The Ophthalmic Review, Volume 11Sherratt & Hughes, 1892 - Eye |
Contents
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Common terms and phrases
accommodation affected anterior chamber appears arteries asthenopia astigmatism atrophy binocular vision blood column blood-vessels capsule cataract cause cells central centre chamber changes choroid ciliary body cocain colour condition conjunctiva convergence cornea corneal reflex cyst Descemet's membrane dilatation dioptres disc disease epithelium evidence examination experiments eyeball frontal fundus gland glasses glaucoma globe growth hæmorrhage hyperopia incision inflammation injected injury inner iridectomy iris irritation keratitis lacrymal later layer left eye lens lesion leucocytes light light-streak margin membrane method metre microscopic mirror muscle myopia nasal normal nystagmus observed occurred ocular opacity operation ophthalmic ophthalmoscope optic nerve orbit pain passed patient pigment pinguecula portion position posterior present prisms pterygium pupil rabbit reflex refraction removed retina retinal vessels right eye sarcoma sclerotic seen showed side sinus strabismus streak surface surgeon symptoms tion tissue treatment tube tumour ulcer upper vascular veins vitreous wall wound
Popular passages
Page 162 - ... as the green and red sealed pattern glasses of the Royal Navy, should be generally adopted. (12) That in case of judicial inquiries as to collisions or accidents, witnesses giving evidence as to the nature or position of coloured signals or lights should be themselves tested for colour and form vision.
Page 162 - That the tests for form should be those of Snellen, and that they should be carried out as laid down in Appendix VI. It would probably, in most cases, suffice if half normal vision in each eye were required. (6) That a candidate rejected for any of the specified employments should have a right of appeal to an expert approved by the central authority, whose decision should be final. (7) That a candidate who is rejected for naming colours wrongly, but who has been proved to possess normal colour vision,...
Page 161 - ... (1) That the Board of Trade, or some other central authority, should schedule certain employments in the mercantile marine and on railways, the filling of which by persons whose vision is defective either for colour or form, or who are ignorant of the names of colours, would involve danger to life and property. (2) That the proper testing, both for colour and form, of all candidates for such employments should be compulsory. (3) That the testing should be intrusted to examiners certificated by...
Page 162 - ... held, should be sent annually to the central authority. 9. That every third year, or oftener, persons filling the scheduled employments should be examined for formvision. 10. That the tests in use, and the mode of conducting examinations at the different testing stations, should be inspected periodically by a scientific expert, appointed for that purpose by the central authority. 11. That the colours used for lights on board ship, and for lamp signals on railways, should...
Page 162 - ... such employments should be compulsory. 3. That the testing should be entrusted to examiners certificated by the central authority. 4. That the test for colour-vision should be that of Holmgren, the sets of wools being approved by the central authority before use, especially as to the correctness of the three test colours, and also of the confusion colours. If the test be satisfactorily passed, it should be followed by the candidate being required to name without hesitation the colours which are...
Page 203 - ... from the increased vitreous tension. It is probable that the fluid secreted by the ciliary processes posterior to the zonula divides into two portions, one part passing forward into the posterior chamber and thence through the pupil into the anterior chamber, the other passing back through the vitreous and out through the centra] canal of the opticus into the tissues of the orbit.
Page 204 - While certain facts, such as the regular passage of pigment and bacilli from Fontana's spaces into the cornea, and the progress of subconjunctival haemorrhages in the same direction, together with the impermeability of Descemet's membrane from behind, speak for the nourishment of the cornea from its periphery, the corneal lymph-stream, if any exists, is too weak to perceptibly affect the diffusion of fluorescein or the progress of pigment-particles through its tissues.
Page 162 - Holmgren, the sets of wools being approved by the central authority before use, especially as to the correctness of the three test colours, and also of the confusion colours. If the test be satisfactorily passed, it should be followed by the candidate being required to name without hesitation the colours which are employed as signals or lights, and also white light. (5) That the tests for form should be those of Snellen, and that they should be carried out as laid down in Appendix VI. It would probably,...
Page 34 - The haemorrhage subsided rapidly at first, but did not disappear entirely ; the eye was left prominent for many months. The treatment was essentially that of scurvy; in addition to the ordinary food, juice of fresh meat, a little fruit or vegetable, cod-liver oil, or cream should be given. The slighter cases recovered rapidly ; the more serious ones were slow in progress and often fatal.
Page 205 - In some cases the pressure is exerted on the optic nerve in the optic canal. Tumors of the sphenoid antrum may perforate the middle fossa of the skull without causing blindness, and when blindness does occur in these cases it is not necessarily due to pressure on the optic chiasm, for it may be unilateral. If an orbital tumor rapidly causes blindness, and the latter starts from the temporal side of the field and leaves the region of the macula lutea unaffected to the last, and if at the same time...