vision/eye
• density of cells is decreased, indicating a decreased number of rod bipolar cells compared to controls
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• number of synaptic endings (with lobular appendage morphology) in S1 layer of ICL in controls is significantly higher than in mutants
• number of synaptic endings in S2 and S3 are significantly increased in mutants compared to controls
• in S4 and S5, total number of type AII dendrites is reduced relative to controls
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• cone mediated-responses are reduced in amplitude and delayed in mutants; difference compared to wild-type cone function is not as great as differences in rod function
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• amplitude of a-wave of ERG in response to bright light flash is smaller than in controls while the b-wave is significantly reduced
• oscillatory potentials (OPs) are reduced in amplitude
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nervous system
• density of cells is decreased, indicating a decreased number of rod bipolar cells compared to controls
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