A fundus observation apparatus comprising: a projection part that includes a display part to display a visual target for measuring eyesight, and projects, via a predetermined optical path, said displayed visual target for measuring eyesight to the fundus of an eye; a light source that outputs low-coherence light; an optical system that splits said output low-coherence light into signal light and reference light, generates interference light by superposing said signal light that has passed through said fundus via said predetermined optical path and said reference light that has passed through a reference optical path, and detects said interference light; a scanning part that scans said fundus with said signal light; a controlling part that overlaps the projection region of said visual target for measuring eyesight projected by said projection part and the scanning region of said signal light scanned by said scanning part each other; an image forming part that forms an image of said fundus based on the detection results of interference light generated by superposing said signal light with which said scanning region is scanned and said reference light; a storage part that stores said formed image and an eyesight value measured using said visual target for measuring eyesight while correlating them with each other, said controlling part controls said projection part based on the scanning region of said signal light scanned by said scanning part to overlap the projection region of said visual target for measuring eyesight in said fundus on the scanning region of said signal light, characterized in that said display part displays a fixation target for fixing said eye along with said visual target for measuring eyesight; said projection part projects said displayed fixation target on said fundus along with said visual target for measuring eyesight; and said controlling part changes said projection region by changing, based on said scanning region, the relative display positions of said visual target for measuring eyesight and said fixation target displayed by said display part. a projection part that includes a display part to display a visual target for measuring eyesight, and projects, via a predetermined optical path, said displayed visual target for measuring eyesight to the fundus of an eye; a light source that outputs low-coherence light; an optical system that splits said output low-coherence light into signal light and reference light, generates interference light by superposing said signal light that has passed through said fundus via said predetermined optical path and said reference light that has passed through a reference optical path, and detects said interference light; a scanning part that scans said fundus with said signal light; a controlling part that overlaps the projection region of said visual target for measuring eyesight projected by said projection part and the scanning region of said signal light scanned by said scanning part each other; an image forming part that forms an image of said fundus based on the detection results of interference light generated by superposing said signal light with which said scanning region is scanned and said reference light; a storage part that stores said formed image and an eyesight value measured using said visual target for measuring eyesight while correlating them with each other, said controlling part controls said projection part based on the scanning region of said signal light scanned by said scanning part to overlap the projection region of said visual target for measuring eyesight in said fundus on the scanning region of said signal light, characterized in that said display part displays a fixation target for fixing said eye along with said visual target for measuring eyesight; said projection part projects said displayed fixation target on said fundus along with said visual target for measuring eyesight; and said controlling part changes said projection region by changing, based on said scanning region, the relative display positions of said visual target for measuring eyesight and said fixation target displayed by said display part.