disease).Magnifier heads with a diameter greater than 58 mm (Item No. 15539-, 15549-, 15599-) are fitted with a retractable red reading line for easier line orientation and increased reading speed.The
disease).Magnifier heads with a diameter greater than 58 mm (Item No. 15539-, 15549-, 15599-) are fitted with a retractable red reading line for easier line orientation and increased reading speed.The
your best corrected visual acuity. The determination of visual acuity is not only necessary for fitting glasses or contact lenses, but it also provides the basis for optimum selection and individual adjustment