Vintage American Optical Phoropter Lens and Cylinder Kits, 10 Lenses of Various Sizes (See Pictures) --- Free Shipping

A Phoropter Lens Cylinder refers to the cylindrical lens component within a phoropter (refractor), a device used in eye exams to measure and correct astigmatism by adding specific lens power (cylinder power) at a particular orientation (axis) to achieve clear vision, refining the prescription alongside spherical power. Phoropters contain various lenses, including these cylinders, which an eye doctor rotates and adjusts to find the most accurate power for blurry vision caused by eye shape irregularities. 

Key Concepts:

How it Works in an Exam:

1.      Astigmatism Testing: During an exam, the eye doctor uses the phoropter's built-in cylinder lenses to find the right strength (e.g., -1.25) and angle (e.g., 90 degrees) for your astigmatism.

2.      Jackson's Cross Cylinder (JCC): A specific technique using paired lenses within the phoropter helps fine-tune the axis and power of the cylinder.

3.      Refining the Rx: By flipping between different cylinder and axis combinations, the doctor finds what makes your vision sharpest and most comfortable. 

Essentially, the "phoropter lens cylinder" is the specific cylindrical lens element inside the phoropter that addresses the blur from astigmatism, a common refractive error. 


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The Vintage American Optical Phoropter Lens and Cylinder Kits include a total of 10 lenses, specifically designed for ophthalmology use. These lenses are from the renowned brand American Optical, known for their quality and precision in the field of optical equipment. Made in the United States, this kit is perfect for professionals in the medical and lab equipment industry seeking reliable and durable lenses for their phoropters and manual refractors.