Opthalmic RAF Ruler

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The ASF Ophthalmic RAF Ruler (Royal Air Force Rule) is a 50 cm manual vision testing tool for measuring convergence and accommodation. It features a sliding four-sided cube, 1 mm increment markings, and is lightweight, durable, and portable for clinical and hospital use.

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Description Specification

The Ophthalmic RAF Ruler (Royal Air Force Rule) by ASF Universal is a manual diagnostic instrument designed for evaluating binocular vision functions, specifically convergence and accommodation. This precision tool is widely used by ophthalmologists and optometrists to assess both objective and subjective convergence in patients, helping to identify conditions such as convergence insufficiency, accommodative dysfunction, and binocular vision anomalies. It provides a simple yet highly effective method for testing near and distance visual performance during routine eye examinations.The RAF Ruler features a 50 cm long measurement scale, calibrated in 1 mm increments, ensuring fine accuracy and repeatable readings. It includes a sliding mechanism that supports a rotating four-sided cube, each side containing different fixation targets used to measure accommodation and convergence levels. This allows practitioners to assess the patient’s ability to focus and align their eyes effectively across various distances. The design supports a complete evaluation of binocular vision flexibility, making it a valuable tool for both diagnostic and therapeutic applications.

Constructed from lightweight, durable materials, the ASF RAF Ruler is easy to handle and highly portable, ideal for use in clinics, hospitals, and optometry practices. Its compact, ergonomic design ensures comfortable operation for both practitioner and patient. Combining accuracy, portability, and practicality, this RAF Ruler remains a trusted standard in ophthalmic and optometric testing for visual function and binocular coordination.

Specifications of Opthalmic RAF Ruler

Shipping Weight	0.5 kg
Shipping Dimensions	60 × 0.9 × 60 cm
Type	Manual Binocular Vision Assessment Tool
Length	50 cm
Graduation	1 mm Increments
Structure	Slider with Rotating Four-Sided Cube
Measurement Functions	Convergence & Accommodation (Objective & Subjective)
Material	Lightweight & Durable Plastic/Metal Composite