By a News Reporter-Staff News Editor at Journal of Technology -- Current study results on Sensor Research have been published. According to news reporting out of Homburg, Germany, by VerticalNews editors, research stated, "The purpose of the study was to implement a new eye tracking mask which could be used to guide the laser beam in automated non-mechanical excimer laser assisted penetrating keratoplasty. A new trephination mask design with an elevated surface geometry has been proposed with a step formation between conical and flat interfaces."
Our news journalists obtained a quote from the research from Saarland University, "Two recipient masks of 7.5/8.0 mm have been manufactured and tested. The masks have outer diameter of 12.5 mm, step formation at 10.5 mm, and slope of conical surfaces 15°. Its functionality has been tested in different lateral positions and tilts on a planar surface, and pig eye experiments. After successful validation on porcine eyes, new masks have been produced and tested on two patients. The build-in eye tracking software of the MEL 70 was always able to capture the masks. It has been shown that the unwanted pigmentation/pattern induced by the laser pulses on the mask surface does not influence the eye-tracking efficiency. The masks could be tracked within the 18 x 14 mm lateral displacement and up to 12° tilt. Two patient cases are demonstrated. No complications were observed during the surgery, although it needs some attention for aligning the mask horizontally before trephination. Stability of eye tracking masks is emphasized by inducing on purpose movements of the patient head. Eye-tracking-guided penetrating keratoplasty was successfully applied in clinical practice, which enables robust tracking criteria within an extended range."
According to the news editors, the research concluded: "It facilitates the automated trephination procedure of excimer laser-assisted penetrating keratoplasty."
For more information on this research see: Eye-tracker-guided non-mechanical excimer laser assisted penetrating keratoplasty. Sensors, 2013;13(3):3753-64. (Elsevier - www.elsevier.com; Sensors - www.elsevier.com/wps/product/cws_home/504103)
Our news journalists report that additional information may be obtained by contacting E. Janunts, Institute of Experimental Ophthalmology, Saarland University, Homburg, Saar 66421, Germany. Additional authors for this research include F. Schirra, N. Szentmary, B. Seitz and A. Langenbucher.
Keywords for this news article include: Europe, Homburg, Germany, Sensor Research.
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