1. An image processing apparatus comprising: an alignment unit configured to align a first fundus oculi image and a second fundus oculi image by using a third fundus oculi image, the first fundus oculi image being an aberration-corrected image of an eye being examined, the second fundus oculi image being an image having a larger view angle and a lower resolution than the first fundus oculi image, the third fundus oculi image being an image having a smaller view angle and a higher resolution than the second fundus oculi image; a distance acquisition unit configured to acquire a distance from a macula lutea of the eye being examined to a certain position in the first fundus oculi image aligned by the alignment unit; and an evaluation unit configured to evaluate the state of the eye being examined from the distance and information concerning photoreceptor cells included in the first fundus oculi image.