Optical Trial Lens Set with Plastic Rims and Adjustable Trial Fram

The 266-Piece Optical Trial Lens Set with Plastic Rims and Adjustable Trial Frame is a professional ophthalmic diagnostic kit designed for subjective refraction, visual acuity assessment and determining corrective lens prescriptions. The set contains positive and negative spherical lenses, cylindrical lenses, prism lenses and specialised optical accessories, each mounted in lightweight, colour-coded plastic rims for convenient identification and handling. Supplied in a protective carrying case, the trial lenses support accurate assessment of refractive errors, including myopia, hyperopia, astigmatism and presbyopia. Suitable for ophthalmology clinics, optometry centres, eye hospitals, optical shops and vision-testing facilities. Key Features & Specifications Feature / Parameter Typical Specification Product Type Optical Trial Lens Set and Frame Lens Rim Type Plastic Rim Total Lens Set 266 Pieces Lens Material Optical Glass Rim Material Lightweight Plastic Spherical Lenses 160 Pieces Positive Spherical Lenses 80 Pieces Negative Spherical Lenses 80 Pieces Spherical Power Range ±0.25D to ±20.00D Cylindrical Lenses 80 Pieces Positive Cylindrical Lenses 40 Pieces Negative Cylindrical Lenses 40 Pieces Cylinder Power Range ±0.25D to ±6.00D Prism Lenses 12 Pieces Prism Power Range Typically 0.50–10.00 Prism Dioptres Accessories 14 Pieces, including applicable cross-cylinder and accessory lenses Jackson Cross-Cylinder ±0.25D and ±0.50D, depending on kit Lens Rim Diameter Approximately 38 mm Clear Optical Aperture Approximately 25–26 mm Rim Colour Coding Red, Black and White Power Identification Marked Dioptre Values Lens Arrangement Organised by Power and Type Carrying Case Aluminium or Wooden Case Trial Frame Adjustable Frame; inclusion to be confirmed Pupillary Distance Adjustment Available on Compatible Trial Frames Axis Adjustment Rotatable Lens Holders on Compatible Frames Primary Function Subjective Refraction and Vision Testing