Excimer Laser Surgery: Biometrical Iris Eye Recognition with Cyclorotational Control Eye Tracker System
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 measu...
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MDPI AG
2017-05-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/17/6/1211 |
| _version_ | 1798005314221506560 |
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| author | Bojan Pajic Zeljka Cvejic Zoran Mijatovic Dragan Indjin Joerg Mueller |
| author_facet | Bojan Pajic Zeljka Cvejic Zoran Mijatovic Dragan Indjin Joerg Mueller |
| author_sort | Bojan Pajic |
| collection | DOAJ |
| description | 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° with a standard deviation of 3.1°. The total range of torsion was from −14.9° to +12.6°. 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. |
| first_indexed | 2024-04-11T12:37:14Z |
| format | Article |
| id | doaj.art-f9439549ccb64a889808f65f57eeb5ac |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T12:37:14Z |
| publishDate | 2017-05-01 |
| publisher | MDPI AG |
| record_format | Article |
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| spelling | doaj.art-f9439549ccb64a889808f65f57eeb5ac2022-12-22T04:23:35ZengMDPI AGSensors1424-82202017-05-01176121110.3390/s17061211s17061211Excimer Laser Surgery: Biometrical Iris Eye Recognition with Cyclorotational Control Eye Tracker SystemBojan Pajic0Zeljka Cvejic1Zoran Mijatovic2Dragan Indjin3Joerg Mueller4Swiss Eye Research Foundation, Eye Clinic ORASIS, 5734 Reinach AG, SwitzerlandFaculty of Sciences, Department of Physics, University of Novi Sad, Trg Dositeja Obradovica 4, Novi Sad 21000, SerbiaFaculty of Sciences, Department of Physics, University of Novi Sad, Trg Dositeja Obradovica 4, Novi Sad 21000, SerbiaSchool of Electronic and Electrical Engineering, University of Leeds, Leeds LS2 9JT, UKSwiss Eye Research Foundation, Eye Clinic ORASIS, 5734 Reinach AG, SwitzerlandA 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° with a standard deviation of 3.1°. The total range of torsion was from −14.9° to +12.6°. 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.http://www.mdpi.com/1424-8220/17/6/1211cyclorotation control eye tracker systemExcimer laserrefractive surgery |
| spellingShingle | Bojan Pajic Zeljka Cvejic Zoran Mijatovic Dragan Indjin Joerg Mueller Excimer Laser Surgery: Biometrical Iris Eye Recognition with Cyclorotational Control Eye Tracker System Sensors cyclorotation control eye tracker system Excimer laser refractive surgery |
| title | Excimer Laser Surgery: Biometrical Iris Eye Recognition with Cyclorotational Control Eye Tracker System |
| title_full | Excimer Laser Surgery: Biometrical Iris Eye Recognition with Cyclorotational Control Eye Tracker System |
| title_fullStr | Excimer Laser Surgery: Biometrical Iris Eye Recognition with Cyclorotational Control Eye Tracker System |
| title_full_unstemmed | Excimer Laser Surgery: Biometrical Iris Eye Recognition with Cyclorotational Control Eye Tracker System |
| title_short | Excimer Laser Surgery: Biometrical Iris Eye Recognition with Cyclorotational Control Eye Tracker System |
| title_sort | excimer laser surgery biometrical iris eye recognition with cyclorotational control eye tracker system |
| topic | cyclorotation control eye tracker system Excimer laser refractive surgery |
| url | http://www.mdpi.com/1424-8220/17/6/1211 |
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