The Arclight direct ophthalmoscope-otoscope and Arclight Holo binocular indirect ophthalmoscope (BIO) were both developed by St Andrews Medical Innovations, a wholly owned subsidiary of the University of St Andrews.These compact, truly portable diagnostic devices offer high functionality in a cost-effective design. They are sold at a higher price in wealthier countries,helping to lower the cost in low-resource settings and improve access to essential eye and ear care tools worldwide