia is LASIK. Myopic laser correction is achieved by central corneal ablation, which reduces the refractive power of the anterior corneal surface. Myopic LASIK has been shown to be effective in correcting low to moderate myopia.1,2 LASIK correction of high myopia has been fraught with quality issues until recently. Factors...
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تاریخ انتشار 2010