This Article  • References  • Full text PDF  • Reply to article  • Send to a friend  • Save in My Folder  • Save to citation manager  • Permissions  Citing Articles  • Citation map  • Citing articles on HighWire  • Contact me when this article is cited  Related Content  • Similar articles in this journal  Social Bookmarking   What's this?

Carmen A. Puliafito, MD; David Stern, MS; Ronald R. Krueger, MD; Eric R. Mandel, MD

Arch Ophthalmol. 1987;105(9):1255-1259.

Abstract
• We have used laser-based highspeed photography to investigate excimer laser ablation of the cornea. Photographs of the ablation plume were obtained 500 ns to 150 µs after incidence of a 193- or 248-nm excimer laser pulse on the surface of the cornea. Ejection of material from the cornea begins on a time scale of nanoseconds and continues for 5 to 15 µs following the excimer pulse. At 193 nm the ablation plume resembles a burst of smoke, and individual particles are too small to be optically resolved with our apparatus. At 248 nm the plume resembles a spray of larger, discrete droplets. Material is ejected from the cornea at supersonic velocity but decelerates rapidly; the velocity for the first 500 ns following the excimer pulse averages 400 m/s at 193 nm. Plume size and velocity increase with increasing fluence.

Author Affiliations
From the Laser Research Laboratory, Massachusetts Eye and Ear Infirmary (Drs Puliafito, Krueger, and Mandel and Mr Stern), and the Department of Ophthalmology, Harvard Medical School (Dr Puliafito), Boston.

Footnotes
Accepted for publication June 3, 1987.

Reprint requests to Laser Research Laboratory, 243 Charles St, Boston, MA 02114 (Dr Puliafito).

CiteULike    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter     What's this?

THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES

Posterior corneal topographic changes after partial flap during laser in situ keratomileusis
Sharma et al.
Br J Ophthalmol 2003;87:160-162.
ABSTRACT | FULL TEXT  

Do Intact Viral Particles Survive Excimer Laser Ablation?
Taravella et al.
Arch Ophthalmol 1997;115:1028-1030.
ABSTRACT  

Clinical Analysis of Steep Central Islands After Excimer Laser Photorefractive Keratectomy
Krueger et al.
Arch Ophthalmol 1996;114:377-381.
ABSTRACT  

Corneal Surface Morphology Following Excimer Laser Ablation With Humidified Gases
Krueger et al.
Arch Ophthalmol 1993;111:1131-1137.
ABSTRACT