Retinoscopy : (or shadow test) in the determination of refraction at one meter distance, with the plane mirror / by James Thorington.

  • James Thorington
Date:
1899
Catalogue details

Licence: Public Domain Mark

Credit: Retinoscopy : (or shadow test) in the determination of refraction at one meter distance, with the plane mirror / by James Thorington. Source: Wellcome Collection.

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    Mirror, 24, 25, 34, 35 Mixed astigmatism, 63, 64 Movement of light, 41, 46, 47 mirror, 46, 47 Mulatto, 37 Myopia, 55, 56, 57 NAME, 17, 19 Negative aberration, 76, 77 Neutralizing lenses, 58, 59 Nystagmus, 21 OBSERVER, 28, 29, 33 Oliver, 19 PATIENT, 29, 30, 33 Point of reversal, 40, 41, 42, 53, 56, 57 to find, 40, 41 Position of light, 32, 33, 34 mirror, 32, 33, 34 observer, 32, 33, 34 patient, 32, 33, 34 Positive aberration, 76, 77 Principle of retinoscopy, 20 Punctum remotum, 57 Pupillary area, 36, 39 Pupilloscopy, 19 RATE of movement, 44, 45 Reflection from lenses, 44 mirror, 34 Regular astigmatism, 59, 60 Retinal illumination, 37, 38 Retinophotoscopy, 19 Retinoscope, 24, 25 Retinoscopy, 19 advantages of, 21 without a cycloplegic, 77 Retinoskiascopy, 19 Reversal of movement, 56, 57 Room, 27, 28 Rules for distance, 58, 59 lenses, 46, 58, 59 SCHEMATIC eye, 22, 78, 79 Scissor movement, 70, 71, 72, 73, 80, 81, 82 Shade, 26 Shadow, 38 test, 38 Sight-hole, 24 Size of mirror, 24, 25, 34, 35 Skiascopy, 19 Source of light, 28 Spheric aberration, 75, 76, 80, 81,82 Squint, 30 Suggestions to the beginner, 23 THORINGTON, 22, 25, 26, 27, 65, 79, 80 Trial-frame, 50 UMBRASCOPY, 19 VALUE of retinoscopy, 20 Vision of observer, 29 WELSBACH, 25 What the observer sees, 36 to avoid, 43, 44 Where to look and what to look for, 39 Wiirdemann, 47 YOUNG children, 21, 33, 67
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