Research Papers: General

Modeling of vision loss due to vitreous hemorrhage by Monte Carlo simulation

[+] Author Affiliations
Tarek A. Al-Saeed

Helwan University, Faculty of Engineering, Biomedical Engineering Department, 1 Sherif Street, Helwan, 11792, Cairo, Egypt

Sayed Y. El-Zaiat

Ain-Shams University, Faculty of Science, Physics Department, Abbassia, 11566, Cairo, Egypt

J. Biomed. Opt. 19(8), 085009 (Aug 28, 2014). doi:10.1117/1.JBO.19.8.085009
History: Received April 3, 2014; Revised August 8, 2014; Accepted August 8, 2014
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Abstract.  Vitreous hemorrhage is the leaking of blood into the vitreous humor which results from different diseases. Vitreous hemorrhage leads to vision problems ranging from mild to severe cases in which blindness occurs. Since erythrocytes are the major scatterers in blood, we are modeling light propagation in vitreous humor with erythrocytes randomly distributed in it. We consider the total medium (vitreous humor plus erythrocytes) as a turbid medium and apply Monte Carlo simulation. Then, we calculate the parameters characterizing vision loss due to vitreous hemorrhage. This work shows that the increase of the volume fraction of erythrocytes results in a decrease of the total transmittance of the vitreous body and an increase in the radius of maximum transmittance, the width of the circular strip of bright area, and the radius of the shadow area.

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© 2014 Society of Photo-Optical Instrumentation Engineers

Citation

Tarek A. Al-Saeed and Sayed Y. El-Zaiat
"Modeling of vision loss due to vitreous hemorrhage by Monte Carlo simulation", J. Biomed. Opt. 19(8), 085009 (Aug 28, 2014). ; http://dx.doi.org/10.1117/1.JBO.19.8.085009


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