Publication: Fluid temperature at the corneal endothelium during phacoemulsification: comparison of an ophthalmic viscosurgical device and balanced salt solution using the finite element method.
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Issued Date
2010
Resource Type
File Type
application/pdf
ISSN
14230259
Other identifier(s)
2-s2.0-73649122497
Rights Holder(s)
Scopus
Bibliographic Citation
Ophthalmic research. Vol 43, No.4 (2010), p.173-178
Suggested Citation
Reepolmaha S., Limtrakarn W., Uthaisang-Tanechpongtamb W., Dechaumphai P. Fluid temperature at the corneal endothelium during phacoemulsification: comparison of an ophthalmic viscosurgical device and balanced salt solution using the finite element method.. Ophthalmic research. Vol 43, No.4 (2010), p.173-178. doi:10.1159/000272020 Retrieved from: https://hdl.handle.net/20.500.14740/7646
Abstract
PURPOSE: The purpose of this study was to estimate and compare the temperatures of two different anterior chamber solutions at the corneal endothelial level during phacoemulsification. An ophthalmic viscosurgical device (OVD) and balanced salt solution (BSS) were compared using the finite element method (FEM). MATERIALS AND METHODS: The thermal properties of an OVD (IAL-F) and BSS were studied in an experimental setting. A computer-aided design model of ocular anatomy was created in two dimensions. The phaco needle was considered to be the only source of heat generation. Then, the FEM was used to demonstrate the transient temperature distribution in the two ocular models at 10, 20, 30, 40, 50 and 60 s. In these models, the anterior chamber was filled with IAL-F (IAL-F model) or BSS (BSS model). RESULTS: The heat generation rate of the phaco needle was 0.0004 cal/s/mm(2). The maximum corneal endothelial temperatures for the two models at 60 s were 52.67 and 41.57 degrees C, respectively. The experimental IAL-F model showed fewer changes in temperature for any given time and location. At larger distances from the heat source, less temperature variation was detected. CONCLUSION: Phacoemulsification is a potential heat-generating procedure performed between the delicate anterior chamber structures. During this procedure, IAL-F protects the endothelium against heat better than BSS. Copyright 2009 S. Karger AG, Basel.
Subject(s)
Acetic acid derivative
BSS solution
Eye drops
Mineral
Sodium chloride
Viscoelastic substance
Article
Body temperature
Chemistry
Comparative study
Computer simulation
Cornea endothelium
Drug combination
Finite element analysis
Heat
Human
Metabolism
Phacoemulsification
Acetates
Body Temperature
Computer Simulation
Drug Combinations
Endothelium, Corneal
Finite Element Analysis
Hot Temperature
Humans
Minerals
Ophthalmic Solutions
Phacoemulsification
Sodium Chloride
Viscoelastic Substances
BSS solution
Eye drops
Mineral
Sodium chloride
Viscoelastic substance
Article
Body temperature
Chemistry
Comparative study
Computer simulation
Cornea endothelium
Drug combination
Finite element analysis
Heat
Human
Metabolism
Phacoemulsification
Acetates
Body Temperature
Computer Simulation
Drug Combinations
Endothelium, Corneal
Finite Element Analysis
Hot Temperature
Humans
Minerals
Ophthalmic Solutions
Phacoemulsification
Sodium Chloride
Viscoelastic Substances