Eagle Eye Products EEP || Professional Optometry Testing Frame || Adjustable 180-Degree Scale Trail Frame

About this product

A Trial Lens Frame is a scientific instrument used by optometrists and ophthalmologists to hold trial lenses in front of a patient's eyes during an eye exam. It’s a part of the manual refraction process, which is used to find the correct glasses prescriptionLightweight and Durable ConstructionWhat it means: Most frames are made from aluminum, stainless steel, or high-grade plastic.Multiple Lens Slot System (Usually 3–4 per eye)What it means: You can insert several trial lenses at once in each eye’s section—like spherical, cylindrical, and prism lenses.Smooth Axis Rotation with Click Stops or Lock SystemWhat it means: When you rotate the cylinder lens, it clicks or locks at small intervals (often every 5°).Markings for Axis and DegreeWhat it means: The frame has clear scales and dials .