266-Piece Metal Rim Trial Lens Set with Adjustable Trial Frame

The 266-Piece Metal Rim Trial Lens Set with Adjustable Trial Frame is a professional ophthalmic diagnostic kit designed for subjective refraction, visual acuity assessment and determining corrective lens prescriptions. The kit features precision optical glass lenses mounted in durable metal rims, including positive and negative spherical lenses, cylindrical lenses, prism lenses and specialised optical accessories. The lenses are systematically arranged in a protective carrying case for convenient identification, storage and transportation. Designed for optometrists and ophthalmologists, it supports the assessment of refractive errors such as myopia, hyperopia, astigmatism and presbyopia. Suitable for eye hospitals, optometry clinics, optical centres and vision-testing facilities. Key Features & Specifications Feature / Parameter Typical Specification Product Type Optical Trial Lens Set and Frame Lens Set Quantity 266 Pieces Rim Material Metal Lens Material Optical Glass Spherical Lenses 160 Pieces Positive Spherical Lenses 80 Pieces Negative Spherical Lenses 80 Pieces Spherical Power Range Approximately ±0.12D to ±20.00D Cylindrical Lenses 80 Pieces Positive Cylindrical Lenses 40 Pieces Negative Cylindrical Lenses 40 Pieces Cylinder Power Range Approximately ±0.12D to ±6.00D Prism Lenses 12 Pieces Prism Power Range Typically 0.5–10 Prism Dioptres Auxiliary Lenses 14 Pieces Cross-Cylinder Lenses Typically ±0.25D and ±0.50D Lens Outer Diameter Approximately 38 mm Clear Optical Aperture Approximately 36 mm Rim Colour Coding Red, Black or Silver Lens Power Identification Clearly Marked Dioptre Values Trial Frame Adjustable Frame; inclusion to be confirmed Pupillary Distance Adjustment Depends on Trial Frame Axis Adjustment Rotatable Lens Holders on Compatible Frames Carrying Case Protective Aluminium Case Case Lock Combination or Mechanical Lock Lens Storage Organised Compartments with Power Labels Operating Mechanism Manual Electrical Requirement None Primary Application Subjective Refraction Suitable Facilities Eye Hospitals, Optometry Clinics and Optical Centres