Lensometer

What is a Lensometer?

A lensometer, also known as a focimeter or vertometer, is an optical device used to measure the prescription of eyeglass lenses. It determines sphere, cylinder, axis, and sometimes prism values in lenses.

Key Features and Specifications of Lensometers

• Ensure it supports a wide diopter range (typically ±25D) to accommodate various prescriptions, including strong positive and negative lenses.
• Look for models with fine measurement resolution (e.g., 0.01D) to ensure accurate prescription verification.
• Choose a device capable of detecting and measuring prism correction, essential for patients with eye alignment...