A Manual of Ophthalmic Practice |
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Page 9
... existence of this point may be demonstrated in the following manner : -let two parallel radii of curvature CA and C'A ' ( Fig . 10 ) be drawn to the two surfaces of a double convex lens. FOCUS IN DOUBLE CONCAVE LENS . 9.
... existence of this point may be demonstrated in the following manner : -let two parallel radii of curvature CA and C'A ' ( Fig . 10 ) be drawn to the two surfaces of a double convex lens. FOCUS IN DOUBLE CONCAVE LENS . 9.
Page 39
... existence of dark spots in the latter , together with the unusual distinctness of the sclerotic ring , have been already mentioned . Other anomalies are- 1. A dark crescentic figure bordering some por- tion of the margin of the disc ...
... existence of dark spots in the latter , together with the unusual distinctness of the sclerotic ring , have been already mentioned . Other anomalies are- 1. A dark crescentic figure bordering some por- tion of the margin of the disc ...
Page 55
... existence of astigmatism is rendered certain by finding that some of the lines on Snellen's fan or on the clock face ( Fig . 27 ) placed at 5 or 6 metres can be seen more distinctly than others without any lens ; or that by + as J. For ...
... existence of astigmatism is rendered certain by finding that some of the lines on Snellen's fan or on the clock face ( Fig . 27 ) placed at 5 or 6 metres can be seen more distinctly than others without any lens ; or that by + as J. For ...
Page 61
... existence- by trial with lenses , by direct ophthalmoscopic examina- tion , and by keratoscopy . Measurement by trial with lenses . — We conduct the trial with lenses as follows : -Having placed our patient at a distance of 6 m . from ...
... existence- by trial with lenses , by direct ophthalmoscopic examina- tion , and by keratoscopy . Measurement by trial with lenses . — We conduct the trial with lenses as follows : -Having placed our patient at a distance of 6 m . from ...
Page 62
... existence of hypermetropia , we direct the patient to look at some distant object , and thus relax his accommodation as much as possible ; then approach the observed eye till our own cornea is separated from it by an interval of only ...
... existence of hypermetropia , we direct the patient to look at some distant object , and thus relax his accommodation as much as possible ; then approach the observed eye till our own cornea is separated from it by an interval of only ...
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Common terms and phrases
accommodation affected amblyopia anomaly of refraction anterior chamber appear asthenopia astigmatism atrophy atropine axis bandage become blood cataract cause centre chamber choroid ciliary region colour commenced concave lens congenital conjunctiva convergence convex lens cornea corneal margin corneitis curette curvature degree of myopia dilated dioptric direction disease displacement distance emmetropic examination extraction eyeball eyelids forceps foreign body fundus glasses glaucoma globe hæmorrhage horizontal hypermetropia hypermetropic astigmatism incision increased inflammation inflammatory injury intolerance of light iridectomy iris iritis keratitis knife lachrymal lenses less lids lines lint lotion muscle myopia object occur ocular opacity opaque operation ophthalmia ophthalmoscope optic disc orbit pain paralysis passed patient performed portion posterior presbyopia pupil rays of light removed retina retinal vessels right angles scissors sclerotic seen sight spots staphyloma strabismus suppuration surface sutures sympathetic ophthalmia symptoms synechia syphilitic tension tion treatment tumour ulceration usually vitreous wire speculum wound
Popular passages
Page 318 - Walsham, besides being an excellent surgeon, is a teacher in its best sense, and having had very great experience in the preparation of candidates for examination, and their subsequent professional career, may be relied upon to have carried out his work successfully. Without following out in detail his arrangement, which is excellent, we can at once say that his book is an embodiment of modern ideas neatly strung together, with an amount of careful organisation well suited to the candidate, and,...