Purpose:
To present novel noncontact meibography with anterior segment optical coherence tomography(OCT) which is widely used in clinics for the anterior segment (cornea, anterior chamber angle, etc.) and compare the results with pre-existing infrared meibography.
Methods:
This research was done at the Seoul St. Mary’s Hospital with two volunteers. Pre-existing infrared meibography was done on the subjects and photographs of the meibomian gland with the anterior segment OCT were taken again. With the anterior segment OCT, a tomogram of the meibomian gland could be taken and a picture of the whole meibomian gland could be taken from the infrared images for monitoring.
Results:
The resolution of the pre-existing infrared meibography was a pixel size of 640x480. In the anterior segment OCT, the meibomian glands were clearly identified just beneath the palpebral conjunctiva. The infrared images for monitoring of OCT was no problem in grading the meibomian gland. The resolution was 239x178 or 129x95 pixels depending on the save option of the photograph.
Conclusions:
This novel meibography using anterior OCT yielded meibomian gland tomogram without any additional equipment and overall infrared meibography was possible for grading. We think this new technique will be useful in clinics for MGD(meibomian gland dysfunction), etc.
Keywords: imaging methods (CT, FA, ICG, MRI, OCT, RTA, SLO, ultrasound)