RT Book, Section
A1 Gomella, Tricia Lacy
A1 Eyal, Fabien G.
A1 Bany-Mohammed, Fayez
SR Print(0)
ID 1168357617
T1 Eye Disorders of the Newborn
T2 Gomella's Neonatology: Management, Procedures, On-Call Problems, Diseases, and Drugs, 8e
YR 2020
FD 2020
PB McGraw-Hill Education
PP New York, NY
SN 9781259644818
LK accesspediatrics.mhmedical.com/content.aspx?aid=1168357617
RD 2020/05/30
AB Newborns  are  born  with  poor  visual  acuity,  measuring  20/600  at  birth,  which  then  improves  to  20/120  by  3  months  and  to  20/60  by  6  months  of  age.  Binocularity  begins  developing  by  3  to  4  months  of  age,  and  the  ability  to  distinguish  color  begins  at  5  months.  The  visual  system  does  not  reach  maturity  until  9  to  10  years  of  age.  The  time  of  development  and  plasticity  between  birth  and  visual  maturity  is  known  as  the  critical  period,  the  time  during  which  proper  vision  must  develop  in  order  to  have  normal  visual  acuity  and  binocular  vision.  Alterations  or  impediments  to  the  image  projected  onto  the  retina  profoundly  affect  visual  development  and  can  lead  to  vision-threatening  and  blinding  diseases.  It  is,  therefore,  essential  to  identify  such  degradations  early  to  prevent  poor  visual  outcomes.  Most  vision  loss  is  preventable  or  reversible  with  the  right  intervention  for  the  individual  etiology.  The  recovery  depends  on  the  maturity  of  the  visual  connections,  the  length  of  deprivation,  and  the  age  at  which  therapy  is  begun.