1836 50 ii. 132 This upper stand is placed so that the edge of the eye-speculum shall be over the middle of the table, and eighteen inches above it.
1901 36 249/1 The majority of the eye specula at present used, are made too clumsy and often not easy to handle.
2012 102 18/2 The irradiated eye was held open with use of an eye speculum.