For fighter pilots, it is a minimum requirement. But having 20/20 ‘visual acuity’ (correct term) does not necessarily mean you have perfect vision (as convention assumes); instead, it indicates sharpness and clarity of vision at a distance. It is measured by a Snellen Chart, which displays letters of progressively smaller size and whereby 20/20 means that the test subject sees the same line of letters at 20 feet that a person with normal vision sees at 20 feet (or 6 metres; but 6/6 simply didn’t catch on).
08 Jan 2020
UK Housebuilding Sector: 2020 vision: Sharpness and clarity for industry prospects
Barratt Developments PLC (BDEV:LON), 472 | Bellway p.l.c. (BWY:LON), 2,725 | Berkeley Group Holdings plc (BKG:LON), 4,614 | Vistry Group PLC (VTY:LON), 1,208 | Cairn Homes PLC (CRN:LON), 132 | Crest Nicholson Holdings Plc (CRST:LON), 224 | MJ Gleeson PLC (GLE:LON), 516 | Glenveagh Properties Plc (GLV:LON), 124 | Persimmon Plc (PSN:LON), 1,288 | Redrow plc (RDW:LON), 661 | Springfield Properties PLC (SPR:LON), 92.5 | Taylor Wimpey plc (TW:LON), 140 | Watkin Jones Plc (WJG:LON), 42.1
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UK Housebuilding Sector: 2020 vision: Sharpness and clarity for industry prospects
Barratt Developments PLC (BDEV:LON), 472 | Bellway p.l.c. (BWY:LON), 2,725 | Berkeley Group Holdings plc (BKG:LON), 4,614 | Vistry Group PLC (VTY:LON), 1,208 | Cairn Homes PLC (CRN:LON), 132 | Crest Nicholson Holdings Plc (CRST:LON), 224 | MJ Gleeson PLC (GLE:LON), 516 | Glenveagh Properties Plc (GLV:LON), 124 | Persimmon Plc (PSN:LON), 1,288 | Redrow plc (RDW:LON), 661 | Springfield Properties PLC (SPR:LON), 92.5 | Taylor Wimpey plc (TW:LON), 140 | Watkin Jones Plc (WJG:LON), 42.1
- Published:
08 Jan 2020 -
Author:
Tony Williams -
Pages:
40
For fighter pilots, it is a minimum requirement. But having 20/20 ‘visual acuity’ (correct term) does not necessarily mean you have perfect vision (as convention assumes); instead, it indicates sharpness and clarity of vision at a distance. It is measured by a Snellen Chart, which displays letters of progressively smaller size and whereby 20/20 means that the test subject sees the same line of letters at 20 feet that a person with normal vision sees at 20 feet (or 6 metres; but 6/6 simply didn’t catch on).