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 General |
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Page x
... eyesight must evidently be the prime ingredient necessary to insure the success of the marksman . The more this fact ... acuteness of vision , at least as regards the right eye ; and it seems to be manifestly important , therefore , that ...
... eyesight must evidently be the prime ingredient necessary to insure the success of the marksman . The more this fact ... acuteness of vision , at least as regards the right eye ; and it seems to be manifestly important , therefore , that ...
Page xviii
... VISION . 151 • 153 Acuteness of Vision . Causes 167 Normal acuteness of V. 153 Symptoms and diagnosis 169 Alertness of V. . 154 Hemeralopia 169 Relative acuteness of V. 155 Nyc alopia . 170 Measurement of acuteness of V. 155 Hemiopia ...
... VISION . 151 • 153 Acuteness of Vision . Causes 167 Normal acuteness of V. 153 Symptoms and diagnosis 169 Alertness of V. . 154 Hemeralopia 169 Relative acuteness of V. 155 Nyc alopia . 170 Measurement of acuteness of V. 155 Hemiopia ...
Page xix
... Visual acuteness proved by round dots at 10 feet . PAGE 186 Target centres and bull's - eyes 182 By round dots at 5 feet 187 Visual angles of target bull's - eyes By square dots at 15 feet 187 183 By square dots at 10 feet 187 Only ...
... Visual acuteness proved by round dots at 10 feet . PAGE 186 Target centres and bull's - eyes 182 By round dots at 5 feet 187 Visual angles of target bull's - eyes By square dots at 15 feet 187 183 By square dots at 10 feet 187 Only ...
Page 49
... vision and the advantages of ocular movements are also curtailed by it . The stenopoeic hole is often of use in determining whether deficiency in acuteness of vision is due to ametropia or to some other ocular defect . It is very ...
... vision and the advantages of ocular movements are also curtailed by it . The stenopoeic hole is often of use in determining whether deficiency in acuteness of vision is due to ametropia or to some other ocular defect . It is very ...
Page 52
... acuteness of the visual impression produced by it , will be modified very materially by the degree of illumination ... vision . There are two sights attached to the rifle , technically called the backsight and the foresight ; a slide on ...
... acuteness of the visual impression produced by it , will be modified very materially by the degree of illumination ... vision . There are two sights attached to the rifle , technically called the backsight and the foresight ; a slide on ...
Other editions - View all
The Illustrated Optical Manual: Or Handbook of Instructions for the Guidance ... T. Longmore No preview available - 2018 |
The Illustrated Optical Manual, Or Handbook of Instructions for the Guidance ... Thomas Longmore, Sir No preview available - 2016 |
Common terms and phrases
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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