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Retinal and lenticular lesions in vitamin‐C‐deficient juvenile red drum, Sciaenops ocellatus (L.)
Author(s) -
COLLINS B. K.,
COLLIER L. L.,
COLLINS J. S.
Publication year - 1993
Publication title -
journal of fish diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 85
eISSN - 1365-2761
pISSN - 0140-7775
DOI - 10.1111/j.1365-2761.1993.tb01252.x
Subject(s) - ascorbic acid , biology , retinal , retinal degeneration , juvenile , anatomy , degeneration (medical) , ophthalmology , medicine , biochemistry , genetics , food science
Ocular pathologic findings in eyes of ascorbic acid‐deficient juvenile red drum, Sciaenops ocellatus (L.), are described. Abnormalities in the most severely affected eyes included: reduced globe size and lack of normal globe rigidity; vascular congestion and intraocular haemorrhage; lenticular lesions which included disorganization of posterior cortex, vacuolation of posterior subcapsular cortex and posterior migration of lens epithelium; and severe central retinal degeneration. The authors suspect that retinal degeneration was related to phototoxic injury, to which these fish had increased susceptibility as a result of ascorbic acid deficiency. The cause for lenticular lesions was undetermined, but may have been related directly to ascorbic acid deficiency, indirectly to retinal degeneration, or both.