Effect of marking pens on femtosecond laser-assisted flap creation

Takeshi Ide, George D. Kymionis, Ashkan M. Abbey, Sonia H Yoo, William W Culbertson, Terrence O'Brien

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Purpose: To compare the ease of the flap lift after central corneal marking with 2 types of marking pens after femtosecond laser-assisted flap creation in laser in situ keratomileusis. Setting: Bascom Palmer Eye Institute, University of Miami, Miami, Florida, USA. Methods: Porcine eyes were prepared for flap creation with a femtosecond laser (IntraLase). The eyes were assigned to 1 of 4 groups. After the femtosecond laser treatment, the difficulty of flap lifting the 4 groups was compared. Results: Twelve porcine eyes, 3 in each group, were evaluated. In the 2 groups in which an oil-based pen was used, the corneal flap could not be lifted. In the 2 groups in which a water-based pen was used, the corneal flap was easily lifted. Conclusions: Oil-based ink may reduce the ability of the femtosecond laser to penetrate the cornea. The resultant corneal flap may require aggressive manipulation to be lifted. When used to mark the center of the cornea before flap creation, water-based ink provided greater ease of corneal flap lifting than oil-based ink. Because the marking is located over the center of the pupil, any alteration of the cornea in this area from aggressive flap lifting may result in substantial visual loss. Therefore, the use of an oil-based ink to mark the central cornea must be avoided to prevent traumatic irregularities of the flap stroma.

Original languageEnglish
Pages (from-to)1087-1090
Number of pages4
JournalJournal of Cataract and Refractive Surgery
Volume35
Issue number6
DOIs
StatePublished - Jun 1 2009

Fingerprint

Ink
Cornea
Oils
Lasers
Swine
Laser In Situ Keratomileusis
Water
Pupil
Therapeutics

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems
  • Surgery

Cite this

Effect of marking pens on femtosecond laser-assisted flap creation. / Ide, Takeshi; Kymionis, George D.; Abbey, Ashkan M.; Yoo, Sonia H; Culbertson, William W; O'Brien, Terrence.

In: Journal of Cataract and Refractive Surgery, Vol. 35, No. 6, 01.06.2009, p. 1087-1090.

Research output: Contribution to journalArticle

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