15 Ophthalmological Marvels That Make Your Eyesight as Clear as Your Hindsight

They may look as ridiculous as they sound but Phoropters are essential eye-doctoring devices. These overgrown binoculars have helped optometrists measure an individual's refractive error, more commonly known as your eyeglass prescription, since the 19th Century. Our friends at Oobject have collected the very best examples of phoropters since the Victorian Era.

When you're done looking through these, check out these submarine-less periscopes and a dozen bespectacled architects.

15 Ophthalmological Marvels That Make Your Eyesight as Clear as Your Hindsight

Rodenstock Phoropter

15 Ophthalmological Marvels That Make Your Eyesight as Clear as Your Hindsight

Reichert Model 11625 Ultramatic Phoropter

15 Ophthalmological Marvels That Make Your Eyesight as Clear as Your Hindsight

Classic Bausch and Lomb Phoropter

15 Ophthalmological Marvels That Make Your Eyesight as Clear as Your Hindsight

Reichert Plus Cylinder Phoroptor

15 Ophthalmological Marvels That Make Your Eyesight as Clear as Your Hindsight

Phoropter on aircraft carrier USS John F. Kennedy

15 Ophthalmological Marvels That Make Your Eyesight as Clear as Your Hindsight

Remote vision automated wireless phoropter

15 Ophthalmological Marvels That Make Your Eyesight as Clear as Your Hindsight

Phoropter in action

15 Ophthalmological Marvels That Make Your Eyesight as Clear as Your Hindsight

Vintage 1930s Phoropter

15 Ophthalmological Marvels That Make Your Eyesight as Clear as Your Hindsight

Contemporary electronic phoropter

15 Ophthalmological Marvels That Make Your Eyesight as Clear as Your Hindsight

Pink Bausch and Lomb Phoropter

15 Ophthalmological Marvels That Make Your Eyesight as Clear as Your Hindsight

19th Century Phoropter

15 Ophthalmological Marvels That Make Your Eyesight as Clear as Your Hindsight

Rodenstock Phoropter, Phorolux Model

15 Ophthalmological Marvels That Make Your Eyesight as Clear as Your Hindsight

Moller Phoropter, Model Visutest D

15 Ophthalmological Marvels That Make Your Eyesight as Clear as Your Hindsight

Portable Phoroptor - for picnics?

15 Ophthalmological Marvels That Make Your Eyesight as Clear as Your Hindsight

Parts of the Phoropter, labeled