Plural of astigmatoscopy; multiple procedures or examinations using an astigmatoscope to detect astigmatism.
From astigmatoscopy (astigmatism plus -scopy, examination) plus -ies (plural). This medical plural describes repeated or multiple uses of the astigmatoscope tool.
When a word gets a plural form with '-ies,' it usually means we're doing that procedure multiple times—whether for different patients or repeatedly checking the same eye across time.
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