A new multipurpose goniolens

K. Mizuno
Hirano General Hospital, Gifushi, Japan.

A new goniolens, called the "trabeculens," provides x 1.6 magnification and enhanced resolution of the trabecular meshwork by means of a new optical system that consists of a 30-diopter convex contact lens, hollow funnel, and four mirrors set at 62 degrees angles to one another. The trabeculens can also be used for laser trabeculoplasty, with the addition of an indentor, and for laser iridectomy, with the addition of a 20-diopter planoconvex button lens.