A device for aligning a subject's eye with an optical axis of an ocular imaging device comprising: a. a housing comprising a first end, a second end, an outer surface, and an inner surface, wherein the inner surface defines a luminal space and wherein the luminal space is configured to allow for passage of the optical axis therethrough; b. a plurality of guide light assemblies disposed within the housing, each guide light assembly comprising: i. a body comprising a first side and a second side opposite the first side, wherein the second side faces the luminal space; ii. a channel defined in the body, wherein the channel extends from the body first side to the body second side, wherein the channel forms an opening in the body second side; iii. a guide light disposed within the channel, wherein the guide light is configured to emit light out of the opening; and iv. a baffle disposed transversely in the channel between the guide light and the opening and configured to mask light from the guide light, wherein the baffle further comprises a slit configured to allow passage of light along a path of ocular alignment; and c. a plurality of secondary baffle assemblies disposed on the housing second end, wherein each of the plurality of second baffle assemblies is configured to mask light emitted from one of the plurality of guide light assemblies, wherein each of secondary baffle assemblies further comprises a slit configured to allow passage of light along a second path of ocular alignment, wherein the light from each of the plurality of guide light assemblies is visible to the subject when the subject's eye is in alignment with respect to the optical axis of the ocular imaging device and not visible when the subject's eye is out of alignment with respect to the optical axis of the ocular imaging device. a. a housing comprising a first end, a second end, an outer surface, and an inner surface, wherein the inner surface defines a luminal space and wherein the luminal space is configured to allow for passage of the optical axis therethrough; b. a plurality of guide light assemblies disposed within the housing, each guide light assembly comprising: i. a body comprising a first side and a second side opposite the first side, wherein the second side faces the luminal space; ii. a channel defined in the body, wherein the channel extends from the body first side to the body second side, wherein the channel forms an opening in the body second side; iii. a guide light disposed within the channel, wherein the guide light is configured to emit light out of the opening; and iv. a baffle disposed transversely in the channel between the guide light and the opening and configured to mask light from the guide light, wherein the baffle further comprises a slit configured to allow passage of light along a path of ocular alignment; and i. a body comprising a first side and a second side opposite the first side, wherein the second side faces the luminal space; ii. a channel defined in the body, wherein the channel extends from the body first side to the body second side, wherein the channel forms an opening in the body second side; iii. a guide light disposed within the channel, wherein the guide light is configured to emit light out of the opening; and iv. a baffle disposed transversely in the channel between the guide light and the opening and configured to mask light from the guide light, wherein the baffle further comprises a slit configured to allow passage of light along a path of ocular alignment; and c. a plurality of secondary baffle assemblies disposed on the housing second end, wherein each of the plurality of second baffle assemblies is configured to mask light emitted from one of the plurality of guide light assemblies, wherein each of secondary baffle assemblies further comprises a slit configured to allow passage of light along a second path of ocular alignment,