Measuring the Ocular Morphological Parameters of Guinea Pig Eye with Edge Detection and Curve Fitting

Figure 1

(a) The guinea pig eyeball is merely one-third the size of the human eye. (b) Keratometer (OM-4, Japan, Topcon), it is used to measure CRC. (c) The operator has to keep holding the conscious guinea pig throughout measurement. (d) A/B ultrasound (ODM-2100), which is used for axial length of small experimental animals currently. (e, f) The coronal and sagittal plane of the eyeball in vitro. The guinea pig eyes were very soft; it is easy to deform. Thus, it was impossible to measure with calipers directly.

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