Plastic Trial Lens Case – Ophthalmic Eye Refraction Testing Set

The Plastic Trial Lens Case is a professional ophthalmic diagnostic kit designed for subjective refraction testing and accurate assessment of refractive errors, including myopia, hyperopia and astigmatism. It contains precision optical trial lenses mounted in lightweight, colour-coded plastic rims for convenient identification and handling. The lenses are arranged in a protective carrying case, making the set suitable for eye hospitals, optometry clinics, ophthalmology centres and optical shops. Key Features & Specifications - Equipment Type: Plastic Trial Lens Case - Lens Material: Optical glass - Lens Rim Material: Durable plastic - Lens Configuration: 158, 232 or 266 pieces, depending on model - Spherical Lenses: Positive and negative lenses - Spherical Power Range: Typically ±0.12D to ±20.00D - Cylindrical Lenses: Positive and negative cylinder lenses - Cylindrical Power Range: Typically ±0.12D to ±6.00D - Prism Lenses: Available in selected configurations - Prism Power Range: Commonly 0.5–10 prism dioptres - Lens Outer Diameter: Approximately 38 mm on common models - Clear Aperture: Approximately 25–26 mm - Lens Identification: Clearly marked diopter powers - Rim Colour Coding: Red and black plastic rims, depending on manufacturer - Auxiliary Lenses: Jackson cross cylinder, pinhole, occluder, Maddox rod and filters, depending on configuration - Trial Frame: Included only if specified by supplier - Storage Case: Aluminium or leather carrying case - Power Requirement: None - Operation: Manual subjective refraction - Reusability: Reusable - Clinical Applications: Eye refraction testing, spectacle prescription assessment and vision examination - Suitable Facilities: Eye hospitals, optometry clinics, ophthalmology centres and optical laboratories