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.

Abstract: Provided is an ophthalmologic apparatus which is capable of performing offset adjustment of an alignment position while performing transillumination observation by automatic alignment. The ophthalmologic apparatus includes an automatic alignment unit for automatically performing alignment between a measuring portion and an eye to be inspected, and an alignment position changing unit capable of moving an optical axis center position of the measuring portion to an arbitrary position in the transillumination observation.

Abstract: Provided is a non-contact tonometer capable of inhibiting unnecessary air discharge against an eye to be inspected. The non-contact tonometer includes: a corneal shape deforming unit for pressurizing air in a cylinder using a piston provided in the cylinder and puffing the air through an opening in the cylinder toward a cornea of an eye to be inspected so as to deform the cornea; a piston control unit for controlling operation of the piston; and an eye pressure measurement unit for detecting a state of deformation of the cornea so as to measure an eye pressure of the eye to be inspected. The piston includes: an air ejecting portion provided on the opening side in the cylinder; and a piston drive portion connected to the piston control unit independently of the air ejecting portion.

Abstract: In a non-contact tonometer, puffing of air unnecessary for measurement of an eye to be inspected after driving of a solenoid is stopped is suppressed. In the non-contact tonometer including a corneal shape change unit configured to change the shape of the cornea by pressurizing and supplying a gas in a cylinder by a piston, and an eye pressure measuring unit configured to measure the eye pressure from the state of the shape change of the cornea, an opening portion configured to be formed in the outer wall of the cylinder and decide the internal volume of the cylinder when pressurizing the gas, and a pressurized gas volume change unit configured to change a position where the opening portion can connect the inside of the cylinder with the outside, and change the internal volume of the cylinder when pressurizing the gas.

Abstract: An ophthalmic apparatus in which a tilt angle of an operating rod corresponds to a position of an inspection unit adapted to inspect an eye to be examined, and a movable range of the inspection unit is wider than a tilt able range of the operating rod, the apparatus comprising: a detection unit adapted to detect the tilt angle of the operating rod by detecting an electrical signal generated by tilting the operating rod; a calculation unit adapted to calculate a position of the inspection unit which corresponds to the tilt angle; a moving unit adapted to move the inspection unit to a position calculated by the calculation unit; and a switching unit adapted to switch between interruption and resumption of calculation processing performed by the calculation unit.

Abstract: An ophthalmologic apparatus including an index projection unit to project an index on a cornea of a subject's eye, an imaging unit to form an image on an imaging plane via an objective lens and capture an image of the index projected on the cornea, and a control unit to control a distance between the subject's eye and the object lens so that a size of the captured index becomes a predetermined size.

Abstract: In a contactless tonometer having a mechanism of puffing compressed air by moving a piston in a cylinder, puffing of unnecessary air against the eye to be inspected is suppressed. An apparatus includes a corneal shape changing unit configured to change a shape of a cornea of an eye to be inspected by compressing air in a cylinder by using a piston, and puffing the compressed air from the nozzle to the cornea, a piston control unit configured to control operation of the piston, and an intraocular pressure measurement unit configured to measure an intraocular pressure of the eye by detecting a state of a changed shape of the cornea. This apparatus includes a piston volume changing unit configured to change an initial volume when the piston compresses the air in the cylinder.

Abstract: A fundus camera includes an illumination unit to illuminate an ocular fundus of a subject's eye, an autofluorescent exciter filter insertable into and retractable from an illumination optical path of the illumination unit, an observation and photographing unit to receive reflection light from the ocular fundus illuminated by the illumination unit and form an ocular fundus image, an autofluorescent barrier filter insertable into and retractable from an observation and photographing optical path, an image capturing unit to capture an ocular fundus image, and a calculation unit to calculate image data, wherein the calculation unit converts the ocular fundus image which is illuminated using the autofluorescent exciter filter and captured by a color image capturing unit as a color image, in a state that no autofluorescent barrier filter is inserted into the observation and photographing unit, into a monochromatic image from specific color data of each of the pixels.

Abstract: An ophthalmologic photographing apparatus includes an illumination unit configured to illuminate a subject's eye with one of infrared light and visible light, an input unit configured to input a signal to the illumination unit, a measurement unit configured to measure an input time of the signal from the input unit, a detection unit configured to detect that the input time is a predetermined time or longer, and a control unit configured to control the illumination unit according to a detection result by the detection unit to switch from the infrared light to the visible light.

Abstract: An ophthalmologic apparatus including an index projection unit to project an index on a cornea of a subject's eye, an imaging unit to form an image on an imaging plane via an objective lens and capture an image of the index projected on the cornea, and a control unit to control a distance between the subject's eye and the object lens so that a size of the captured index becomes a predetermined size.

Abstract: An ophthalmic apparatus in which a tilt angle of an operating rod corresponds to a position of an inspection unit adapted to inspect an eye to be examined, and a movable range of the inspection unit is wider than a tilt able range of the operating rod, the apparatus comprising: a detection unit adapted to detect the tilt angle of the operating rod by detecting an electrical signal generated by tilting the operating rod; a calculation unit adapted to calculate a position of the inspection unit which corresponds to the tilt angle; a moving unit adapted to move the inspection unit to a position calculated by the calculation unit; and a switching unit adapted to switch between interruption and resumption of calculation processing performed by the calculation unit.

