单词	perimetry
释义	perimetry /pəˈrɪmɪtri / noun [mass noun] Measurement of a person’s field of vision.Fundoscopy showed severe disc swelling, and perimetry showed visual field defects, which were most extensive in both lower quadrants.... In the recent check up I was diagnosed with early stage of chronic open angle glaucoma in both eyes by computerised field perimetry - left eye more than right, although left eye is much less myopic than right one. Intraocular pressure, the optic nerve, and perimetry provide complementary clues but are not easily combined in population-based screening programs.
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