1 / 8

Presented by: Ray T. Oyakawa, M.D.

Comparison of PalmScan and IOL Master axial lengths measurements. Presented by: Ray T. Oyakawa, M.D. Sharper Vision Centers. A MEDICAL GROUP. ASCRS Chicago 2008. No financial interests. Study Design. Prospective study for axial length measurement comparison between PalmScan & IOL Master.

jasper
Download Presentation

Presented by: Ray T. Oyakawa, M.D.

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Comparison of PalmScan and IOL Master axial lengths measurements Presented by: Ray T. Oyakawa, M.D. Sharper Vision Centers A MEDICAL GROUP ASCRS Chicago 2008 No financial interests

  2. Study Design • Prospective study for axial length measurement comparison between PalmScan & IOL Master. • 74 consecutive eyes of patients for presbyopia correcting IOLs between January 19, 2007 & October 17, 2007. • Three eyes were eliminated-could not be measured with IOL Master V 3.02 software & 5.02 software. One eye was successfully measured with V. 5.02 when it could not be measured with V 3.02. 47 eyes were done with V 3.02 software and 24 eyes with V 5.02 software.

  3. Patient characteristics • 36 pts., one unilateral • Average age 68.8, range 50 to 84 • 38 female eyes, 33 male eyes • 4 Refractive Lens Exchanges • 67 for presbyopia correcting IOL

  4. Technique • IOL Master measurements were taken by two experienced technicians. • All immersion measurements were taken by the author with the patient in a supine position using the Micro Medical PalmScan handheld A-scan.

  5. Eye characteristics • 35 right eyes 36 left eyes • Range 21.38 mm to 28.91 mm • One psuedophakic eye, 8 post LASIK eyes-3 also post PPV • One post PPV w/buckle

  6. Results • Range of axial lengths 21.38 mm to 28.91 mm-IOL Master • Average axial length 24.53 mm –standard deviation 1.82 mm-IOL Master • Average difference in axial length between the PalmScan and IOL Master • 0.022 mm with standard deviation of 0.10 mm and R coef. of 0.998 • 4.1 % of eyes could not be measured with the IOL Master version 5.02 software.

  7. Results Correlation Coefficient = 0.998

  8. Conclusion • Axial length measurements by the PalmScan immersion ultrasound is comparable to the IOL Master and can be used when the IOL Master can not get an axial length measurement. • Immersion was needed in 4.1% (3/74). • Immersion units are still need even if you have an IOL Master.

More Related