Refractive error and vision in fishes.
The eyes of living immersed herring and silversides are farsighted and require greater hypermetropic correction for lateral vision than for anterior vision. Comparisons of lens-to-retina distances in frozen material with focal lengths of lenses are consistent with the degree of hypermetropy found by retinoscopy.
D005123:Eye; D005399:Fishes; D006801:Humans; D007908:Lens, Crystalline; D012029:Refraction, Ocular; D012030:Refractive Errors; D012160:Retina; D014785:Vision, Ocular
FISH; REFRACTION OCULAR; VISION