Toric IOL alignment: 86% of 14 eyes were corrected to ≤0.5 D residual cylinder at 6 weeks postop using TrueGuide computer-guidance

soloman2013 data analysis courtesy Jonathan Solomon, MD

  • Initial 14 eyes using Alcon/AMO/B&L toric IOLs
  • Cassini Topography and Baylor Nomogram Adjustment
  • TrueGuide surgical guidance algorithm
  • Mean Preop Keratometric Astigmatism 1.65 +/-0.96 D
    – Range 0.54 to 3.34 D
  • Mean Absolute Value Postop Refractive Cylinder 0.39 +/-0.35 D
  • TrueGuide Mean Absolute Value Predicted Error 0.37 +/-0.28 D
  • Mean Axis Identification Error 3.29 +/-0.94 degrees compared to reference image
  • Mean Toric IOL Axis Alignment Error 2.5+/-0.60 degrees compared to intended axis
    – 50% better than published benchmark error (Visser JCRS 2011)
2013 data analysis courtesy Jonathan Solomon, MD

LRI incision guidance: 87% of 52 eyes were corrected to ≤0.5 D residual cylinder at 6 weeks postop using TrueGuide computer-guidance

TrueGuide

  • 4 Investigational sites
  • No device-related complications were observed
  • LRI Arm (n = 52)
    At 6 weeks, 87% of eyes
    achieved residual manifest
    cylinder ≤ 0.5D
  • Capsulorhexis Arm (n = 22)
    100% of eyes achieved
    goal of 6mm or less
    capsulorhexis diameter

  Pre-Op
Centroid (D) 0.133
Centroid Axis 119.99°
Mean Cylinder (D) 1.11
Standard Deviation (D) 0.42
% Eyes ≤ 0.50 D 2%

       
  Post-Op
Centroid (D) 0.06
Centroid Axis 123.75°
Mean Cylinder (D) 0.34
Standard Deviation (D) 0.30
% Eyes ≤ 0.50 D 87%

Pre-Op Corneal Cylinder (n=52)
6 week Post-Op Manifest Cylinder (n=52)
Each ring = 0.5 D step

Source: Abstract Weinstock, ASCRS 2011

3D Visualization: Using retrospective data 66% fewer Vitrectomy over 754 eyes using TrueVision Smart 3D

Retrospective Analysis of 3D HD Visualization vs. Conventional Oculars During Routine Cataract Surgery

• Methods:

   • Analyzed consecutive cases from adjacent OR for a single surgeon
   • Routine cataract cases using two methods of visualization

Visualization Method # of Eyes Unplanned Vitrectomy
TrueVision® 3D 293 0.35% (1)
Traditional Oculars 461 1.09% (5)

• Results:

   • Unplanned vitrectomy rate was lower in TrueVision® 3D cases
   • Comparable mean surgical times (8:06 for TVS, 7:53 for oculars)

Source: Abstract Weinstock, ASCRS 2010