Progressive change of optical coherence tomography scans in retinal degeneration slow mice.

Published on Sep 1, 2001in Archives of Ophthalmology
· DOI :10.1001/ARCHOPHT.119.9.1329
Naoichi Horio8
Estimated H-index: 8
Syu Kachi2
Estimated H-index: 2
+ 4 AuthorsYozo Miyake56
Estimated H-index: 56
Objective To study whether optical coherence tomography (OCT) scans correlate retinal histologic findings with the progression of retinal degeneration in retinal degeneration slow ( rds ) mice. Methods Sensory retinal thickness (SRT) and outer retinal thickness (ORT), representing photoreceptor cell layer, in temporal retina at a distance 1 to 2 disc diameters from the optic disc were measured using scan profile in OCT from 6 healthy mice (16 weeks old) and 2-week-old (n = 6), 6-week-old (n = 4), and 60-week-old(n = 2) rds mice. Histologic sections were obtained from Epon-embedded retinas from the corresponding location. Results Cross-sectional OCT images correlated to the corresponding histologic sections in each mouse. Both SRT and ORT of 2-week-old rds mice (150 ± 4 µm and 28 ± 4 µm, respectively) lacking photoreceptor outer segments were already shorter than those of healthy mice (174 ± 5 µm and 37 ± 6 µm, respectively) ( P rds mice ( P rds mice without a photoreceptor layer was remarkably reduced (120 ± 7 µm), and no ORT could be measured. Conclusion Our findings suggest a possible relationship between SRT and ORT, as measured by OCT, and histologic change in retinal degenerative diseases. Clinical Relevance The quantitative analysis obtained by OCT scans may have potential to detect progressive change in degenerative retina and may be used in studying human retinal degeneration.
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