A Handbook of the diseases of the eye and their treatmentP. Blakiston, Son, 1892 - 318 pages |
From inside the book
Results 1-5 of 86
Page xiii
... tion - The Modified Peripheral Linear Extraction -- The Three Millimetre Flap Operation -- Cataract Extraction without Iri- dectomy Discission or Dilaceration - Suction Operation -- Secondary Cataract and its Operation - Capsulotomy ...
... tion - The Modified Peripheral Linear Extraction -- The Three Millimetre Flap Operation -- Cataract Extraction without Iri- dectomy Discission or Dilaceration - Suction Operation -- Secondary Cataract and its Operation - Capsulotomy ...
Page 6
... tion . The images formed in plane mirrors are upright and virtual . If O B ( Fig . 9 ) be the object , rays pass from it to the mirror , M , and are reflected . Some of the reflected rays reach the eye of the observer , and there seems ...
... tion . The images formed in plane mirrors are upright and virtual . If O B ( Fig . 9 ) be the object , rays pass from it to the mirror , M , and are reflected . Some of the reflected rays reach the eye of the observer , and there seems ...
Page 10
... tion is a contraction of the pupil . The accompanying figure ( Fig . 14 ) represents the changes which take place in accommodation , the dotted lines indicating the latter state . The Far Point , and the Near Point . - It is possible ...
... tion is a contraction of the pupil . The accompanying figure ( Fig . 14 ) represents the changes which take place in accommodation , the dotted lines indicating the latter state . The Far Point , and the Near Point . - It is possible ...
Page 12
... tion , we find in this case - since a focal length of 20 cm . repre- sents a lens of 5 D - that a = 5 r , but R being situated at in- finity , we designate it by the sign ∞ ; hence , r = therefore a = = 50 = = 5 D. * 1 R 1 0 ; ∞ The ...
... tion , we find in this case - since a focal length of 20 cm . repre- sents a lens of 5 D - that a = 5 r , but R being situated at in- finity , we designate it by the sign ∞ ; hence , r = therefore a = = 50 = = 5 D. * 1 R 1 0 ; ∞ The ...
Page 45
... tion of the light passing through them equally in every direc- tion . We employ , therefore , what are termed cylindrical lenses , ground in a peculiar way , which refract light in one direction only , viz . , that corresponding to ...
... tion of the light passing through them equally in every direc- tion . We employ , therefore , what are termed cylindrical lenses , ground in a peculiar way , which refract light in one direction only , viz . , that corresponding to ...
Contents
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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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