Smoothing of the ablated porcine anterior corneal surface using the Technolas Keracor 217C and Nidek EC-5000 excimer lasers

Marco Lombardo, Sebastiano Serrao

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

PURPOSE: To demonstrate efficacy of a smoothing technique to increase regularity of the anterior corneal surface after photorefractive keratectomy (PRK), using two different excimer lasers. METHODS: Spherical ablations of -10.00 D were performed on 11 fresh porcine corneas using either the Technolas Keracor 217C scanning-spot or the Nidek EC-5000 scanning-slit beam excimer laser. Following the procedure, we performed a phototherapeutic keratectomy treatment (smoothing technique) on half of the corneal surface. The smoothing technique-was performed using a viscous solution of 0.25% sodium hyaluronate, which was spread on the cornea-prior to the procedure. The ablation zone was 6 mm in diameter and the transition zone extended to 3 mm. The ablation depth was set at 10 μm. Corneas were then examined with scanning electron microscopy. RESULTS: Smoother treatment zones were apparent in porcine corneas in which smoothing was performed following PRK, with both laser systems. Results from the two lasers were not directly compared. CONCLUSIONS: The smoothing procedure performed following PRK using a viscous 0.25% sodium hypluronate masking solution and a scanning laser system rendered the porcine corneal surface more regular.

Original languageEnglish
Pages (from-to)450-453
Number of pages4
JournalJournal of Refractive Surgery
Volume20
Issue number5
Publication statusPublished - Sep 2004

Fingerprint

Excimer Lasers
Photorefractive Keratectomy
Cornea
Swine
Lasers
Hyaluronic Acid
Electron Scanning Microscopy
Sodium
Therapeutics

ASJC Scopus subject areas

  • Ophthalmology

Cite this

Smoothing of the ablated porcine anterior corneal surface using the Technolas Keracor 217C and Nidek EC-5000 excimer lasers. / Lombardo, Marco; Serrao, Sebastiano.

In: Journal of Refractive Surgery, Vol. 20, No. 5, 09.2004, p. 450-453.

Research output: Contribution to journalArticle

@article{1c2d0b7857b842f086aadd531f70e8fc,
title = "Smoothing of the ablated porcine anterior corneal surface using the Technolas Keracor 217C and Nidek EC-5000 excimer lasers",
abstract = "PURPOSE: To demonstrate efficacy of a smoothing technique to increase regularity of the anterior corneal surface after photorefractive keratectomy (PRK), using two different excimer lasers. METHODS: Spherical ablations of -10.00 D were performed on 11 fresh porcine corneas using either the Technolas Keracor 217C scanning-spot or the Nidek EC-5000 scanning-slit beam excimer laser. Following the procedure, we performed a phototherapeutic keratectomy treatment (smoothing technique) on half of the corneal surface. The smoothing technique-was performed using a viscous solution of 0.25{\%} sodium hyaluronate, which was spread on the cornea-prior to the procedure. The ablation zone was 6 mm in diameter and the transition zone extended to 3 mm. The ablation depth was set at 10 μm. Corneas were then examined with scanning electron microscopy. RESULTS: Smoother treatment zones were apparent in porcine corneas in which smoothing was performed following PRK, with both laser systems. Results from the two lasers were not directly compared. CONCLUSIONS: The smoothing procedure performed following PRK using a viscous 0.25{\%} sodium hypluronate masking solution and a scanning laser system rendered the porcine corneal surface more regular.",
author = "Marco Lombardo and Sebastiano Serrao",
year = "2004",
month = "9",
language = "English",
volume = "20",
pages = "450--453",
journal = "Journal of Refractive Surgery",
issn = "1081-597X",
publisher = "Slack Incorporated",
number = "5",

}

TY - JOUR

T1 - Smoothing of the ablated porcine anterior corneal surface using the Technolas Keracor 217C and Nidek EC-5000 excimer lasers

AU - Lombardo, Marco

AU - Serrao, Sebastiano

PY - 2004/9

Y1 - 2004/9

N2 - PURPOSE: To demonstrate efficacy of a smoothing technique to increase regularity of the anterior corneal surface after photorefractive keratectomy (PRK), using two different excimer lasers. METHODS: Spherical ablations of -10.00 D were performed on 11 fresh porcine corneas using either the Technolas Keracor 217C scanning-spot or the Nidek EC-5000 scanning-slit beam excimer laser. Following the procedure, we performed a phototherapeutic keratectomy treatment (smoothing technique) on half of the corneal surface. The smoothing technique-was performed using a viscous solution of 0.25% sodium hyaluronate, which was spread on the cornea-prior to the procedure. The ablation zone was 6 mm in diameter and the transition zone extended to 3 mm. The ablation depth was set at 10 μm. Corneas were then examined with scanning electron microscopy. RESULTS: Smoother treatment zones were apparent in porcine corneas in which smoothing was performed following PRK, with both laser systems. Results from the two lasers were not directly compared. CONCLUSIONS: The smoothing procedure performed following PRK using a viscous 0.25% sodium hypluronate masking solution and a scanning laser system rendered the porcine corneal surface more regular.

AB - PURPOSE: To demonstrate efficacy of a smoothing technique to increase regularity of the anterior corneal surface after photorefractive keratectomy (PRK), using two different excimer lasers. METHODS: Spherical ablations of -10.00 D were performed on 11 fresh porcine corneas using either the Technolas Keracor 217C scanning-spot or the Nidek EC-5000 scanning-slit beam excimer laser. Following the procedure, we performed a phototherapeutic keratectomy treatment (smoothing technique) on half of the corneal surface. The smoothing technique-was performed using a viscous solution of 0.25% sodium hyaluronate, which was spread on the cornea-prior to the procedure. The ablation zone was 6 mm in diameter and the transition zone extended to 3 mm. The ablation depth was set at 10 μm. Corneas were then examined with scanning electron microscopy. RESULTS: Smoother treatment zones were apparent in porcine corneas in which smoothing was performed following PRK, with both laser systems. Results from the two lasers were not directly compared. CONCLUSIONS: The smoothing procedure performed following PRK using a viscous 0.25% sodium hypluronate masking solution and a scanning laser system rendered the porcine corneal surface more regular.

UR - http://www.scopus.com/inward/record.url?scp=4644294995&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=4644294995&partnerID=8YFLogxK

M3 - Article

VL - 20

SP - 450

EP - 453

JO - Journal of Refractive Surgery

JF - Journal of Refractive Surgery

SN - 1081-597X

IS - 5

ER -