Methods, systems, and devices for determining a status of brain and/or nerve functions of a patient

A system for examining a pupil of a patient, comprising:

• at least one hardware processor in communication with at least one image capturing device configured to capture a plurality of consecutive frames of a pupil of a patient through a closed eyelid of the patient;
• a non-transitory computer-readable storage medium having stored thereon program code, the program code executable by the at least one hardware processor to:
• receive the plurality of consecutive frames of the pupil of the patient;
• identify, for pixels within the plurality of consecutive frames, a minimal gray level value throughout the plurality of consecutive frames;
• generate a minimal gray level frame based, at least in part, on the identified minimal gray level values of the pixels;
• subtract the gray level values of pixels within the minimal gray level frame from gray level values of corresponding pixels within the rest of the frames of the plurality of consecutive frames, thereby generating a processed plurality of consecutive frames;
• locate the pupil of the patient within at least one frame of the processed plurality of consecutive frames;
• calculate the size of the pupil of the patient;
• track a location of the identified pupil in real time in at least a portion of the plurality of consecutive frames, wherein tracking the location comprises determining a frequency and/or a degree of movement of the pupil by tracking a change in coordinates of the pixels within a segment identified as being associated with the pupil;
• and
• determine a status of brain and/or nerve functions of the patient based, at least in part, on the calculated size of the pupil of the patient, wherein determining the status comprises determining whether the status of brain and/or nerve functions is normal or abnormal.