| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of determining a correction for distortion in eye representations of an ophthalmoscope.SOLUTION: A method of determining a correction for distortion in eye representations of an ophthalmoscope comprises: (i) a step 30 of constructing an optical description of a system comprising the ophthalmoscope and a model eye; (ii) a step 32 of passing a ray through the system onto a surface of the model eye; (iii) a step 34 of calculating an actual measurement of the ray at the surface; (iv) a step 36 of determining a horizontal scanning angle and a vertical scanning angle of the system for the ray; (v) a step 38 of calculating an expected measurement of the ray at the surface using the horizontal scanning angle and vertical scanning angle of the system; (vi) a step 40 of repeating steps (ii) to (v) for a plurality of further rays; and (vii) a step 42 of comparing the actual measurements of the rays at the surface with corresponding expected measurements of the rays at the surface to determine the correction for distortion in eye representations of the ophthalmoscope. |
