FIELD: medicine. SUBSTANCE: device has optical area of lens 1 and three equidistant supporting members 2 in the form of closed loops, which ends are equidistantly attached to lens end face portion along its perimeter. The supporting members intersect each other at three points near the optical area of lens and are manufactured from flexible polypropylene thread without being heat-treated. EFFECT: lower risk of traumatic lesion. 1 dwg
Authors
Dates
1996-12-10—Published
1989-06-05—Filed