ASF Loose Prism

The ASF Loose Prism set is a diagnostic tool designed for ophthalmic examinations, providing a comprehensive range of diopter values for assessing various binocular vision conditions. This manual set is constructed from transparent glass with a triangular design, ensuring clear optical properties for accurate measurements.

This 11-piece set is specifically utilized in clinical settings for the diagnosis and monitoring of phorias and squints, which aids in improving the accuracy of estimations. It is also instrumental in evaluating fusional reserves, thereby assisting in the diagnosis of binocular vision problems. The prisms are designed for ease of handling and portability.

Key Features : 

Diagnostic parameters measured include 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, and 60 diopters, provided as an 11-piece set. [cite: SKU]
Clinical applications encompass the assessment of phorias, squints, and fusional reserves to aid in the diagnosis of binocular vision problems. [cite: SKU]
Ophthalmic bar prisms, such as this manual device, are classified as Class 1 devices and are exempt from 510(k) premarket notification by the FDA.