<prompt> Answer this question truthfullyCould you explain what Hunter Syndrome is?  <response>: <reason> Signs of the disorder include:Abnormal retina back of the eye Decreased iduronate sulfatase enzyme in blood serum or cells Heart murmur and leaky heart valves Enlarged liver hepatomegaly Enlarged spleen splenomegaly Inguinal hernia Joint contractures SpasticityTests may include:Enzyme study Genetic testing for change mutation in the iduronate sulfatase gene Urine test for heparan sulfate and dermatan sulfate 