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Figure 1 | Diagnostic Pathology

Figure 1

From: The influence of corneal astigmatism on retinal nerve fiber layer thickness and optic nerve head parameter measurements by spectral-domain optical coherence tomography

Figure 1

An example of a measurement of the retinal nerve fiber layer characteristics in an right eye with a-6.625D of spherical equivalent, a -1.6 of CA and a 26.42mm of axial length: (a) Fundus photograph of the optic disc. Dotted line represents imaginary horizontal meridian; (b) the peak locations at the superior and inferior area were 40 and 212, respectively; (c) the peak locations were translated to units of degrees by multiplying 360/256. Angles between the horizontal meridian and the superotemporal / inferotemporal peak locations were defined as the α (superotemporal) and β (inferotemporal) angles, so RNFL peak locations of this eye were α = 40 × 360/256 = 56.25(degree), β = 360-212 × 360/256 = 61.88(degree).

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Diagnostic Pathology

ISSN: 1746-1596

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