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| emmetropia; twenty-twenty vision; emmetropy | |||
| 20-20 vision (By looking at lots of people, eye doctors have decided what a "normal" human being should be able to see when standing 20 feet away from an eye chart. If you have 20/20 vision, it means that when you stand 20 feet away from the chart you can see what the "normal" human being can see. (In metric, the standard is 6 meters and it's called 6/6 vision). In other words, your vision is "normal" – most people can see what you see at 20 feet. Antonio) | |||
| normal vision | |||
| 20/20 vision (острота зрения 1,0 AFilinovTranslation) | |||
| нормальное зрение: 22 phrases in 7 subjects |
| Aviation | 1 |
| Aviation medicine | 1 |
| General | 4 |
| Mass media | 6 |
| Medical | 7 |
| Optics branch of physics | 2 |
| Weapons and gunsmithing | 1 |