OM t of c.iii - Vision Research Coordinating Center - Washington ...

1/1/2005 Chapter 8 Corneal Curvature and Topography page 8-4
Table 8-1. Extending the range of the keratometer with a +1.25 D lens.
Drum reading Corneal power in
diopters
43.00 50.13
43.12 50.28
43.25 50.43
43.37 50.57
43.50 50.72
43.62 50.86
43.75 51.01
43.87 51.15
44.00 51.30
44.12 51.45
44.25 51.59
44.37 51.74
44.50 51.88
44.62 52.03
44.75 52.17
44.87 52.32
45.00 52.47
45.12 52.61
45.25 52.76
45.37 52.90
45.50 53.05
45.62 53.19
45.75 53.34
45.87 53.49
46.00 53.63
46.12 53.78
46.25 53.92
46.37 54.07
46.50 54.21
46.62 54.36
46.75 54.51
46.87 54.65
47.00 54.80
47.12 54.94
47.25 55.09
47.37 55.23
47.50 55.38
47.62 55.53
47.75 55.67
47.87 55.82
48.00 55.96
48.12 56.11
48.25 56.25
48.37 56.40
48.50 56.55
48.62 56.69