Page:Tropical Diseases.djvu/108

76 {|
 * colspan=2| (see p. 75)
 * Quinine Amblyopia |||Malarial Amblyopia
 * History.—Quinine taken in large doses, not less than 30 grains. |||History.—Quinine may have been taken, but not necessarily in large doses.
 * Onset.—Sudden, accompanied by deafness; both eyes are affected. |||Onset.—Not usually sudden, but it may be so if hæmorrhage has occurred in the macular region. There is no deafness, and both eyes are not necessarily affected.
 * Pupils.—Widely dilated, and whilst loss of vision continues they do not react to light. |||Pupils.—React to light.
 * Vision.—Completely lost for a time. |||Vision.—Never completely lost.
 * Ophthalmoscopic appearances.—A white haze over fundus; cherry-red spot at macula; optic disc pale; retinal vessels markedly constricted. |||Ophthalmoscopic appearances.—There is optic neuritis; optic disc is of characteristic greyish-red colour; retinal hæmorrhages, and sometimes vitreous opacities.
 * Termination.—Usually some permanent defect in the field of vision or in colour vision. Central vision recovers first; optic disc is unusually white, and retinal vessels small. |||Termination.—Some cases recover completely; in others greater or less permanent defect of vision remains.
 * Treatment.—Stop quinine. Amyl nitrite has been recommended to induce dilatation of retinal vessels. |||Treatment.—Give quinine.
 * }
 * Vision.—Completely lost for a time. |||Vision.—Never completely lost.
 * Ophthalmoscopic appearances.—A white haze over fundus; cherry-red spot at macula; optic disc pale; retinal vessels markedly constricted. |||Ophthalmoscopic appearances.—There is optic neuritis; optic disc is of characteristic greyish-red colour; retinal hæmorrhages, and sometimes vitreous opacities.
 * Termination.—Usually some permanent defect in the field of vision or in colour vision. Central vision recovers first; optic disc is unusually white, and retinal vessels small. |||Termination.—Some cases recover completely; in others greater or less permanent defect of vision remains.
 * Treatment.—Stop quinine. Amyl nitrite has been recommended to induce dilatation of retinal vessels. |||Treatment.—Give quinine.
 * }
 * Termination.—Usually some permanent defect in the field of vision or in colour vision. Central vision recovers first; optic disc is unusually white, and retinal vessels small. |||Termination.—Some cases recover completely; in others greater or less permanent defect of vision remains.
 * Treatment.—Stop quinine. Amyl nitrite has been recommended to induce dilatation of retinal vessels. |||Treatment.—Give quinine.
 * }
 * }