A Comparative Study of Central Corneal Thickness and Endothelial Cell Density after Phacoemulsification by ‘Phaco-chop’ and ‘Divide and Conquer’ Techniques
Introduction: Phacoemulsification was introduced by Kelman in 1967. It is one of the most important innovations in ophthalmology. This has now been accepted as gold standard surgical procedure for management of cataract. Divide and conquer technique, described by Gimbel, was the first nucleofrac...
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doaj-a8278c70fc5740d6b83db252f79a59a32021-05-18T10:46:33ZengJCDR Research and Publications Private LimitedJournal of Clinical and Diagnostic Research2249-782X0973-709X2020-09-01149NC05NC1410.7860/JCDR/2020/45010.14065A Comparative Study of Central Corneal Thickness and Endothelial Cell Density after Phacoemulsification by ‘Phaco-chop’ and ‘Divide and Conquer’ TechniquesMadhumita prasad0V sachin Daigavane1Senior Resident, Department of Ophthalmology, Datta Meghe Institute of Medical Sciences, Wardha, Maharashtra, India.Professor and Head, Department of Ophthalmology, Datta Meghe Institute of Medical Sciences, Wardha, Maharashtra, India.Introduction: Phacoemulsification was introduced by Kelman in 1967. It is one of the most important innovations in ophthalmology. This has now been accepted as gold standard surgical procedure for management of cataract. Divide and conquer technique, described by Gimbel, was the first nucleofractis cracking technique developed. Phoc-chop technique was presented by Kunihiro Nagahara in 1993 at the meeting of America Society of Cataract and Refractive Surgery. Aim: To compare the Central Corneal Thickness (CCT) and endothelial cell density after phacoemulsification by ‘phacochop’ and ‘divide and conquer’ techniques. Materials and Methods: The study included 100 patients divided into two groups, each including 50 patients; Group A, where Divide and Conquer was performed, and in Group B Phacochop was performed. The mean Absolute PhacoTime (APT), mean Endothelial Cell Count (ECC), mean Endothelial Cell Loss (ECL), corneal thickness and the visual acuity were reported in the two groups both preoperative and postoperative. Results: The mean APT in group A was 27.12±10.15 seconds, and in group B was 16.58±5.11 seconds (p=0.0001). The mean ECC at sixth week postoperative in group A was 2102. 14 cells/ mm2 and in group B it was 2365.38 cells/mm2 (p=0.003). There was statistically significant ECL following sixth week postoperatively 16.22% in divide and conquer group and 8.51% in phaco-chop group (p-value=0.0001). A significant increase in the CCT was observed at the immediate postoperative week among the two studied groups; 3.16% in group A and 2.34% in group B, which was statistically significant. The postoperative CCT pachymetry values were returned to near preoperative values at one and a half months postoperative. Conclusion: The phaco-chop technique utilises less phaco time and energy without significant effect on the final surgical outcome. Significant and equal ECL occurs after the two studied techniques. APT and nuclear grade have a positive correlation with higher ECL. CCT increases significantly and equally postoperatively following the two techniques.https://jcdr.net/articles/PDF/14065/45010_CE[Ra1]_F(SHU)_PF1(AB_SL)_PFA(AB_SL)_GC(A_SL)_PN(SL).pdfabsolute phaco timecataractendothelial cell count |
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language |
English |
format |
Article |
sources |
DOAJ |
author |
Madhumita prasad V sachin Daigavane |
spellingShingle |
Madhumita prasad V sachin Daigavane A Comparative Study of Central Corneal Thickness and Endothelial Cell Density after Phacoemulsification by ‘Phaco-chop’ and ‘Divide and Conquer’ Techniques Journal of Clinical and Diagnostic Research absolute phaco time cataract endothelial cell count |
author_facet |
Madhumita prasad V sachin Daigavane |
author_sort |
Madhumita prasad |
title |
A Comparative Study of Central Corneal Thickness and Endothelial Cell Density after Phacoemulsification by ‘Phaco-chop’ and ‘Divide and Conquer’ Techniques |
title_short |
A Comparative Study of Central Corneal Thickness and Endothelial Cell Density after Phacoemulsification by ‘Phaco-chop’ and ‘Divide and Conquer’ Techniques |
title_full |
A Comparative Study of Central Corneal Thickness and Endothelial Cell Density after Phacoemulsification by ‘Phaco-chop’ and ‘Divide and Conquer’ Techniques |
title_fullStr |
A Comparative Study of Central Corneal Thickness and Endothelial Cell Density after Phacoemulsification by ‘Phaco-chop’ and ‘Divide and Conquer’ Techniques |
title_full_unstemmed |
A Comparative Study of Central Corneal Thickness and Endothelial Cell Density after Phacoemulsification by ‘Phaco-chop’ and ‘Divide and Conquer’ Techniques |
title_sort |
comparative study of central corneal thickness and endothelial cell density after phacoemulsification by ‘phaco-chop’ and ‘divide and conquer’ techniques |
publisher |
JCDR Research and Publications Private Limited |
series |
Journal of Clinical and Diagnostic Research |
issn |
2249-782X 0973-709X |
publishDate |
2020-09-01 |
description |
Introduction: Phacoemulsification was introduced by Kelman in
1967. It is one of the most important innovations in ophthalmology.
This has now been accepted as gold standard surgical procedure
for management of cataract. Divide and conquer technique,
described by Gimbel, was the first nucleofractis cracking
technique developed. Phoc-chop technique was presented by
Kunihiro Nagahara in 1993 at the meeting of America Society of
Cataract and Refractive Surgery.
Aim: To compare the Central Corneal Thickness (CCT) and
endothelial cell density after phacoemulsification by ‘phacochop’ and ‘divide and conquer’ techniques.
Materials and Methods: The study included 100 patients divided
into two groups, each including 50 patients; Group A, where
Divide and Conquer was performed, and in Group B Phacochop was performed. The mean Absolute PhacoTime (APT),
mean Endothelial Cell Count (ECC), mean Endothelial Cell Loss
(ECL), corneal thickness and the visual acuity were reported in
the two groups both preoperative and postoperative.
Results: The mean APT in group A was 27.12±10.15 seconds,
and in group B was 16.58±5.11 seconds (p=0.0001). The mean
ECC at sixth week postoperative in group A was 2102. 14 cells/
mm2
and in group B it was 2365.38 cells/mm2
(p=0.003).
There was statistically significant ECL following sixth week
postoperatively 16.22% in divide and conquer group and 8.51%
in phaco-chop group (p-value=0.0001). A significant increase in
the CCT was observed at the immediate postoperative week
among the two studied groups; 3.16% in group A and 2.34% in
group B, which was statistically significant. The postoperative
CCT pachymetry values were returned to near preoperative
values at one and a half months postoperative.
Conclusion: The phaco-chop technique utilises less phaco
time and energy without significant effect on the final surgical
outcome. Significant and equal ECL occurs after the two
studied techniques. APT and nuclear grade have a positive
correlation with higher ECL. CCT increases significantly and
equally postoperatively following the two techniques. |
topic |
absolute phaco time cataract endothelial cell count |
url |
https://jcdr.net/articles/PDF/14065/45010_CE[Ra1]_F(SHU)_PF1(AB_SL)_PFA(AB_SL)_GC(A_SL)_PN(SL).pdf |
work_keys_str_mv |
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