Cargando…

The Comparison between Torsional and Conventional Mode Phacoemulsification in Moderate and Hard Cataracts

PURPOSE: To compare the intraoperative performances and postoperative outcomes of cataract surgery performed with longitudinal phacoemulsification and torsional phacoemulsification in moderate and hard cataracts. METHODS: Of 85 patients who had senile cataracts, 102 eyes were operated on using the I...

Descripción completa

Detalles Bibliográficos
Autores principales: Kim, Dong-Hyun, Wee, Won-Ryang, Lee, Jin-Hak, Kim, Mee-Kum
Formato: Texto
Lenguaje:English
Publicado: The Korean Ophthalmological Society 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2992560/
https://www.ncbi.nlm.nih.gov/pubmed/21165231
http://dx.doi.org/10.3341/kjo.2010.24.6.336
_version_ 1782192760085807104
author Kim, Dong-Hyun
Wee, Won-Ryang
Lee, Jin-Hak
Kim, Mee-Kum
author_facet Kim, Dong-Hyun
Wee, Won-Ryang
Lee, Jin-Hak
Kim, Mee-Kum
author_sort Kim, Dong-Hyun
collection PubMed
description PURPOSE: To compare the intraoperative performances and postoperative outcomes of cataract surgery performed with longitudinal phacoemulsification and torsional phacoemulsification in moderate and hard cataracts. METHODS: Of 85 patients who had senile cataracts, 102 eyes were operated on using the Infiniti Vision System. Preoperative examinations (slit lamp examination, mean central corneal thickness, and central endothelial cell counts) were performed for each patient. Cataracts were subdivided into moderate and hard, according to the Lens Opacities Classification System III grading of nucleus opalescence (NO). Eyes in each cataract group were randomly assigned to conventional and torsional phaco-mode. Intraoperative parameters, including ultrasound time (UST), cumulative dissipated energy (CDE), and the balanced salt solution plus (BSSP) volume utilized were evaluated. Best corrected visual acuity (BCVA) was checked on postoperative day 30; mean central corneal thickness and central endothelial cell counts were investigated on postoperative days 7 and 30. RESULTS: Preoperative BCVA and mean grading of NO showed no difference in both groups. Preoperative endothelial cell count and central corneal thickness also showed no significant difference in both groups. In the moderate cataract group, the CDE, UST, and BSSP volume were significantly lower in the torsional mode than the longitudinal mode, but they did not show any difference in the hard cataract group. Torsional group showed less endothelial cell loss and central corneal thickening at postoperative day seven in moderate cataracts but showed no significant differences, as compared with the longitudinal group, by postoperative day 30. CONCLUSIONS: Torsional phacoemulsification showed superior efficiency for moderate cataracts, as compared with longitudinal phacoemulsification, in the early postoperative stage.
format Text
id pubmed-2992560
institution National Center for Biotechnology Information
language English
publishDate 2010
publisher The Korean Ophthalmological Society
record_format MEDLINE/PubMed
spelling pubmed-29925602010-12-17 The Comparison between Torsional and Conventional Mode Phacoemulsification in Moderate and Hard Cataracts Kim, Dong-Hyun Wee, Won-Ryang Lee, Jin-Hak Kim, Mee-Kum Korean J Ophthalmol Original Article PURPOSE: To compare the intraoperative performances and postoperative outcomes of cataract surgery performed with longitudinal phacoemulsification and torsional phacoemulsification in moderate and hard cataracts. METHODS: Of 85 patients who had senile cataracts, 102 eyes were operated on using the Infiniti Vision System. Preoperative examinations (slit lamp examination, mean central corneal thickness, and central endothelial cell counts) were performed for each patient. Cataracts were subdivided into moderate and hard, according to the Lens Opacities Classification System III grading of nucleus opalescence (NO). Eyes in each cataract group were randomly assigned to conventional and torsional phaco-mode. Intraoperative parameters, including ultrasound time (UST), cumulative dissipated energy (CDE), and the balanced salt solution plus (BSSP) volume utilized were evaluated. Best corrected visual acuity (BCVA) was checked on postoperative day 30; mean central corneal thickness and central endothelial cell counts were investigated on postoperative days 7 and 30. RESULTS: Preoperative BCVA and mean grading of NO showed no difference in both groups. Preoperative endothelial cell count and central corneal thickness also showed no significant difference in both groups. In the moderate cataract group, the CDE, UST, and BSSP volume were significantly lower in the torsional mode than the longitudinal mode, but they did not show any difference in the hard cataract group. Torsional group showed less endothelial cell loss and central corneal thickening at postoperative day seven in moderate cataracts but showed no significant differences, as compared with the longitudinal group, by postoperative day 30. CONCLUSIONS: Torsional phacoemulsification showed superior efficiency for moderate cataracts, as compared with longitudinal phacoemulsification, in the early postoperative stage. The Korean Ophthalmological Society 2010-12 2010-11-23 /pmc/articles/PMC2992560/ /pubmed/21165231 http://dx.doi.org/10.3341/kjo.2010.24.6.336 Text en © 2010 The Korean Ophthalmological Society http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Kim, Dong-Hyun
Wee, Won-Ryang
Lee, Jin-Hak
Kim, Mee-Kum
The Comparison between Torsional and Conventional Mode Phacoemulsification in Moderate and Hard Cataracts
title The Comparison between Torsional and Conventional Mode Phacoemulsification in Moderate and Hard Cataracts
title_full The Comparison between Torsional and Conventional Mode Phacoemulsification in Moderate and Hard Cataracts
title_fullStr The Comparison between Torsional and Conventional Mode Phacoemulsification in Moderate and Hard Cataracts
title_full_unstemmed The Comparison between Torsional and Conventional Mode Phacoemulsification in Moderate and Hard Cataracts
title_short The Comparison between Torsional and Conventional Mode Phacoemulsification in Moderate and Hard Cataracts
title_sort comparison between torsional and conventional mode phacoemulsification in moderate and hard cataracts
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2992560/
https://www.ncbi.nlm.nih.gov/pubmed/21165231
http://dx.doi.org/10.3341/kjo.2010.24.6.336
work_keys_str_mv AT kimdonghyun thecomparisonbetweentorsionalandconventionalmodephacoemulsificationinmoderateandhardcataracts
AT weewonryang thecomparisonbetweentorsionalandconventionalmodephacoemulsificationinmoderateandhardcataracts
AT leejinhak thecomparisonbetweentorsionalandconventionalmodephacoemulsificationinmoderateandhardcataracts
AT kimmeekum thecomparisonbetweentorsionalandconventionalmodephacoemulsificationinmoderateandhardcataracts
AT kimdonghyun comparisonbetweentorsionalandconventionalmodephacoemulsificationinmoderateandhardcataracts
AT weewonryang comparisonbetweentorsionalandconventionalmodephacoemulsificationinmoderateandhardcataracts
AT leejinhak comparisonbetweentorsionalandconventionalmodephacoemulsificationinmoderateandhardcataracts
AT kimmeekum comparisonbetweentorsionalandconventionalmodephacoemulsificationinmoderateandhardcataracts