We at D SA Exports offers Trial Frame - constructed for durability and long life, while being lightweight and comfortable to wear. The practical screw-thread design on all fittings allows for easy replacement of springs, templates and other components when the frame remore...
Trial Frame that holds trial lenses used during retinoscopy or refraction tests on the eye. 2 main kind of Trial frames: PD fixed trial frames axis and several lens holders. A simple trial frame is used with a retinoscope to determine refractive errors. Lens of varying focamore...