Growth of the adult goldfish eye--I: Optics
1977
Easter, Jr | Stephen S. | Johns, Pamela Raymond | Baumann, L. R.
We have measured the optical and retinal fields of goldfish eyes; the animals ranged from 6 to 20 cm in body length. Both fields are spherically symmetric, invariant with the size of the eye, and equal (retinal FIELD = 185.3[deg] +/- 4.1[deg], optical FIELD = 183.6[deg] +/- 2.7[deg], means +/- S.D.). They are tilted with respect to one another by a few (< 10) degrees. We have also measured the retinal magnification factor, the number of [mu]m per degree on the retinal surface. It is 20.5 x lens diameter, where lens diameter is expressed in mm.
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