Excimer Laser Keratectomy for Myopia With a Rotating-Slit Delivery System

Hanna, Khalil; Chastang, J.-C. A.; Pouliquen, Y.; Renard, G; Asfar, Louis; Waring, George O.

doi:10.1001/archopht.1988.01060130259039

Cited by 37 publications

(3 citation statements)

References 18 publications

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“…With this laser the ablation occurs via a direct breaking of the molecular bonds at the surface [6,7]. Two characteristics of the ArF laser wavelength (193 nm) make this possible.…”

Section: Introductionsupporting

confidence: 41%

Plasma‐mediated ablation of corneal tissue at 1053 nm using a Nd:YLF oscillator/regenerative amplifier laser

Niemz

Klancnik²,

Bille

1991

Lasers Surg Med

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Plasma-mediated ablations were performed on human donor corneas with a short pulsed Nd:YLF laser system at 1053 nm. The pulses were 60 psec in duration at a repetition rate of 1.0 kHz. The laser beam was oriented perpendicular to the cornea surface. The threshold energy densities for ablation of epithelium, Bowman's membrane and stroma were measured. They were 6.1 +/- 1.8 J/cm2, 21.0 +/- 5.1 J/cm2 and 10.4 +/- 1.8 J/cm2, respectively. The mean rate of tissue removal at the stromal energy density threshold was about 1 micron per pulse. The walls of the laser excisions were smooth with distortions of less than 1 micron. A new quantitative model of plasma-mediated ablation is introduced and found to closely predict the observed results. Based on the promising nature of the experimental data further investigations are planned in the use of a mode locked Nd:YLF laser as an alternative to excimer lasers for refractive corneal surgery.

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“…With this laser the ablation occurs via a direct breaking of the molecular bonds at the surface [6,7]. Two characteristics of the ArF laser wavelength (193 nm) make this possible.…”

Section: Introductionsupporting

confidence: 41%

Plasma‐mediated ablation of corneal tissue at 1053 nm using a Nd:YLF oscillator/regenerative amplifier laser

Niemz

Klancnik²,

Bille

1991

Lasers Surg Med

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“…[2,3]); so the reader could be surprised, since the presbyopia, which is a positive defect, is corrected, in the present way, by using the same technique as in the myopia case. [2,3]); so the reader could be surprised, since the presbyopia, which is a positive defect, is corrected, in the present way, by using the same technique as in the myopia case.…”

Section: O'o=r-o'p=r-o'mmentioning

confidence: 80%

Laser Keratectomy for correction of presbyopia

Bosi

Recla

1992

Il Nuovo Cimento D

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“…In 1987, Lieurance and associates [3581 reported using the excimer laser to remove lenticules from human eye bank eyes, resulting in a normal epithelium, intact Bowman's membrane, normal stroma, and a smoother surface than is achieved with cryolathing. Serdarevic et al 13591 employed a rotating slit delivery system [317] for trephination of donor and recipient human eye bank and rabbit corneas. Fluence was 110 mJ/cm2/pulse, and operating at a rate of 15-20 Hz, the laser required from 30 s to a few minutes to achieve perforation, depending on corneal thickness and eye stability.…”

mentioning

confidence: 99%

Lasers in ophthalmology

Krauss

Puliafito

1995

Lasers Surg Med

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This article reviews the principle uses of ophthalmic lasers, providing historical background with an emphasis on new applications and areas of investigation. Ophthalmic photocoagulation was the first medical laser application and has restored or maintained vision in millions of people. More recently, photodisruption and, increasingly, ablation have gained prominence for treating a wide range of ocular pathology. The unique properties of lasers have also been harnessed for diagnostic purposes, with optical coherence tomography representing a significant improvement over existing imaging methods. Many ophthalmic applications of lasers have been developed, but the field is a dynamic one which continues to evolve along with laser technology itself.

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Excimer Laser Keratectomy for Myopia With a Rotating-Slit Delivery System

Cited by 37 publications

References 18 publications

Plasma‐mediated ablation of corneal tissue at 1053 nm using a Nd:YLF oscillator/regenerative amplifier laser

Plasma‐mediated ablation of corneal tissue at 1053 nm using a Nd:YLF oscillator/regenerative amplifier laser

Laser Keratectomy for correction of presbyopia

Lasers in ophthalmology

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