Item description from the seller

3 Three Mirror Gonioscope Gonio Lens Black With  Case

3 Mirror Gonioscope Lens / Three Mirror Gonio Lens Indian Black Color Ophthalmic Diagnostic Lens

This lens has three mirrors angled at 59 deg, 66 deg and 73 deg and arranged at 120 deg intervals to permit viewing of the fundus and anterior chamber angle. The posterior pole is also observable through the central axis of the lens.

· Made in Glass

· Contact medium required.