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Title

Excimer laser surgery: biometrical iris eye recognition with cyclorotational control eye tracker system

Authors
Cvejic, Zeljka
Mijatovic, Zoran
Indjin, Dragan
Mueller, Joerg
Published in Sensors. 2017, vol. 17, no. 6, p. 1211
Abstract A prospective comparative study assessing the importance of the intra-operative dynamic rotational tracking-especially in the treatment of astigmatisms in corneal refractive Excimer laser correction-concerning clinical outcomes is presented. The cyclotorsion from upright to supine position was measured using iris image comparison. The Group 1 of patients was additionally treated with cyclorotational control and Group 2 only with X-Y control. Significant differences were observed between the groups regarding the mean postoperative cylinder refraction (p < 0.05). The mean cyclotorsion can be calculated to 3.75 degrees with a standard deviation of 3.1 degrees. The total range of torsion was from -14.9 degrees to +12.6 degrees. Re-treatment rate was 2.2% in Group 1 and 8.2% in Group 2, which is highly significant (p < 0.01). The investigation confirms that the dynamic rotational tracking system used for LASIK results in highly predictable refraction quality with significantly less postoperative re-treatments.
Keywords Cyclorotation control eye tracker systemExcimer laserRefractive surgery
Identifiers
PMID: 28587100
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Research group Ophtalmologie expérimentale (925)
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(ISO format)
PAJIC, Bojan et al. Excimer laser surgery: biometrical iris eye recognition with cyclorotational control eye tracker system. In: Sensors, 2017, vol. 17, n° 6, p. 1211. doi: 10.3390/s17061211 https://archive-ouverte.unige.ch/unige:142150

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Deposited on : 2020-09-29

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