• Users Online: 82
  • Home
  • Print this page
  • Email this page
Home About us Editorial board Ahead of print Current issue Search Archives Submit article Instructions Subscribe Contacts Login 
ORIGINAL ARTICLE
Year : 2021  |  Volume : 22  |  Issue : 1  |  Page : 1-9

Analysis of I-Trace high-order aberrations induced by wavefront-optimized ablation profiles


Department of Ophthalmology, Faculty of Medicine, Alexandria University, Alexandria, Egypt

Correspondence Address:
MD, PhD Ehab F Mossallam
Department of Ophthalmology, Faculty of Medicine, Alexandria University, 542 EL-Horreya Avenue, Roushdy, Alexandria 21500
Egypt
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/DJO.DJO_47_20

Rights and Permissions

Aim This work aimed to analyze the ocular aberrations induced by wavefront-optimized (WFO) ablation profiles using I-Trace aberrometer (ray tracing). Settings and design This is a prospective noncomparative nonrandomized clinical study that was carried out at Rooya Eye Center, Alexandria, Egypt. Patients and methods The study included 20 eyes of 10 cases that underwent laser in situ keratomileusis with WFO ablation profile. Cases were followed up at 1 and 3 months after surgery to analyze the ocular aberrations done using I-Trace Visual Functional Analyzer (ray tracing technology). Results The mean preoperative total high-order aberration was changed from 0.33±0.2 to 0.38±0.21 after 1 month (P=0.107) and became 0.35±0.15 at 3 months (P=0.265), which was statistically insignificant, with an increase of 6.074%. The mean preoperative coma was 0.27±0.17 and changed to 0.29±0.2 after 1 month (P=0.345) and became 0.32±0.22 at 3 months (P=0.107), which was statistically insignificant, with an increase of 17.6%. The mean increase in spherical aberrations was from 0.086±0.06 preoperatively to 0.18±0.15 after 1 month (P=0.018) and to 0.19±0.24 at 3 months (P=0.036), which was statistically significant, with an increase of 119.4%. The secondary astigmatism mean preoperative value was 0.06095±0.0439 and increased to 0.0787±0.0535 after 1 month (P=0.103) and became 0.1059±0.0592 at 3 months (P=0.098), which was statistically insignificant, with an increase of 73.7%. The trefoil preoperative mean was 0.18±0.13 and changed to 0.16±0.09 after 1 month (P=0.125) and became 0.15±0.07 at 3 months (P=0.251), which was statistically insignificant, with a decrease of −13.7%. Conclusion There was no significant total high-order aberrations increase after WFO ablation profile for low to moderate myopia.


[FULL TEXT] [PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed970    
    Printed6    
    Emailed0    
    PDF Downloaded116    
    Comments [Add]    

Recommend this journal