The Illustrated Optical Manual, Or Handbook of Instructions for the Guidance of Surgeons in Testing Quality and Range of Vision, and in Distinguishing and Dealing with Optical Defects in GeneralLongmans, Green, 1888 - 239 páginas |
Dentro del libro
Resultados 1-5 de 39
Página xviii
... Snellen's test - types on the inch Definition 173 . scale 158 Causes 173 Snellen's test - types on the metri- cal scale . Burchardt's international sight- tests Snellen's standard of visual acute- ness Test - types in military practice ...
... Snellen's test - types on the inch Definition 173 . scale 158 Causes 173 Snellen's test - types on the metri- cal scale . Burchardt's international sight- tests Snellen's standard of visual acute- ness Test - types in military practice ...
Página xix
... Snellen's test - types 185 CHAPTER IX . ON THE MANNER OF CONDUCTING THE VISUAL EXAMINATION OF RECRUITS AND SOLDIERS , TOGETHER WITH AN ACCOUNT OF THE QUALITIES OF SIGHT WHICH DETERMINE THE SELECTION OF OFFICERS AND MEN FOR ARMY , NAVY ...
... Snellen's test - types 185 CHAPTER IX . ON THE MANNER OF CONDUCTING THE VISUAL EXAMINATION OF RECRUITS AND SOLDIERS , TOGETHER WITH AN ACCOUNT OF THE QUALITIES OF SIGHT WHICH DETERMINE THE SELECTION OF OFFICERS AND MEN FOR ARMY , NAVY ...
Página 56
... Snellen's types ; Sph . , Spherical ; D. , Dioptric ; 1 m . , one metre ; 1 cm . , one centimetre ; 1 mm . , one millimetre . Symbols . The following symbols are also found useful for 56 СНАР . 1 THE ILLUSTRATED OPTICAL MANUAL.
... Snellen's types ; Sph . , Spherical ; D. , Dioptric ; 1 m . , one metre ; 1 cm . , one centimetre ; 1 mm . , one millimetre . Symbols . The following symbols are also found useful for 56 СНАР . 1 THE ILLUSTRATED OPTICAL MANUAL.
Página 59
... Snellen's types at the indicated distances with clearness and facility . 2. By Spectacles . - Vision of distant objects is not improved either by a convex or concave lens as a hyper - metropic or myopic eye respectively would be , but ...
... Snellen's types at the indicated distances with clearness and facility . 2. By Spectacles . - Vision of distant objects is not improved either by a convex or concave lens as a hyper - metropic or myopic eye respectively would be , but ...
Página 65
... Snellen's types at the proper distances , but will not be able to read the larger types at the distances indicated by the figures placed above them . If the degree of M. be higher than 3 D , then No. 1 of Sn . will not be read at quite ...
... Snellen's types at the proper distances , but will not be able to read the larger types at the distances indicated by the figures placed above them . If the degree of M. be higher than 3 D , then No. 1 of Sn . will not be read at quite ...
Otras ediciones - Ver todas
The Illustrated Optical Manual: Or Handbook of Instructions for the Guidance ... T. Longmore Sin vista previa disponible - 2018 |
The Illustrated Optical Manual, Or Handbook of Instructions for the Guidance ... Thomas Longmore, Sir Sin vista previa disponible - 2016 |
Términos y frases comunes
accommodation acuteness of vision amblyopia ametropia ametropic amount of Acc appear army asthenopia astigmatic eye astigmatism axis binocular vision bull's-eye cause centre ciliary muscle colour colour-blindness concave lens convex lens cornea correcting lens correction Crown 8vo curvature cylindrical lens defect Diagnosis diffusion dioptric diplopia direction distance distant objects distant point distinct vision emmetropic examination exerted exist eye under observation feet focal fundus glasses inches keratoscopy left eye lenses lessened medical officer meridian Mc military service mirror myope myopic neutralised normal acuteness ocular ophthalmoscopic optic parallel rays patient person placed point of distinct power of Acc practice principal focus principal meridians prism rays of light rays proceeding recruit refractive defect refractive power refractive quality regards rendered retina retinal images rifle right eye seen shadow sight soldier spectacles spherical strabismus surgeon target test-dots tion unfit visual acuteness visual angle visual lines
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