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 xii
... perform their duties . They have not , as a rule , cases of lenses numbered in dioptrics available for their use ; the ordinary appliances for measurement at their command are divided into inches ; and xii THE ILLUSTRATED OPTICAL MANUAL.
... perform their duties . They have not , as a rule , cases of lenses numbered in dioptrics available for their use ; the ordinary appliances for measurement at their command are divided into inches ; and xii THE ILLUSTRATED OPTICAL MANUAL.
Page xiii
Sir Thomas Longmore. measurement at their command are divided into inches ; and these will probably remain the conditions in respect to such matters until the metre becomes the standard of measurement for the ordinary purposes of society ...
Sir Thomas Longmore. measurement at their command are divided into inches ; and these will probably remain the conditions in respect to such matters until the metre becomes the standard of measurement for the ordinary purposes of society ...
Page xv
... inches Cylindrical lenses Their varieties and action on light Spherico - cylindrical lenses Prisms Trial case of lenses Ready tests of convex , concave , and cylindrical lenses To ascertain the power of a convex , concave , or ...
... inches Cylindrical lenses Their varieties and action on light Spherico - cylindrical lenses Prisms Trial case of lenses Ready tests of convex , concave , and cylindrical lenses To ascertain the power of a convex , concave , or ...
Page xviii
... 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 Acuteness of V. with ametropia ...
... 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 Acuteness of V. with ametropia ...
Page 1
... Inches - Cylindrical Lenses , their Varieties and Actions - Prisms - Trial Case of Lenses -- Mode of Testing the Power of a Convex , Concave , or Cylindrical Lens - Army Optical and Ophthalmoscopic Case - Images formed by Lenses ...
... Inches - Cylindrical Lenses , their Varieties and Actions - Prisms - Trial Case of Lenses -- Mode of Testing the Power of a Convex , Concave , or Cylindrical Lens - Army Optical and Ophthalmoscopic Case - Images formed by Lenses ...
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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