Loose Prism Set of 16 Gonio Lens Perfectly corrected for field curvature

Perfectly corrected for field curvature

High Magnification Viewing of the Posterior Pole

Welch Allyn Illuminator models:

from 35 cm to infinity

Loose Prism Set of 16 Gonio Lens Perfectly corrected for field curvatureIncludes Sizes: 1 2, 1, 2, 4, 6, 8, 10, 12, 15, 20, 25, 30, 35, 40, 45, 50, & a Red Lens. Use only mild soap and water to clean prisms! Alcohol will degrade the quality of the product over time. Guldens acrylic ophthalmic prisms have been re engineered to solve the problem of birefringence which can hinder their use in certain clinical applications. Our exclusive manufacturing process greatly reduces optical strain, producing prisms that virtually