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Abstract--Closed Angle Glaucoma causes an increase in fluid pressure in the eye due to decreased fluid flow between the iris and the
 

Summary: Abstract-- Closed Angle Glaucoma causes an increase in fluid
pressure in the eye due to decreased fluid flow between the iris and the
cornea. To diagnose Glaucoma, ultrasound images of the eye are taken
and a technician studies the images and takes measurements. This
process is time consuming, and results vary among technicians. In a
previous paper, we developed an image processing algorithm to extract
several key landmark features in the iris. In this paper, we extend this
algorithm to calculate the complete set of diagnostic parameters from
ultrasound biomicroscopy. A robust algorithm is described to calculate
the parameters which describe the thickness of iris; ID1, ID2, and ID3.
The method is tested on 89 clinical images and compared to the values
identified by the technician. Results indicate good agreement in 97% of
cases.
I. INTRODUCTION
Closed Angle Glaucoma causes an increase in fluid
pressure in the eye due to a decrease in fluid flow between
the iris and the cornea. One accurate technique to monitor
the progression of glaucoma and the patient's response to
medication is using ultrasound biomicrosopy; high-frequency
ultrasound images of the iris are taken. Images are currently

  

Source: Adler, Andy - Department of Systems and Computer Engineering, Carleton University

 

Collections: Computer Technologies and Information Sciences