Visante OCT PIOL simultation study

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Visante OCT PIOL simultation study

• C. BUDO, Ass Prof MD
  University Clinic of Maastricht
• Ophthalmology, Site Sint-Truiden
  camille.budo_at_skynet.be

Medical Mentor OPHTEC BV Consultant OPHTEC
BV Consultant CARL ZEISS
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Study Objective

• To compare safety and vault measurements in
  pre-operative Visante OCT images using the PIOL
  template with post-operative Visante OCT images
  of the same eyes using the prescribed PIOL.

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Study Methods

• Records of patients who had Phakic IOL
  implantation and had both pre and post-operative
  Visante scans were reviewed.
• Scans of 56 eyes from 33 patients were qualified
  for inclusion.
• For each eye, one pre-operative scan had the
  template placed by the Principal Investigator
  (CB).
• The following measurements were made for both pre
  and post-operative eyes
• Safety measurements at 0 degrees, center and 180
  degrees
• Central vault measurements

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Implantation simulation
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Discussion

• Safety measurements pre-op are smaller than
  post-op conservative approach template placed
  higher compared to actual PIOL position
• Vault measurements pre-op are larger than post-op
  confirms high placement position of template
• Medium correlation between predicted and actual
  vault may be due to natural physiological changes
  of the crystalline lens

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CONCLUSION

• First experience with the Visante OCT phakic IOL
  simulation tool is promising.
• The results have shown high correlation between
  predicted clearance of the PIOL to the
  endothelium and the actual outcome.
• There is a learning curve in placing the
  template. In this study the templates have been
  placed higher than the actual implant position.
• The Visante OCT software enables the surgeon
  to optimise the template placement.