US 11,896,307 B2
Ophthalmologic apparatus and method of controlling same
Yoko Tatara, Kita-ku (JP); Michiko Nakanishi, Katsushika-ku (JP); and Shunichi Morishima, Kawagoe (JP)
Assigned to TOPCON CORPORATION, Tokyo (JP)
Filed by TOPCON CORPORATION, Tokyo (JP)
Filed on Jul. 24, 2020, as Appl. No. 16/937,607.
Application 16/937,607 is a continuation of application No. PCT/JP2019/000438, filed on Jan. 10, 2019.
Claims priority of application No. 2018-059827 (JP), filed on Mar. 27, 2018.
Prior Publication US 2020/0352435 A1, Nov. 12, 2020
Int. Cl. A61B 3/10 (2006.01); A61B 3/103 (2006.01); A61B 3/12 (2006.01)
CPC A61B 3/102 (2013.01) [A61B 3/103 (2013.01); A61B 3/12 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An ophthalmologic apparatus, comprising:
a refractive power measurement optical system including a first focusing element capable of changing a focal position, and configured to project first light onto a subject's eye and to detect returning light of the first light from the subject's eye via the first focusing element;
a fixation projection system configured to project a fixation target onto the subject's eye;
an inspection optical system including a second focusing element capable of changing a focal position in conjunction with the first focusing element, and configured to perform a predetermined inspection in which second light is projected onto at least the subject's eye via the second focusing element; and
a controller configured to control the first focusing element and the second focusing element based on a detection result of the returning light of the first light. the returning light being obtained by performing provisional measurement using the refractive power measurement optical system in a state where the fixation target is projected onto the subject's eye, and to perform refractive power measurement using the first light in a state of promoting a fogging of the subject's eye by controlling the fixation projection system after performing the predetermined inspection using the inspection optical system.