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 xvi
... vision 74 of eyes 57 Nearest point 75 Symptoms 75 Emmetropia . H. and strabismus 76 Definition 59 Manifest and latent II . 77 Optical conditions 59 Diagnosis . 78 Farthest point of distinct vision 59 ( 1 ) By external signs 78 Nearest ...
... vision 74 of eyes 57 Nearest point 75 Symptoms 75 Emmetropia . H. and strabismus 76 Definition 59 Manifest and latent II . 77 Optical conditions 59 Diagnosis . 78 Farthest point of distinct vision 59 ( 1 ) By external signs 78 Nearest ...
Page 12
... distinct vision in all directions around it . The most convenient plan is to place the patient with one eye covered , and the other free , at a distance of about two feet ... vision Measurement of monocular and bin- ocular fields of vision.
... distinct vision in all directions around it . The most convenient plan is to place the patient with one eye covered , and the other free , at a distance of about two feet ... vision Measurement of monocular and bin- ocular fields of vision.
Page 13
... vision sufficiently distinct to count fingers ceases , and more externally where imperfect vision or luminous impression ceases and complete absence of sight begins . Any loss of visual function in particular spots of the retina may ...
... vision sufficiently distinct to count fingers ceases , and more externally where imperfect vision or luminous impression ceases and complete absence of sight begins . Any loss of visual function in particular spots of the retina may ...
Page 42
... distinct vision . This is met by suitably adjusting the distance at which the objects looked at are placed . Eyeglasses . The use of a single eyeglass by any one who has the use of both eyes is not to be recommended , excepting in rare ...
... distinct vision . This is met by suitably adjusting the distance at which the objects looked at are placed . Eyeglasses . The use of a single eyeglass by any one who has the use of both eyes is not to be recommended , excepting in rare ...
Page 53
... vision with the bull's - eye of the target . As soon as the sights and ... distinct- ness , either of the sights of the rifle ; he only sees clearly ... vision gives a more vivid impression of an object from both eyes being simultaneously ...
... vision with the bull's - eye of the target . As soon as the sights and ... distinct- ness , either of the sights of the rifle ; he only sees clearly ... vision gives a more vivid impression of an object from both eyes being simultaneously ...
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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