Abstract: A fundus camera includes an illumination optical system that projects a ring-shaped illumination light on a pupil of a subject's eye, an imaging optical system that forms a fundus image of the illumination light on an imaging plane, and an index projection unit that projects an operation distance index on a cornea of the subject's eye. An imaging unit captures a reflection image from the fundus and a reflection image of the operation distance index, a driving unit moves the operation distance index in an optical axis direction, an index shape recognition unit recognizes an index shape projected on the cornea according to a movement of a light emitting surface of the index projection unit by the driving unit, and a detection unit detects operation distances of the illumination optical system and the imaging optical system with respect to the subject's eye.

Abstract: A fundus camera includes an illumination unit to illuminate an ocular fundus of a subject's eye, an autofluorescent exciter filter insertable into and retractable from an illumination optical path of the illumination unit, an observation and photographing unit to receive reflection light from the ocular fundus illuminated by the illumination unit and form an ocular fundus image, an autofluorescent barrier filter insertable into and retractable from an observation and photographing optical path, an image capturing unit to capture an ocular fundus image, and a calculation unit to calculate image data, wherein the calculation unit converts the ocular fundus image which is illuminated using the autofluorescent exciter filter and captured by a color image capturing unit as a color image, in a state that no autofluorescent barrier filter is inserted into the observation and photographing unit, into a monochromatic image from specific color data of each of the pixels.

Abstract: An ophthalmologic observation and photographing apparatus capable of photographing a color image and a fluorescence image includes an illumination unit for illuminating a fundus of a subject's eye, an observation and photographing unit for observing and photographing a specified region of the illuminated subject's eye, a barrier filter insertably mounted to the observation and photographing unit and configured to transmit a fluorescence wavelength range and block excitation light, a color photographing unit including a tri-color separation filter and mounted in the observation and photographing unit, and an index projecting unit for projecting an index light to be photographed by superimposing on an image of the specified region of the subject's eye.

Abstract: A fundus camera includes an illumination unit to illuminate an ocular fundus of a subject's eye, an autofluorescent exciter filter insertable into and retractable from an illumination optical path of the illumination unit, an observation and photographing unit to receive reflection light from the ocular fundus illuminated by the illumination unit and form an ocular fundus image, an autofluorescent barrier filter insertable into and retractable from an observation and photographing optical path, an image capturing unit to capture an ocular fundus image, and a calculation unit to calculate image data, wherein the calculation unit converts the ocular fundus image which is illuminated using the autofluorescent exciter filter and captured by a color image capturing unit as a color image, in a state that no autofluorescent barrier filter is inserted into the observation and photographing unit, into a monochromatic image from specific color data of each of the pixels.

Abstract: An ophthalmologic photographing apparatus includes an illumination unit configured to illuminate a subject's eye with one of infrared light and visible light, an input unit configured to input a signal to the illumination unit, a measurement unit configured to measure an input time of the signal from the input unit, a detection unit configured to detect that the input time is a predetermined time or longer, and a control unit configured to control the illumination unit according to a detection result by the detection unit to switch from the infrared light to the visible light.

Abstract: When a bright spot image A received by an imaging unit is extracted, in step S1, a light emitting surface P of an operational distance index is minutely moved back and forth in an optical axis direction of an imaging optical system toward a cornea. In step S2, bright spots are extracted at a center and maximum positions in back and forth directions of the reciprocation movement. In steps S3 to S5, a size of the bright spot image A at each position is determined, and it is determined whether to move an optical unit forward or backward, or to stop the optical unit based on a relationship between a position of the light emitting surface P and the size of the bright spot image A. In step S5, when it is determined that the optical unit is moved to a proper position, a fundus camera enters into a shooting standby state. In step S8, shooting is performed by pressing a shooting switch.

Abstract: A fundus camera includes an illumination unit to illuminate an ocular fundus of a subject's eye, an autofluorescent exciter filter insertable into and retractable from an illumination optical path of the illumination unit, an observation and photographing unit to receive reflection light from the ocular fundus illuminated by the illumination unit and form an ocular fundus image, an autofluorescent barrier filter insertable into and retractable from an observation and photographing optical path, an image capturing unit to capture an ocular fundus image, and a calculation unit to calculate image data, wherein the calculation unit converts the ocular fundus image which is illuminated using the autofluorescent exciter filter and captured by a color image capturing unit as a color image, in a state that no autofluorescent barrier filter is inserted into the observation and photographing unit, into a monochromatic image from specific color data of each of the pixels.

Abstract: An ophthalmologic apparatus according to an exemplary embodiment of the present invention determines the photography light amount suitable for picking up still images of a fundus and the amplification factor of an image pickup device by obtaining the change in brightness in the fundus.

Abstract: A fundus camera for performing fluorescent image pickup is provided. A timer is started when a fluorescent agent is infused into a body, and a mode of an amplifying ratio control part is set to AGC. AGC is then checked, and fluorescent illuminance curves of respective eyes to be examined are calculated, if the AGC is operating. A fluorescent illuminance value at a fundus is calculated from a gain value on the AGC and a corresponding time which are stored in an amplifying ratio memory, thereby determining a proper exposure value. When the AGC is not operating, the fluorescent illuminance value is calculated from the calculated illuminance curves of the respective eyes to be examined and an output of a timer, thereby determining a proper exposure value. When an image pickup switch is depressed while observing an image, input from the image pickup switch is detected.