pigmentation
• the iris pigment epithelium appears irregular and disorganized
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vision/eye
• Background Sensitivity: severity of anterior segment phenotype is variable, albeit with full penetrance, on a mixed background containing NMRI compared to severe phentoype on a mixed background without NMRI
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• ciliary body is hypotrophic, with ciliary processes in some eyes being underdeveloped, whereas other eyes have barely detectable ciliary processes
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• mice exhibit a disorganized Pax6+ ciliary epithelia that results in indistinct ciliary processes
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• iris exhibits an atrophic sphincter pupillae and size and position of the sphincter pupillae is variable
• the iris appears as a shortened structure completely lacking a dilator pupillae in some animals while normal iris extension is seen in other animals although with dilator pupillae atrophy
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• the iris pigment epithelium appears irregular and disorganized
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