Ophthalmic apparatus and ophthalmic apparatus control method

Patent metadata

Field	Value
Publication number	US-2016100754-A1
Application number	US-201514877108-A
Country	US
Kind code	A1
Filing date	Oct 7, 2015
Priority date	Oct 10, 2014
Publication date	Apr 14, 2016
Grant date	—

Abstract

An ophthalmic apparatus includes a display control unit configured to cause a display unit to display a fundus image of an eye to be inspected, which is obtained by photographing an image of a fundus of the eye to be inspected by using a photographing optical system, an input unit configured to input whether to store the displayed fundus image, and a selecting unit configured to select, if it is input that the display fundus image is not to be stored, whether to execute rephotograph after automatically controlling a driving unit for driving at least one of a focusing portion formed in the photographing optical system and a photographing unit including the photographing optical system, or to execute rephotograph after manually controlling the driving unit.

First claim

What is claimed is:

1 . An ophthalmic apparatus comprising:
a display control unit configured to cause a display unit to display a fundus image of an eye to be inspected, which is obtained by photographing an image of a fundus of the eye to be inspected by using a photographing optical system; an input unit configured to input whether to store the displayed fundus image; and a selecting unit configured to select, if it is input that the displayed fundus image is not to be stored, whether to execute rephotograph after automatically controlling a driving unit for driving at least one of a focusing portion formed in the photographing optical system and an photographing unit including the photographing optical system, or to execute rephotograph after manually controlling the driving unit.

2 . An apparatus according to claim 1 , wherein
the selecting unit includes a presenting unit configured to present an imaging error cause list to an examiner, if it is selected to execute rephotograph of the eye to be inspected by automatically controlling the driving unit for driving at least one of the focusing portion and the photographing unit in the rephotograph, and the selecting unit executes the automatic control in accordance with selection of an imaging error cause due to which the fundus image has an imaging error, from the imaging error cause list presented by the presenting unit.

3 . An apparatus according to claim 2 , wherein in the automatic control, if the selected imaging error cause is flare, driving of the photographing unit by the driving unit is automatically controlled in rephotograph, and, if the selected imaging error cause is defocus shift, driving of the focusing portion by the driving unit is automatically controlled in rephotograph.

4 . An apparatus according to claim 3 , wherein in the automatic control, a driving amount by which the driving unit drives the photographing unit is calculated from a width of flare in a periphery of the fundus image having the imaging error, and the driving unit is automatically controlled by a driving amount in a direction which increases a relative distance between the eye to be inspected and the photographing unit when a color of the flare is red, and automatically controlled by a driving amount in a direction which decreases the relative distance when the color of the flare is blue.

5 . An apparatus according to claim 4 , wherein in the automatic control, if the selected imaging error cause is defocus shift, a diopter of the eye to be inspected is obtained from an amount of the defocus shift in rephotograph, and the driving unit for driving the focusing portion is automatically controlled in accordance with the diopter.

6 . An ophthalmic apparatus comprising:
an input unit configured to input whether to store a fundus image of an eye to be inspected, which is obtained by photographing an image of a fundus of the eye to be inspected by using a photographing unit including a photographing optical system, and a selecting unit configured to select, if it is input that the fundus image is not to be stored, whether to manually photograph an image of the fundus by using the photographing unit, or to rephotograph the fundus under a driving control condition of the photographing unit when the image of the fundus is photographed.

7 . An apparatus according to claim 6 , wherein the selecting unit can select to change, when performing rephotograph, at least one of an alignment state between the photographing unit and the eye to be inspected, and a focusing state of a focusing portion with respect to the fundus, as the driving control condition of the photographing unit.

8 . An apparatus according to claim 6 , wherein the driving control condition includes an alignment state between the photographing unit and the eye to be inspected, and a focusing state of a focusing portion of the photographing optical system with respect to the eye to be inspected.

9 . An ophthalmic apparatus comprising:
a display control unit configured to cause a display unit to display a fundus image obtained by photographing an image of a fundus of an eye to be inspected by using a photographing unit including a photographing optical system; and a selecting unit configured to select whether to rephotograph the fundus by manually controlling the photographing unit by a user, or to rephotograph the fundus by automatically controlling the photographing unit, in accordance with an operation performed by the user after the fundus image is displayed on the display unit.

10 . An ophthalmic apparatus comprising:
a selecting unit configured to select a cause of an imaging error of a fundus image obtained by photographing an image of a fundus of an eye to be inspected by using a photographing unit including a photographing optical system; and a control unit configured to control the photographing unit to rephotograph the fundus by using a photographing condition of solving the selected cause.

11 . An apparatus according to claim 10 , further comprising a display control unit configured to cause a display unit to display the fundus image,
wherein the selecting unit selects the cause in accordance with an operation performed by a user after the fundus image is displayed on the display unit.

12 . An apparatus according to claim 10 , wherein the selecting unit selects the cause by analyzing the fundus image.

13 . An ophthalmic apparatus control method comprising steps of:
causing a display unit to display a fundus image of an eye to be inspected, which is obtained by photographing an image of a fundus of the eye to be inspected by using a photographing optical system; inputting whether to store the displayed fundus image; and selecting, if it is input that the displayed fundus image is not to be stored, whether to execute rephotograph after automatically controlling a driving unit for driving at least one of a focusing portion formed in the photographing optical system and a photographing unit including the photographing optical system, or to execute rephotograph after manually controlling the driving unit.

14 . An ophthalmic apparatus control method comprising steps of:
inputting whether to store a fundus image of an eye to be inspected, which is obtained by rephotographing a fundus of the eye to be inspected by using a photographing unit including a photographing optical system, and selecting, if it is input that the fundus image is not to be stored, whether to manually photograph an image of the fundus by using the photographing unit, or to rephotograph the fundus under a driving control condition of the photographing unit when the image of the fundus is photographed.

15 . An ophthalmic apparatus control method comprising steps of:
causing a display unit to display a fundus image obtained by photographing an image of a fundus of an eye to be inspected by using a photographing unit including a photographing optical system; and selecting whether to rephotograph the fundus by manually controlling the photographing unit by a user, or to rephotograph the fundus by automatically controlling the photographing unit, in accordance with an operation performed by the user after the fundus image is displayed on the display unit.

16 . An ophthalmic apparatus control method comprising steps of:
selecting a cause of an imaging error of a fundus image obtained by photographing an image of a fundus of an eye to be inspected by using a photographing unit including a photographing optical system; and controlling the photographing unit to rephotograph the fundus by using a photo

Assignees

• Canon Kk

Inventors

• Dobashi Yasuhiro

Classifications

• A61B3/152 Primary

  for aligning · CPC title

• A61B3/12

  for looking at the eye fundus, e.g. ophthalmoscopes (A61B3/13 takes precedence) · CPC title

• A61B3/154

  for spacing · CPC title

• A61B3/0025 Primary

  characterised by electronic signal processing, e.g. eye models · CPC title

• A61B3/0033

  characterised by user input arrangements · CPC title