Functional Nervous Diseases: Their Causes and Their Treatment, Memoir for the Concourse of 1881-1883 Académie Royale de Médecine de Belglique with a Supplement on the Anomalies of Refraction and Accommodation of the Eye and of Ocular Muscles |
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Page 22
... well known to oculists , may be less familiar to those not specially engaged in ex- amining the defects of vision . When rays of light fall upon the transparent sur- face 22 FUNCTIONAL NERVOUS AFFECTIONS . The Eye as an Irritating Cause.
... well known to oculists , may be less familiar to those not specially engaged in ex- amining the defects of vision . When rays of light fall upon the transparent sur- face 22 FUNCTIONAL NERVOUS AFFECTIONS . The Eye as an Irritating Cause.
Page 23
... rays must unite at the focus of the eye , which is the reti- na . To this end , the rays are refracted as they pass through the media . In the normal eye the refractive power is such that parallel rays , rays from objects at infinite ...
... rays must unite at the focus of the eye , which is the reti- na . To this end , the rays are refracted as they pass through the media . In the normal eye the refractive power is such that parallel rays , rays from objects at infinite ...
Page 25
... certain well - under- stood anomalies with the ideal , or , as it is called , the emmetropic eye . In the emmetropic eye parallel rays are so refract- ed that , without an effort on the part of FUNCTION OF ACCOMMODATION . 25.
... certain well - under- stood anomalies with the ideal , or , as it is called , the emmetropic eye . In the emmetropic eye parallel rays are so refract- ed that , without an effort on the part of FUNCTION OF ACCOMMODATION . 25.
Page 26
... rays to a focus at the retina . In such an eye the rays , if permitted to pass beyond the retina , would unite in a focus behind it . In such an eye , clear vision can only be obtained by giving to the rays a greater re- fraction than ...
... rays to a focus at the retina . In such an eye the rays , if permitted to pass beyond the retina , would unite in a focus behind it . In such an eye , clear vision can only be obtained by giving to the rays a greater re- fraction than ...
Page 27
... rays refracted in the same manner as in the emmetropic eye cross before reaching the retina . Cir- cles of diffusion take the place of distinct images when distant objects are to be viewed , and , except for ob- jects brought within the ...
... rays refracted in the same manner as in the emmetropic eye cross before reaching the retina . Cir- cles of diffusion take the place of distinct images when distant objects are to be viewed , and , except for ob- jects brought within the ...
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Functional Nervous Diseases: Their Causes and Their Treatment, Memoir for ... George T. Stevens No preview available - 2017 |
Common terms and phrases
accommodation aches adducting power anomalies apoplexy asthenopia atropine attacks Bright's disease brother died cause chorea ciliary muscle Cloth complaint continued convex cornea correction crystalline lens Cured cylindrical glasses degree demand died of Bright's died of consumption died of fever diplopia distance epilepsy epileptic esophoria examined exercise external recti muscles families Father died frequently function head headaches heart-disease hereditary hypermetropia hyperopia hyperopic hyperphoria influence insane instances insufficiency internal irritation known less manifest mental metropia migraine months mother died muscular myopia myopic astigmatism nerve nervous disease nervous disturbance nervous energy Neural neuralgia neurasthenia neuroses occurred ocular conditions ocular defects ocular muscles oculists pain parallel rays paroxysm patient permanent physician presbyopia prisms ralgia rectus refractive error relief Result of treatment retina scapulæ sclera seen shown sister died slight spherical strabismus suffered symptoms tendency tenotomy thenia tion twenty feet vision visual lines weeks
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