 | 1814 - 574 páginas
...These effects, he conceives, are owing to the habit of looking at near objects. « Children born witli eyes which are capable of adjusting themselves to...their eyes at length lose irrecoverably the faculty of ut'ing brought to the adjustment for parallel rays.' All these points he confirms by a reference to... | |
 | Ralph Griffiths, George Edward Griffiths - 1814 - 574 páginas
...These effects, he conceives, are owing to the habit of looking at near objects. « Children born with eyes which are capable of adjusting themselves to...used to counteract the habit, their eyes at length lo§e irrecoverably the faculty of being brought to the adjustment for parallel rays.' AH these points... | |
 | 1815 - 670 páginas
...required the eyes to be directed to distant objects. Sir Charles observes, that ' Children born with eyes which are capable of adjusting themselves to...write ; those who are most addicted to study become near-sighted more rapidly ; and if no means are used to counteract the habit, their eyes at length... | |
 | William Kitchiner - 1824 - 272 páginas
...accounted for by one single circumstance, namely, the habit of looking at near objects. Children born with eyes which are capable of adjusting themselves to...write ; those who are most addicted to study become Near-sighted more rapidly ; and, if no means arerused to counteract the habit, their eyes at length... | |
 | John Charles Peters - 1856 - 148 páginas
...short-sightedness is using the eyes too much in early youth on small and near objects. Children born with eyes which are capable of adjusting themselves to...write ; those who are most addicted to study become near-sighted more rapidly. Hence, as myopia may to a certain extent be regarded as a habit, arising... | |
 | James Henry Clark - 1856 - 382 páginas
...capable of adjusting themselves to Cause3 ln chud. the most distant objects, gradually lose hoodthat power soon after they begin to read and write ; those who are most addicted to study become nearsighted more rapidly ; and if no means are used to sir chariea Blag- counteract the habit, their... | |
 | James Henry Clark - 1859 - 374 páginas
...capable of adjusting themselves to Cau«es ln child . the most distant objects, gradually lose hood that power soon after they begin to read and write;...sighted more rapidly ; and if no means are used to sir Charles Biag- counteract the habit, their eyes at den's experience. ] en gth lose irrecoverably... | |
 | 1813 - 522 páginas
...accounted for by one single circumstance; namely, the habit of looking at near objects. Children born with eyes which are capable of adjusting themselves to...distant objects, gradually lose that power soon after tl\ey begin to read and write i * From the Philosophical Tntntactiont for i8l3, parti. Y 4 those those... | |
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All this is exactly true, and to be accounted for by one single circumstance; namely, the habit of looking at near objects. Children born with eyes which are capable of adjusting themselves to the most distant objects, gradually lose that power soon after... 