21 февр. 2022 г. · A diopter is a reciprocal metres. So you can see sharply up to 1/2 metre away. You need -2.00 diopter lenses to see to infinity. |
13 июн. 2020 г. · 20/20 measures visual acuity. -2.0 diopters indicates you need a lens with a focal length of -50 cm to see clearly. They are not measurements of ... |
5 мая 2020 г. · 20/20 measures visual acuity. -2.0 diopters indicates you need a lens with a focal length of -50 cm to see clearly. They are not measurements ... |
23 апр. 2023 г. · 20/20 measures visual acuity. -2.0 diopters indicates you need a lens with a focal length of -50 cm to see clearly. They are not measurements ... |
6 авг. 2020 г. · 20/20 measures visual acuity. -2.0 diopters indicates you need a lens with a focal length of -50 cm to see clearly. They are not measurements of the same thing. |
8 июн. 2023 г. · 20/20 measures visual acuity. -2.0 diopters indicates you need a lens with a focal length of -50 cm to see clearly. They are not measurements ... |
16 сент. 2022 г. · If you have a prescription of -1.50, you would lose around 6 lines of vision, which would take you to around 20/50. |
27 мар. 2021 г. · On the other hand, there are refractive surgery procedures that may permanently eliminate your -20 myopia. Being unsure which “corrected” you ... |
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