Retina Imager and Laser Beamer RILaB

livEn's Retina Imager and Laser Beamer (RILaB), is a semi-automated control system that is able to have a clinician guide its  operation for laser eye therapies. There are many laser eye therapies that this project can apply to, such as Pan Retinal Photocoagulation (PRP) and PhotoDynamic Therapy (PDT). These therapies are currently controlled manually by ophthalmologists and clinicians. Our product aims to aid in automating and speeding up a key part of this process. This will alleviate a portion of their workload and allow medical residency students to perform these therapies themselves. To achieve this goal, livEn is creating RILaB to integrate a fundus camera, a high-powered laser, and an optical scanning mirror with our control algorithm. Our algorithm will acquire a fundus retinal image using the camera and process it to create a high-level segmentation of regions for laser treatment and healthy tissue avoidance. The regions may then be further refined and confirmed by a clinician. The appropriate regions in the patient's retina can then be targeted by the laser using appropriate coordinates derived from our algorithm. These coordinates guide the laser beam via an optical scanning mirror. With the highest priority is on safety, we also have our algorithm decide when it is safe to fire the laser and allow the clinician to make the final call. The laser then begins titrating its firing power from low to high depending on the degree of burn needed. The control system does not consider elements such as a mounted contact lens to keep the patient's eyes open, and head/chin rests to keep the motion of their head still. This document describes the specifications that such a device must adhere to in order to allow ophthalmologists and clinicians to perform the above functions efficiently and safely while improving the speed, efficiency, and ease of use for such a system. These specifications are grouped in terms of software, hardware, safety, sustainability, and engineering standards.