Description
What’s Included
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Reichert 11635 Plus Cylinder Phoroptor (Black or Silver finish based on inventory)
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Standard accessories (Reading rod with card holder, face shields, dust cover)
- 90-day warranty
Note: Mounting arm and floor stand are not included
Condition & Warranty
Used. This Reichert 11635 Plus Cylinder Phoroptor has been fully tested, thoroughly cleaned, and mechanically serviced to meet original factory tolerances. The internal lens wheels rotate smoothly without catching, the synchronized axis gears align perfectly, and the optical paths are completely clear of dust, haze, or film. All detents have a crisp, positive click. The chassis shows minor signs of cosmetic wear as expected for a used manual refraction instrument. Carefully calibrated before shipping. Covered by a 90-day warranty on parts and workmanship.
Reichert 11635 Plus Cylinder Phoroptor — Used with Synchronized Cross-Cylinders
The Reichert 11635 Ultramatic Rx Master Phoroptor is the undisputed world standard in manual subjective refraction. Famously engineered in the United States, this legendary instrument is celebrated by eyecare professionals worldwide for its unmatched mechanical feel, extreme operational durability, and smooth, maintenance-free performance. Utilizing a precision-machined internal gearing system, the 11635 ensures that every lens change is effortless and highly tactile.
This specific model is configured with a Plus Cylinder ($+$ Cyl) configuration, preferred by many classic refractionists and pediatric specialists. It features Reichert’s famous synchronized cross-cylinders, which automatically rotate to match the chosen cylinder axis dial, cutting down manual steps and reducing errors during astigmatism testing. With its legendary build quality and non-volatile mechanical construction, this used Phoroptor provides an extremely reliable, battery-free refraction platform designed to outlast multiple digital generations.
Research published in the National Library of Medicine underscores that manual refraction using standard-setting phoropters like the Reichert Ultramatic remains an essential and highly dependable clinical baseline, offering clinicians unparalleled tactile control and maximum flexibility when working with highly sensitive patients or subtle binocular imbalances.
Why Practices Choose the Reichert 11635 Phoroptor
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Synchronized Astigmatism Testing — The cross-cylinder loupe is geared directly to the cylinder axis knob, automatically rotating in perfect synchronization as you adjust the cylinder axis.
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Corrosion-Resistant Gearing Assembly — Built with self-lubricating, high-grade metals and composite gears to prevent structural sticking and maintain a smooth, frictionless dial feel.
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Classic Mechanical Reliability — Operates entirely without power supplies, computer monitors, or electronic software updates, ensuring zero downtime and decades of active service.
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Precision Vertex Measurement — Features a clear, high-contrast scale on both sides of the viewing port, allowing clinicians to verify the patient’s exact corneal distance from the rear lens surface.
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Comfortable Patient Ergonomics — Contoured brow rests and high-quality, washable silicone face shields prevent optical fogging and keep the patient steady during long exams.
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Comprehensive Diagnostic Lenses — Features a wide array of auxiliary lenses, including cross-hair targets, rotary prisms ($0\Delta$ to $20\Delta$), Maddox rods, and pinholes.
Clinical Applications
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High-Accuracy Manual Subjective Refraction establishing precise prescriptions for eyeglasses, prism corrections, and reading additions.
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Pediatric Accommodation Controls utilizing tactile, rapid dial rotations to establish natural binocular balance.
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Phoria and Strabismus Assessments leveraging the built-in rotary Risley prisms to isolate and measure motor imbalances.
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Legacy Diagnostic Lane Setups providing a premium, universally recognizable manual station that represents classic clinical professionalism.
Who This Is For
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Traditional Optometrists and Ophthalmologists who prefer the highly tactile, physical feedback and fast manual workflow of a classic dial-and-gear setup.
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Pre-Testing and Secondary Refraction Lanes needing a highly dependable, indestructible backup refracting head that never goes offline due to software glitches.
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Teaching Institutions and Academic Clinics looking for a standardized manual baseline to instruct students on the fundamental physics of subjective refraction.
Technical Specifications
| Specification | Detail |
| Model | Reichert 11635 Plus Cylinder Phoroptor |
| Type | Manual Refracting Biomicroscope |
| Cylinder Type | Plus Cylinder ($+$) |
| Sphere Range | -19.00D to +16.75D (in 0.25D steps; up to -28.75D to +22.75D with auxiliary lenses) |
| Cylinder Range | 0.00D to +6.00D (up to +8.00D with accessory lenses) |
| Axis Range | 0° to 180° continuous (in 5° steps) |
| Prism Power (Risley) | 0Δ to 20Δ per eye (continuous) |
| Vertex Distance | 13.75 mm (standard indicator) |
| Interpupillary Distance (IPD) | 48 mm to 75 mm |
| Condition | Used |
| Warranty | 90-day warranty on parts and workmanship |





