INTRAOCULAR OBSERVATION APPARATUS

Japanese Patent JP3563854

B2

PROBLEM TO BE SOLVED: To observe a diaphanoscopy image except for a cornea reflection spot by dividing an image of an image memory means into an anterior ocular segment image containing a cornea reflection image and an interior ocular segment image containing none based on coordinates of a cornea reflection mirror determined from an image stored previously to synthesize the images and those updated.
SOLUTION: In the observation of a diaphanoscopy image, a switching is made to a diaphanoscopy image observation mode to turn on a light source 1 for measuring optical refractivity and light sauces 10a and 10b for lighting an anterior ocular segment and a light source 18 for lighting a fixation target are dimmed. The area of a pupil Ep is lighted by reflected light from eyegrounds Er to form an image on an image sensor 20 as diaphanoscopy image. Then, an output scanned from the image sensor 20 is passed through an amplifier and an A/D converter to be store a screen at a specified area in one frame into an image memory. The coordinates of the cornea reflection image are determined from the image previously stored to divide the image of the image memory into an anterior ocular segment image containing the cornea reflection image and an anterior ocular segment image containing none based on the results and the anterior ocular segment image containing no cornea reflection image is shown on a display means.

JP2014094182	OPHTHALMOLOGIC APPARATUS AND ALIGNMENT DETERMINATION METHOD
WO/2004/045399	METHOD AND INSTALLATION FOR DETECTING AND FOLLOWING AN EYE AND THE GAZE DIRECTION THEREOF

Kyoji Sekiguchi

JP35027895A

September 08, 2004

December 22, 1995

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Canon Inc

A61B3/10; (IPC1-7): A61B3/10

JP5237062A
JP63216528A
JP5154109A
JP7075622A
JP4244133A

Yasuhiko Hibiya

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