Keeler Professional 2.8V Dry Cell Streak Retinoscope – Ophthalmic Eye Refraction Instrument

The Keeler Dry Cell Retinoscope is a precision handheld ophthalmic diagnostic instrument designed for objective assessment of refractive errors, including myopia, hyperopia and astigmatism. It uses a controlled light beam to observe retinal reflex movement, enabling eye care professionals to determine refractive status without relying entirely on patient responses. Featuring precision optics, adjustable illumination and an ergonomic dry-cell battery handle, the instrument is suitable for ophthalmologists, optometrists, eye hospitals and vision care clinics. Key Features & Specifications - Equipment Type: Handheld Streak Retinoscope - Brand: Keeler - Model: Professional Streak Retinoscope - Country of Manufacture: United Kingdom - Operating Voltage: 2.8V - Power Source: Replaceable dry-cell batteries - Battery Type: AA batteries with compatible dry-cell handle - Illumination: Halogen bulb or LED, depending on configuration - Beam Type: Adjustable streak beam - Beam Rotation: 360° rotation - Beam Control: Magnetic rotation and convergence control - Focusing Mechanism: Adjustable beam convergence and divergence - Neutralisation Check: Integrated patented neutralisation check - Aperture Sizes: 4 mm and 1.7 mm on compatible Professional models - Brightness Control: Adjustable illumination intensity - Optical System: Precision retinoscopy optics - Handle Design: Ergonomic handheld grip - Spectacle Compatibility: Interchangeable spectacle bar pad - Portability: Cordless handheld operation - Rechargeable: No, for standard dry-cell configuration - Power Connection: No external power connection required during use - Clinical Applications: Objective refraction, refractive error assessment and eye examinations - Suitable For: Eye hospitals, optometry clinics, ophthalmology centres and vision screening facilities - Accessories: Retinoscope head, dry-cell handle and optional protective case or spare bulb, depending on package