Scientific presentation
Refractive outcomes in post-myopic LVC eyes – Barrett True K formula with Total Keratometry (TK)
22 September 2019
· 3 min watch
![]({"xsmall":"https://www.zeiss.com/content/dam/med-hcp/reference-master/myzeiss/peer-insights/free/ophthalmic-diagnostics/324-on-demand-webinar-iol-power-calculation-standard-cases-to-post-laser-vision-correction/g_barrett.jpg/_jcr_content/renditions/original.image_file.100.100.file/g_barrett.jpg","small":"https://www.zeiss.com/content/dam/med-hcp/reference-master/myzeiss/peer-insights/free/ophthalmic-diagnostics/324-on-demand-webinar-iol-power-calculation-standard-cases-to-post-laser-vision-correction/g_barrett.jpg/_jcr_content/renditions/original.image_file.360.360.file/g_barrett.jpg","medium":"https://www.zeiss.com/content/dam/med-hcp/reference-master/myzeiss/peer-insights/free/ophthalmic-diagnostics/324-on-demand-webinar-iol-power-calculation-standard-cases-to-post-laser-vision-correction/g_barrett.jpg/_jcr_content/renditions/original./g_barrett.jpg","large":"https://www.zeiss.com/content/dam/med-hcp/reference-master/myzeiss/peer-insights/free/ophthalmic-diagnostics/324-on-demand-webinar-iol-power-calculation-standard-cases-to-post-laser-vision-correction/g_barrett.jpg/_jcr_content/renditions/original./g_barrett.jpg","xlarge":"https://www.zeiss.com/content/dam/med-hcp/reference-master/myzeiss/peer-insights/free/ophthalmic-diagnostics/324-on-demand-webinar-iol-power-calculation-standard-cases-to-post-laser-vision-correction/g_barrett.jpg/_jcr_content/renditions/original./g_barrett.jpg","xxlarge":"https://www.zeiss.com/content/dam/med-hcp/reference-master/myzeiss/peer-insights/free/ophthalmic-diagnostics/324-on-demand-webinar-iol-power-calculation-standard-cases-to-post-laser-vision-correction/g_barrett.jpg/_jcr_content/renditions/original./g_barrett.jpg","max":"https://www.zeiss.com/content/dam/med-hcp/reference-master/myzeiss/peer-insights/free/ophthalmic-diagnostics/324-on-demand-webinar-iol-power-calculation-standard-cases-to-post-laser-vision-correction/g_barrett.jpg/_jcr_content/renditions/original./g_barrett.jpg"})
Author
Prof. Graham Barrett, MD
Lions Eye Institute, Perth, Australia
Summary
Barrett True K formula with Total Keratometry (TK)
Prof. Graham Barrett, MD presents first results comparing the refractive outcomes in post-myopic LASIK patients using various formulas. He finds that the Barrett True K formula with Total Keratometry (TK) improved the outcome prediction compared to the Barrett True K with classic K’s by 6.7 percent point.