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28 February 2014 Corneal refractive surgery: Is intracorneal the way to go and what are the needs for technology?
Jesper Hjortdal M.D., Anders Ivarsen
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Proceedings Volume 8930, Ophthalmic Technologies XXIV; 89300B (2014) https://doi.org/10.1117/12.2054449
Event: SPIE BiOS, 2014, San Francisco, California, United States
Abstract
Corneal refractive surgery aims to reduce or eliminate refractive errors of the eye by changing the refractive power of the cornea. For the last 20 years controlled excimer laser ablation of corneal tissue, either directly from the corneal stromal surface or from the corneal interior after creation of a superficial corneal flap has become widely used to correct myopia, hyperopia, and astigmatism. Recently, an intrastromal refractive procedure whereby a tissue lenticule is cut free in the corneal stroma by a femtosecond laser and removed through a small peripheral incision has been introduced. This procedure avoids creation of a corneal flap and the potential associated risks while avoiding the slow visual recovery of surface ablation procedures. Precise intrastromal femtosecond laser cutting of the fine lenticule requires very controlled laser energy delivery in order to avoid lenticule irregularities, which would compromise the refractive result and visual acuity. This newly introduced all-femtosecond based flap-free intracorneal refractive procedure has been documented to be a predictable, efficient, and safe procedure for correction of myopia and astigmatism. Technological developments related to further improved cutting quality, hyperopic and individualized treatments are desirable.
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Jesper Hjortdal M.D. and Anders Ivarsen "Corneal refractive surgery: Is intracorneal the way to go and what are the needs for technology?", Proc. SPIE 8930, Ophthalmic Technologies XXIV, 89300B (28 February 2014); https://doi.org/10.1117/12.2054449
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KEYWORDS
Surgery
Femtosecond phenomena
Cornea
Monochromatic aberrations
Visualization
LASIK
Excimer lasers
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