Ultrasound techniques for lens hardness characterization: A comparison study

Ultrasound techniques for lens hardness characterization: A comparison study

Cataract affects more than 20 million people worldwide and is the leading cause of vision loss. Currently, the phacoemulsification is the most used procedure to extract cataract and recover visual acuity. Optimal phacoemulsification energy is demanded for safety cataract removal. It is well establis...

Full description

Saved in:
Bibliographic Details
Published in:2012 IEEE International Ultrasonics Symposium pp. 2376 - 2379
Main Authors: Jesus, Danilo, Caixinha, Miguel, Santos, Mário, Santos, Jaime
Format: Conference Proceeding
Language:English
Published: IEEE 01-10-2012
Subjects:
Acoustics
Attenuation
Frequency dependence
lens hardness
Lenses
statistical analysis
Time-frequency analysis
Transducers
Ultrasonic imaging
ultrasounds
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Cataract affects more than 20 million people worldwide and is the leading cause of vision loss. Currently, the phacoemulsification is the most used procedure to extract cataract and recover visual acuity. Optimal phacoemulsification energy is demanded for safety cataract removal. It is well established that the energy value is determined by the cataract hardness. In this study twenty porcine eyes were used as experimental samples. Cataract was induced by an ethanol:2-propanol:formalin solution. A 25 MHz focused transducer has been used to estimate the ultrasound velocity and attenuation. Statistical analysis was performed to compare the different used methodologies and to correlate the different ultrasound parameters with different stages of cataract formation (lens hardness).
ISBN:9781467345613
146734561X
ISSN:1051-0117
DOI:10.1109/ULTSYM.2012.0594