About My Health Careers Internship MedBlogs Contact us
Medindia LOGIN REGISTER
Advertisement

Increase in Swelling of Retinas of Patients With Retinitis Pigmentosa With Iodine

by Himabindu Venkatakrishnan on July 22, 2014 at 12:37 PM
Font : A-A+

 Increase in Swelling of Retinas of Patients With Retinitis Pigmentosa With Iodine

A common complication of retinitis pigmentosa is cystoid macular edema (CME), causing swelling in the retina. Retinitis pigmentosa (RP) is a family of retinal diseases in which patients typically lose night and side vision first and then develop impaired central vision. CME can also decrease central vision. Current treatments for CME in RP are not always effective and can lead to adverse results.

Researchers from the Massachusetts Eye and Ear, Harvard Medical School, and Boston University School of Medicine tested whether the extent of retinal swelling due to CME was inversely related to dietary iodine intake in patients with RP and found that it was. This finding raises the possibility that an iodine supplement could help limit or reduce central foveal swelling in RP patients with CME.

Advertisement

Their results are presented online in the July issue of JAMA Ophthalmology. Past research performed on a previous population showed an inverse association between the presence of CME and reported iodine supplementation in RP patients. This finding and physiology research by others pointed to iodine as being worth investigating further. In the present experiment, the researchers performed a cross-sectional observational study of 212 nonsmoking patients 18 to 69 years of age who were referred to Mass. Eye and Ear for RP with visual acuity of no worse than 20/200 in at least one eye. They used optical coherence tomography to measure central foveal swelling due to CME in the patients.

Total dietary intake of iodine was estimated from multiple (preferably, 10) spot urine samples collected at home. The investigators found that the magnitude of central foveal swelling due to CME was inversely related to urinary iodine concentration when emphasizing data with more reproducible urinary iodine concentrations (p<.001) -- patients with the lowest urinary iodine levels tended to have retinas with the most swelling.
Advertisement

"Additional study is required to determine whether an iodine supplement can limit or reduce the extent of CME in patients with RP," said Michael A. Sandberg, Ph.D., lead author of the study and senior scientist in the Berman-Gund Laboratory for the Study of Retinal Degenerations at Massachusetts Eye and Ear and Associate Professor of Ophthalmology at Harvard Medical School.

Source: Eurekalert
Advertisement

Advertisement
News A-Z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Advertisement
News Category
What's New on Medindia
International Day of Persons with Disabilities 2021 - Fighting for Rights in the Post-COVID Era
Effect of Blood Group Type on COVID-19 Risk and Severity
Woman with Rare Spinal Cord Defect from Birth Sues Doctor
View all

Medindia Newsletters Subscribe to our Free Newsletters!
Terms & Conditions and Privacy Policy.

More News on:
Iodine Deficiency Disorder Blindness Facts Facial Swelling Symptom Evaluation Thoracic Outlet Syndrome Retinitis Pigmentosa Test Your Knowledge on Artificial Intelligence 

Recommended Reading
Eye Pain Symptom Evaluation
Eye pain usually follows trauma, eye infection or inflammation of the eye and the surrounding ......
Quiz on Eye Disorders
The gift of sight is very valuable; therefore it is necessary to take good care of our eyes. ......
Research 'Extraordinaire' To Restore Vision
UK scientists have discovered a treatment for blindness in mice by employing stem cell transplants...
LASIK Surgery – Interesting Facts
LASIK is a combined microsurgical and excimer laser procedure for correcting refractive errors of .....
Facial Swelling Symptom Evaluation
Facial swelling or swollen face may appear as a small swelling affecting a part of the face, or a ge...
Iodine Deficiency Disorder
To control IDD, the ‘National Goiter Control Program (NGCP)’ was launched which was later renamed as...
Retinitis Pigmentosa
Retinitis pigmentosa is an inherited degenerative disorder which affects retina’s ability to respond...
Thoracic Outlet Syndrome
Thoracic outlet syndrome (TOS) is a rare condition that occurs when blood vessels or nerves become c...

Disclaimer - All information and content on this site are for information and educational purposes only. The information should not be used for either diagnosis or treatment or both for any health related problem or disease. Always seek the advice of a qualified physician for medical diagnosis and treatment. Full Disclaimer

© All Rights Reserved 1997 - 2021

This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use