单词 | absolute hypermetropia |
释义 | absolute hypermetropiaabsolute hypermetropiaHYPERMETROPIA of a degree, relative to age, in which clear vision cannot be achieved by accommodation. Thus, a child of 5 with, say, 4 dioptres of hypermetropia may easily see clearly by accommodating; but an adult of 50 with the same refraction could not see clearly without glasses, and would have an absolute hypermetropia of about 3 dioptres. |
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