Independently perform full-field, multifocal, and pattern electroretinography (ERG) and other specialized ophthalmic diagnostic tests according to established protocols.Review test orders and relevant clinical information to verify the appropriate testing procedure.Prepare and educate patients about testing procedures, answer questions, and promote patient comfort and cooperation throughout the examination.Complete required light and dark adaptation procedures and place electrodes using appropriate safety and infection-control practices.Obtain accurate, reliable, and reproducible results by monitoring test quality, identifying artifacts, and repeating recordings when necessary.Recognize unexpected or urgent findings and promptly notify the supervising ophthalmologist or clinical team.Accurately document procedures, patient responses, technical limitations, and test completion in the electronic health record.Upload, label, and route test data appropriately for physician review while maintaining patient confidentiality.Clean, calibrate, maintain, and troubleshoot ERG equipment, electrodes, and related testing supplies.Monitor inventory and coordinate the ordering, replacement, or repair of equipment and supplies.Follow departmental, safety, infection-prevention, and manufacturer protocols.Coordinate ERG appointments and support efficient patient flow for the retinal dystrophy service.Collaborate with ophthalmologists, nurses, genetic counselors, photographers, and other members of the multidisciplinary care team.Train, mentor, and assess the competency of ophthalmic technicians and other designated personnel in ERG preparation, testing techniques, documentation, equipment operation, and equipment care.Develop or update training materials, standard operating procedures, and competency checklists for ERG testing.Provide ongoing coaching and refresher training to promote consistent, high-quality testing practices.Participate in quality-assurance activities, protocol development, workflow improvements, and continuing education.Perform additional senior-level ophthalmic technician duties within the position?s established scope of practice.