CALIBRATION OF TREPHINE BLADE DEPTH

Authors
SCHOR P ROCHA E CHEEMA DP MILLER D
Citation
P. Schor et al., CALIBRATION OF TREPHINE BLADE DEPTH, Journal of refractive surgery, 13(1), 1997, pp. 89-90
Citations number
2
Categorie Soggetti
Ophthalmology,Surgery
Journal title
Journal of refractive surgery → ACNP
ISSN journal
1081597X
Volume
13
Issue
1
Year of publication
1997
Pages
89 - 90
Database
ISI
SICI code
1081-597X(1997)13:1<89:COTBD>2.0.ZU;2-9
Abstract
PURPOSE: To assess the accuracy and precision of the Barren radial vac uum trephine as an instrument for corneal lamellar dissection. METHODS : We describe a practical method to calibrate individual trephines pri or to lamellar corneal procedures using the calibration microscope des igned for diamond knives. RESULTS: We observed that one turn (360 degr ees) of the trephine produced a mean blade displacement of 0.25mm. How ever, individual trephines demonstrated a significant range of variabi lity. CONCLUSION: For highly accurate trephination, it is useful to ca librate each individual trephine using the calibration microscope.