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Br J Ophthalmol 82:643-649 doi:10.1136/bjo.82.6.643
  • Original Article
    • Clinical science

Measurement of optic disc size: equivalence of methods to correct for ocular magnification

Table 4

Standard deviation of the “error” for each method

Standard deviation of “errors” (%)
Data set (1) (2) (3)
L (1) 3.2 4.2 4.6
BK (3) 3.0 4.3 4.5
W (1) 3.0 4.2 4.4
HRT 2.9 4.2 4.3
New 2.9 4.2 4.3
BRE (2) 0.6 0.7 0.9
BK (1) 0.6 0.8 0.9
W (2) 0.6 0.8 0.9
L (2) 0.9 1.1 1.2
BK (2) 3.6 5.0 5.3
Constant 4.4 6.8 5.6

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