 | 1813 - Страниц: 682
...almost as well as when they were young. Although it be not easy to ascertain the саиье of tins amended vision, it seems not improbable that it is...of part of the vitreous humour; in consequence of »hirh the sides of the eye collapse, and its axis from the cornea to the retina is lengthened ; by... | |
 | 1814 - Страниц: 574
...temples ; and sometimes by looking through a microscope, for a continued length of time, in se. Teral successive days. ' Fourthly ; instances are not uncommon,...to these parts before the alteration took place.' The Bakcrian Lecture. On the Elementary Particles of certain Crystals. By WH Wollaston, MD, Sec. RS... | |
 | 1814 - Страниц: 550
...between eighty and ninety,) whose eyes have been accustomed tor a long time to the use of deeply-convex glasses, when they have read or written, have ceased...had to these parts before the alteration took place. Sir Charles Blagden states bis concurrence in opinion with Mr. Ware, that near-sightedness comes on... | |
 | 1814 - Страниц: 580
...accustomed !'••• t • a long time to the use of deeply-convex glasses, when they have readier written, have ceased to derive benefit from these...had to these parts before the alteration took place. Sir Charles Blagden states his concurrence in opinion with Mr. Ware, that near-sightedness comes on... | |
 | Thomas Thomson - 1814 - Страниц: 516
...sometimes by looking through a microscope, for a continued length of time, for several successive days. 4. Instances are not uncommon in which persons far advanced...which the sides of the eye collapse, and its axis from th« cornea to the retina is lengthened ; by which alteration the length of this axis is brought into... | |
 | Ralph Griffiths, George Edward Griffiths - 1814 - Страниц: 574
...convex glasses, when they have read or written, have ceased to derive benefit from, these glasses, aod they have become able, without any assistance, to...crystalline, or both, which it had to these parts before (he alteration took place.' ' Thirdly ; though the cause of this change be not always known, yet sometimes... | |
 | Sir Richard Phillips - 1830 - Страниц: 728
...looking through a microscope, for a continued length of time, for several successive days. 4. That instances are not uncommon in which persons far advanced...had to these parts before the alteration took place. An Account of some Organic Remains found near Brentford, Middlesex ; in a Letter to Sir Joseph Banks.... | |
 | 1813 - Страниц: 692
...to see both near and distant objects almost as well as when they were young. Auh >u«h it be ТКЧ easy to ascertain the cause of this amended vision,...of part of the vitreous humour; in consequence of nhicii the sides of the eye collapse, and its axis from the cornea to the retina is lengthened ; by... | |
 | 1813 - Страниц: 522
...by it. It appears to me more probable, that this remarkable revolution in the sight of old persons is occasioned by an absorption of part of the vitreous humour; in const^quence of which, the sides of the ticlerotica are pressed inward, and the axis of the eye, by... | |
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That instances are not uncommon in which persons far advanced in life (viz. between eighty and ninety), whose eyes have been accustomed for a long time to the use of deeply convex glasses, when they have read or written, have ceased to derive benefit... 