TY  - CHAP
M1  - Book, Section
TI  - Lid and Lacrimal System Disorders
A1  - Hamill, Eric B.
A1  - Marx, Douglas P.
A2  - Kline, Mark W.
PY  - 2018
T2  - Rudolph's Pediatrics, 23e
AB  - The  eyelids  are  an  important  part  of  the  ocular  adnexa.  They  provide  a  mechanical  barrier  against  the  environment,  distribute  the  tear  film,  and  remove  debris  from  the  ocular  surface.  In  the  normal  eyelid,  the  margins  should  be  symmetric  and  parallel  to  one  another.  The  upper  margin  should  rest  1  to  2  mm  below  the  superior  edge  of  the  cornea,  and  the  lower  margin  should  rest  at  the  inferior  edge  of  the  cornea.  Generally,  the  lateral  canthus  is  positioned  approximately  1  mm  higher  than  the  medial  canthus,  giving  a  slight  upward  slant  to  the  palpebral  fissure  as  one  moves  laterally.  
SN  - 
PB  - McGraw-Hill Education
CY  - New York, NY
Y2  - 2024/04/20
UR  - accesspediatrics.mhmedical.com/content.aspx?aid=1182926788
ER  -