Category Ophthalmic Instruments

ASF Trial Lens Set Red & Black

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The ASF Trial Lens Set is a 226-piece ophthalmic refraction kit featuring glass lenses mounted in color-coded metal rims (red for negative, black for positive). Organized in a yellow felt–lined wooden box, it includes spherical, cylindrical, prism, and accessory lenses for accurate vision testing.

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Description Specification

The ASF Trial Lens Set is a comprehensive and precision-crafted ophthalmic diagnostic kit designed to determine a patient’s refractive error accurately. Containing a total of 226 high-quality lenses, this set is an essential tool for optometrists, ophthalmologists, and vision technicians engaged in clinical refraction and prescription testing. Each lens is carefully manufactured from optical-grade glass to ensure superior transparency, accuracy, and consistency in results, allowing for precise evaluation of visual parameters such as myopia, hyperopia, astigmatism, and prism deviations.The lenses are securely mounted in durable metal rims, which are color-coded—red for negative and black for positive lenses—to facilitate quick identification and efficient workflow during testing. The set includes an extensive selection of spherical and cylindrical lenses, along with prisms and accessory lenses, enabling complete refraction assessments for both adults and pediatric patients. This structured design ensures easy handling, durability, and long-term optical reliability, even under frequent clinical use.

All 226 lenses are meticulously organized in a polished wooden box lined with bright yellow felt, providing both protection and aesthetic appeal. The interior compartments keep each lens securely positioned to prevent scratches or misplacement. Combining functionality, precision, and professional craftsmanship, the ASF Trial Lens Set serves as a fundamental diagnostic instrument in hospitals, eye clinics, and optometry training institutions worldwide.

Specifications of ASF Trial Lens Set Red & Black

Shipping Weight	5 kg
Shipping Dimensions	60 × 40 × 10 cm
Type	Ophthalmic Refraction Testing Kit
Total Lenses	226 Pieces
Lens Material	Optical Glass
Lens Mount	Metal Rims (Red – Negative / Black – Positive)
Lens Types	Spherical, Cylindrical, Prisms, Accessory Lenses
Box Material	Wooden Box with Yellow Felt Lining