| 摘要 |
PROBLEM TO BE SOLVED: To provide a tonometer that can obtain reliability of measured ocular pressure.SOLUTION: The tonometer includes: an ocular pressure-measuring part 11 for measuring the ocular pressure by blowing a gas to a cornea of an eye to be examined; an image acquisition part 12 for photographing the eye to be examined to acquire an image thereof; an eyelid specifying part 14 for specifying an outer edge of an eyelid of the eye to be examined after the start of ocular pressure measurement, using a determination image acquired just before the ocular pressure measurement; a reliable information generating part 17 for generating reliable information on the reliability of the ocular pressure measured by the ocular pressure-measuring part 11 using the outer edge of the eyelid specified by the eyelid specifying part 14, so that the reliability increases as an eyelid distance, the distance from a center of a region blown by the gas to the outer edge of the eyelid, becomes large; and a reliable information output part 18 for outputting the reliable information. |
