An ophthalmic device (10-1; 10-2) comprising: an illumination module (1-1; 1-2) arranged to scan light across a region of the retina of a subject's eye to illuminate said region when the pupil of the eye is disposed at a focal point of the illumination module (1-1; 1-2), the illumination module (1-1; 1-2) comprising: a reflecting face arranged to reflect light emitted by an emission section and to scan the light in a specific direction by changing orientation; and a concave mirror face arranged to reflect the light that has been reflected by the reflecting face onto the retina of the subject's eye when the subject's eye is placed at a focal point of the concave mirror face during use of the ophthalmic device (10-1; 10-2); a pupil alignment module arranged to align the pupil of the eye with the focal point; a pupil alignment maintenance module (3-1; 3-2) arranged to, following the alignment of the pupil with the focal point by the pupil alignment module, monitor a position of the pupil relative to the focal point and maintain the alignment of the pupil with the focal point based on the monitored position; a retina scan location alignment module (4-1; 4-2) arranged to align a scan location of the illumination module (1-1; 1-2) on the retina to a target scan location while the alignment of the pupil with the focal point is being maintained by the pupil alignment maintenance module (3-1; 3-2), wherein the illumination module (1-1; 1-2) is arranged to perform a scan at the target scan location to illuminate a region of the retina at the target scan location; and a retina scan location maintenance module (5-1; 5-2) arranged to maintain the scan location at the target scan location by performing, while the alignment of the pupil with the focal point is being maintained by the pupil alignment maintenance module (3-1; 3-2), processes of: acquiring retinal feature information from a monitored portion of the retina; processing the acquired retinal feature information to generate scan location correction information; and maintaining the scan location at the target scan location using the generated scan location correction information. an illumination module (1-1; 1-2) arranged to scan light across a region of the retina of a subject's eye to illuminate said region when the pupil of the eye is disposed at a focal point of the illumination module (1-1; 1-2), the illumination module (1-1; 1-2) comprising: a reflecting face arranged to reflect light emitted by an emission section and to scan the light in a specific direction by changing orientation; and a concave mirror face arranged to reflect the light that has been reflected by the reflecting face onto the retina of the subject's eye when the subject's eye is placed at a focal point of the concave mirror face during use of the ophthalmic device (10-1; 10-2); a reflecting face arranged to reflect light emitted by an emission section and to scan the light in a specific direction by changing orientation; and a concave mirror face arranged to reflect the light that has been reflected by the reflecting face onto the retina of the subject's eye when the subject's eye is placed at a focal point of the concave mirror face during use of the ophthalmic device (10-1; 10-2); a pupil alignment module arranged to align the pupil of the eye with the focal point; a pupil alignment maintenance module (3-1; 3-2) arranged to, following the alignment of the pupil with the focal point by the pupil alignment module, monitor a position of the pupil relative to the focal point and maintain the alignment of the pupil with the focal point based on the monitored position; a retina scan location alignment module (4-1; 4-2) arranged to align a scan location of the illumination module (1-1; 1-2) on the retina to a target scan location while the alignment of the pupil with the focal point is being maintained by the pupil alignment maintenance module (3-1; 3-2), wherein the illumination module (1-1; 1-2) is arranged to perform a scan at the target scan location to illuminate a region of the retina at the target scan location; and a retina scan location maintenance module (5-1; 5-2) arranged to maintain the scan location at the target scan location by performing, while the alignment of the pupil with the focal point is being maintained by the pupil alignment maintenance module (3-1; 3-2), processes of: acquiring retinal feature information from a monitored portion of the retina; processing the acquired retinal feature information to generate scan location correction information; and maintaining the scan location at the target scan location using the generated scan location correction information. acquiring retinal feature information from a monitored portion of the retina; processing the acquired retinal feature information to generate scan location correction information; and maintaining the scan location at the target scan location using the generated scan location correction information.