Gonioscopy with lens haptic (Video)

This gonioscopy video shows an interesting finding: the blue line is a haptic from an intraocular lens that has poked through the iris into the anterior chamber. Fortunately, the eye pressure was not affected, and there does not appear to be any inflammatory response (ie. you don’t see any PAS in this video).

Gonioscopy is difficult to photograph secondary to the magnification and large depth-of-field required. Hopefully, this video demonstrates the stereoscopic appearance of the trabecular meshwork.

Download this video

To download this video, right click on a link below and choose “Save Target As…”

goniohaptic.wmv (5.6 meg, Windows video file)


This photo was taken through a three-mirror lens at the slit-lamp, and shows the cornea-iris angle of the eye. The iris (brown) is on th left, with the inner cornea (white) on the right.
Gonio Angle lens
This gonioscopy photo shows a haptic from a three-piece cataract lens that has poked through the iris and is sitting in the iris-cornea angle. The haptic is blue and you can see it in the angle overlaying the trabecular meshwork.

Dr. Timothy Root is a practicing ophthalmologist and cataract surgeon in Daytona Beach, Florida. His books, video lectures, and training resources can be found at:



Please enter your comment!
Please enter your name here