Linked Life Data

3428407

Source:http://linkedlifedata.com/resource/pubmed/id/3428407

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1988-3-23
pubmed:abstractText
Because the results of various vision tests and diagnostic methods are influenced by the amount of light transmitted by the lens, it would be useful to quantify changes in transmittance. We have developed a new method capable of following these changes objectively and quantitatively. The method is based on an increasing loss of fluorescence emitted by the lens substance as the probing volume is located more posteriorly along the lens axis. The loss of fluorescence is quantified by a parameter called the fluorescence reading ratio (FRR). In the present study, performed on postmortem human lenses, we evaluated the validity of our proposed in vivo method by comparing it with measurements of lens transmittance by spectrophotometry. The correlation of FRR with the transmittance between 420- and 500 nm (r greater than 0.7, P less than 0.015) indicates that the measurement of FRR can provide information on the transmittance at these wavelengths. In addition, a correlation was found between age and transmittance at 440 nm (r = 0.93, P less than 0.001) and FRR (r = 0.88, P less than 0.001).
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0014-4835
pubmed:author
pubmed:issnType
Print
pubmed:volume
45
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
969-76
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Evaluation of an objective method for the in vivo measurement of changes in light transmittance of the human crystalline lens.
pubmed:affiliation
Department of Ophthalmology, University of Illinois College of Medicine, Chicago 60612.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.