College - Author 1

College of Engineering

Department - Author 1

Biomedical Engineering Department

Degree Name - Author 1

BS in Biomedical Engineering



Primary Advisor

Christopher Heylman


The slit lamp ophthalmoscope is used by ophthalmologists for diagnosis of pathologies in the eye. The device is used for identifying ocular diseases or indications of other possible systemic diseases to treat them before the diseases progress. Redesign of the ergonomics and adjustment mechanisms of the slit lamp ophthalmoscope will attempt to improve the compatibility of the device across a greater variety of patients. The wider headrest tower of 12.75 inches, the wider table cutout of 12 inches, and the 12 inches of extension of the headrest tower creates a better ergonomic fit for the patient and doctor. The wider headrest tower will decrease the proximity of the doctor’s hand when adjusting the device and give more space to the patient, while the wider table cutout and extension will allow the patient to sit comfortably for longer periods than the previous device. For a quality diagnosis, correct positioning of the ophthalmoscope is required. Deflection tests were done to ensure position of the headrest tower was not compromised during loading. All p-values were less than 0.001 meaning the device can withstand loading of a patient's head without a change in eye position in the microscope view. The ergonomic capability was also tested with the headrest tower to make sure sufficient space was available for the patient to measure our specification for greater comfort in the device. The patient needs to be very still without moving their head position, which is why patient comfort is essential for a quality examination by an ophthalmologist