Consistent comparison of angle Kappa adjustment between Oculyzer and Topolyzer Vario topography guided LASIK for myopia by EX500 excimer laser
Journal Title: International Journal of Ophthalmology - Year 2018, Vol 11, Issue 4
Abstract
"AIM: To evaluate and compare the uniformity of angle Kappa adjustment between Oculyzer and Topolyzer Vario topography guided ablation of laser in situ keratomileusis (LASIK) by EX500 excimer laser for myopia. METHODS: Totally 145 cases (290 consecutive eyes )with myopia received LASIK with a target of emmetropia. The ablation for 86 cases (172 eyes) was guided manually based on Oculyzer topography (study group), while the ablation for 59 cases (118 eyes) was guided automatically by Topolyzer Vario topography (control group). Measurement of adjustment values included data respectively in horizontal and vertical direction of cornea. RESULTS: Horizontally, synclastic adjustment between manually actual values (dxmanu) and Oculyzer topography guided data (dxocu) accounts 35.5% in study group, with mean dxmanu/dxocu of 0.78±0.48; while in control group, synclastic adjustment between automatically actual values (dxauto) and Oculyzer topography data (dxocu) accounts 54.2%, with mean dxauto/dxocu of 0.79±0.66. Vertically, synclastic adjustment between dymanu and dyocu accounts 55.2% in study group, with mean dymanu/dyocu of 0.61±0.42; while in control group, synclastic adjustment between dyauto and dyocu accounts 66.1%, with mean dyauto/dyocu of 0.66±0.65. There was no statistically significant difference in ratio of actual values/Oculyzer topography guided data in horizontal and vertical direction between two groups (P=0.951, 0.621). CONCLUSION: There is high consistency in angle Kappa adjustment guided manually by Oculyzer and guided automatically by Topolyzer Vario topography during corneal refractive surgery by WaveLight EX500 excimer laser."
Authors and Affiliations
Feng-Ju Zhang
Keywords
Related Articles
- EP ID EP491337
- DOI 10.18240/ijo.2018.04.21
- Views 60
- Downloads 0
Characteristics of central visual field defect after macular hole surgery
"AIM: To investigate the characteristics of postoperative central visual field defect (cVFD) in patients with macular hole (MH). METHODS: Eighteen eyes from 18 MH patients were involved in this retrospective study which...
Comment on “Post photorefractive keratectomy corneal ectasia”
Comment and Response
Eye reflux: an ocular extraesophageal manifestation of gastric reflux
"AIM: To suspect laryngopharyngeal reflux (LPR) in patients with ocular surface disease (OSD). METHODS: The present study evaluated a group of subjects with OSD assessing the Ocular Surface Disease Index (OSDI) and the R...
Optical coherence tomography changes following vitrectomy for long standing premacular hemorrhage in Valsalva retinopathy
Letter
Interleukin-13 and age-related macular degeneration
AIM: To identify the effects of interleukin (IL)-13 on retinal pigment epithelial (RPE) cells and the IL-13 level in aqueous humor of age-related macular degeneration (AMD) patients. METHODS: IL-13 levels in a...