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Yukiko Morita, Yamaguchi University Graduate School of Medicine; Infrared imaging for detecting intraocular conditions in edematous corneas. Invest. Ophthalmol. Vis. Sci. 2014;55(13):2480.
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© ARVO (1962-2015); The Authors (2016-present)
To investigate the imaging method for detecting intraocular structural changes in the eye with stromal edematous corneas, we applied infrared camera for observing intraocular structure.
Ten of subjects (5 males and 5 females, mea age 59.3+/-31.5 y-o, range 2-87 y-o) with corneal stromal edema (5 of bullous keratopathy, 3 of Peters’ anomaly and 2 of failure graft) was enrolled in this study. The infrared observation mode and white-light observation mode of an infrared camera Meibopen (JFC, Tokyo, Japan) was applied to observe intraocular structure.
Through the edematous corneas, it was difficult to observe intraocular structure such as iris shapes, pupil shapes or existence of iridectomy at peripheral iris under white-light observation mode. Under using infrared observation mode enabled us to visualize the existence of iridectomy in 2 eyes out of 5 bullous keratopathy corneas, in 1 eyes out of 2 failured graft. In all subjects, the shape of pupil was observable. Especially in Peters’ anomaly subjects, the adhered iris was detectable in all Peters’ subjects.
Infrared camera was successfully applied to detect the intraocular structure such as the existence of iridectomy or pupil shape which were not detectable by using white-light observation. Infrared observation was more effective for detecting abnormal structure in congenital corneal opacities.
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