Abstract
Purpose:
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.
Methods:
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.
Results:
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.
Conclusions:
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.
Keywords: 479 cornea: clinical science •
550 imaging/image analysis: clinical •
484 cornea: stroma and keratocytes