Ultrasound Quantitative Evaluation of Human Eye Cataract

Ultrasound Quantitative Evaluation of Human Eye Cataract

A technique to improve an eye cataract early detection and quantitative evaluation of maturity using ultrasound was investigated. A broadband coherent signal, backscattered from an eye lens tissue, was digitized, recorded and processed. A new parameter – lens quality was proposed for the human eye cataract quantitative evaluation. Lens quality reflects two phenomena of ultrasound interaction wi...

Evaluation of Ultrasound Attenuation Characteristics of Human Cataract

Cataract is very frequent disease of human eye and the diagnosis of this disease is not difficult. However, it is important to describe it quantitatively, but it is difficult using only the slit lamp. Ultrasound examinations are widely used in ophthalmology. Piezoelectric crystals generate ultrasound waves of 5–50 MHz. Short pulses of 2 to 3 cycles are sent from transducer into the eye. These p...

To Estimate the Axial Elastic Modulus of Eye and Posterior Wall Thickness in Healthy Human Eye by Ultrasound Images and their Relation with Age and Gender

Introduction: Based on the invasive studies it has been shown that factors such as age, the progress of eye disorders, lens fibers compression and the biochemical changes of ocular matrix alter the physical characteristics and elastic properties of eye. In this study, a noninvasive method of estimating human eye elasticityis proposed and its relation with age and gender is evaluated using ultra...

Cataract Surgery and Dry Eye

Ultrasound of the eye

Ultrasound of the eye is not an examination that most sonographers are commonly asked to perform, however it may be requested from time to time, particularly in regional or rural areas. This paper hopes to assist the sonographer to gain an understanding of the anatomical and sonographic anatomy of the eye in order to diagnose several common pathologies.