RT Book, Section
A1 Ropper, Allan H.
A1 Samuels, Martin A.
A1 Klein, Joshua P.
SR Print(0)
ID 57612662
T1 Chapter 13. Disturbances of Vision
T2 Adams and Victor's Principles of Neurology, 10e
YR 2014
FD 2014
PB The McGraw-Hill Companies
PP New York, NY
SN 978-0071794794
LK neurology.mhmedical.com/content.aspx?aid=57612662
RD 2023/09/28
AB The  importance  of  the  visual  system  is  attested  by  the  magnitude  of  its  representation  in  the  central  nervous  system  (CNS).  A  large  part  of  the  cerebrum  is  committed  to  vision,  including  the  visual  control  of  movement  and  the  perception  of  printed  words,  and  the  form  and  color  of  objects.  The  optic  nerve,  which  is  a  CNS  structure,  contains  more  than  a  million  fibers  (compared  to  50,000  in  the  auditory  nerve).  The  visual  system  also  has  special  significance  in  that  study  of  this  system  has  greatly  advanced  our  knowledge  of  both  the  organization  of  all  sensory  neuronal  systems  and  the  relation  of  perception  to  cognition.  Indeed,  we  know  more  about  vision  than  about  any  other  sensory  function.  Furthermore,  the  eyes,  because  of  their  diverse  composition  of  epithelial,  vascular,  neural,  and  pigmentary  tissues,  are  virtually  a  medical  microcosm,  susceptible  to  many  diseases,  and  its  tissues  are  available  for  inspection  through  a  transparent  medium.