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Accession number;01A0189819
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| Title;Usefulness of Frequency Doubling Technology as a Screening Test for Glaucoma. |
| Author;
SAITO MAMORU
(Tokyo Medical College, Hachioji Medical Center)
YAMASHIRO HIROKO
(Tokyo Medical College)
MATSUMOTO HIROMI
(Tokyo Medical College)
SHIRATO SHIROAKI
(Tokyo Medical College, Hachioji Medical Center)
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Journal Title;Journal of Japanese Ophthalmological Society
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Journal Code:Z0666A
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ISSN:0029-0203
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VOL.105;NO.1;PAGE.20-23(2001)
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| Figure&Table&Reference;FIG.2, TBL.1, REF.16 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;Purpose: To evaluate the usefulness of frequency doubling technology (FDT) as a screening test. Material and Methods: One-hundred and six eyes of 106 patients with primary open-angle glaucoma and 66 eyes of 66 normal subjects were examined in a screening program using FDT. The test results were evaluated by comparison with the results obtained by Humphrey Field Analyzer (HFA) and/or the appearance of the optic disk. Results: The sensitivity and specificity of FDT regarding the existence of abnormal points worse than mild relative loss were 88% and 95%, respectively. At least one abnormal point worse than mild relative loss in FDT was detected in over 90% of the abnormal hemifields equal to or worse than stage 2 of Aulhorn's classification modified by Greve, but it was 55% and 65% in stages 0-1 and 1, respectively. Nerve fiber layer defects were found in 67% of the hemifields, which was judged as abnormal in FDT but normal in HFA. Conclusion: FDT is useful for detection of glaucomatous visual field defects in stage 2 or worse. FDT may detect early glaucomatous visual field defects overlooked in HFA testing. (author abst.) |
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