A Handbook of the diseases of the eye and their treatmentP. Blakiston, Son, 1892 - 318 pages |
From inside the book
Results 1-5 of 92
Page 11
... removed from the eye than this , where he can read distinctly , is the near point . Between the near point and the eye vision is indistinct , because no effort of the ciliary muscle can produce the amount of convexity of the lens ...
... removed from the eye than this , where he can read distinctly , is the near point . Between the near point and the eye vision is indistinct , because no effort of the ciliary muscle can produce the amount of convexity of the lens ...
Page 47
... removed the lens , we find what is the highest convex lens which will bring out one vertical line distinctly ; let it be + 5 D ; this indicates hypermetropia of that amount in the horizontal meridian . We may correct such a case in ...
... removed the lens , we find what is the highest convex lens which will bring out one vertical line distinctly ; let it be + 5 D ; this indicates hypermetropia of that amount in the horizontal meridian . We may correct such a case in ...
Page 61
... removed just far enough from the patient's eye to cause the margin of the pupil to disappear out of the surgeon's field of vision . The observer then ceases to look into the eye , and fixes his gaze on the convex glass , when the ...
... removed just far enough from the patient's eye to cause the margin of the pupil to disappear out of the surgeon's field of vision . The observer then ceases to look into the eye , and fixes his gaze on the convex glass , when the ...
Page 62
... removed to a great extent from the line of sight by a slight rotation of the lens on its axis . If a very high convex lens , say +20 D , be used , the reflections from it are more disturbing than from a lower number , say + 14 D. To ...
... removed to a great extent from the line of sight by a slight rotation of the lens on its axis . If a very high convex lens , say +20 D , be used , the reflections from it are more disturbing than from a lower number , say + 14 D. To ...
Page 68
... removed slightly away from the lens ( to M ) , so that the focus come to lie in front of it , the brilliancy of the image on the screen and the intensity of the surrounding shadow are reduced . Because , in each instance 68 DISEASES OF ...
... removed slightly away from the lens ( to M ) , so that the focus come to lie in front of it , the brilliancy of the image on the screen and the intensity of the surrounding shadow are reduced . Because , in each instance 68 DISEASES OF ...
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Common terms and phrases
acuteness of vision affection amblyopia ametropia amplitude of accommodation angle anterior chamber appearance aqueous humor astigmatism atrophy atropine axis bandage become blennorrhoea bulbar capsule cataract cause centre chamber choroid chronic cicatrix ciliary ciliary body color concave conjunctiva convergence convex cornea cure defect dilated diplopia disease distance emmetropic epithelium external rectus eyeball eyelids fibres flap focus forceps foreign body glass glaucoma Graefe's hemianopsia hemorrhages horizontal hypermetropia incision infiltration inflammation iridectomy iris iritis lachrymal latter layers lens lesion liable light macula lutea margin method metres mirror motion muscle myopia normal object occurs opacity operation Ophthal ophthalmia ophthalmoscope optic nerve optic papilla orbital palpebral paralysis passed patient portion posterior prolapse pupil purulent rays refraction result retina sclerotic seen skin sometimes stage strabismus surface surgeon sutures swelling symptoms tarsus tension third nerve tion tissue Treatment tumor ulcer upper lid usually vertical meridian vessels vitreous humor wound
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