Normal Vision - Stanford Children's Health

Notice of West building lobby closure at Lucile Packard Children’s Hospital Stanford

• MyChart
• Second Opinion
• Donate
• En Español

• Services

  Services Home

  Enter a service or condition Search for services

  Browse services by letter

  Featured Services

  • Betty Irene Moore Children's Heart Center
  • Bass Childhood Cancer Center
  • Brain and Behavior Center
  • Children's Orthopedic and Sports Medicine Center
  • Johnson Center for Pregnancy and Newborn Services
  • Transplant Center
  • Stanford Medicine Children's Health Center for IBD and Celiac Disease
  • General Pediatrics
• Doctors

  Search Doctors

  Name or specialty

  Browse by Last Name:

• Locations

  Locations Home

  Search

  Location name or service Location name or service City or ZIP Code 5 miles 10 miles 20 miles 50 miles 100 miles 250 miles Distance Browse Locations By Type Of Care
  • Pediatrics
  • Specialty
  • Obstetrics

  Care is close by. Find a Stanford Medicine Children's Health location near you.

• Research & Innovation

  Research & Innovation Home

  • Virtual Reality
  • The Stanford Virtual Heart
  • ROSA™ Robotic Surgical Assistant Technology for Pediatric Neurosurgery
  • Chariot Program
  • 3D Virtual Imaging Technology
  • Project Brave Heart

  Healthy eating and activity reverse aging marker in kids with obesity

• Patients & Families

  Patients & Families Home

  • Welcome Guide
  • Community Classes and Support for Parents
  • Admitting and Clinic Registration
  • Food and Gifts
  • Visiting Information and Guidelines
  • Patient and Family Services
  • Financial and Insurance Information
  • Help Paying Your Bill
  • Medical Records

  Enhancing patient care with AI

• Health Professionals

  Health Professionals Home

  • Referring, Admitting and Transferring a Patient
  • Nursing at Stanford Medicine Children's Health
  • Medical Staff Services
  • Continuing Medical Education
  • Parent Mentor Learning Center

  The Center for Professional Excellence and Inquiry (CPEI) offers classes for health care professionals. Register today!

• Help me find... Popular searches Request an Appointment Find a Doctor Pediatric Cardiology Protecting Yourself During Respiratory Illness Season Parking and Maps of the Hospital Search

  Popular searches

  • Request an Appointment
  • Find a Doctor
  • Pediatric Cardiology
  • Protecting Yourself During Respiratory Illness Season
  • Parking and Maps of the Hospital

× Close

What is normal vision?

To understand how certain problems can affect your child's vision, it’s important to know how normal vision happens. For children with normal vision, the following things happen in this order:

1. Light enters the eye through the cornea. This is the clear, dome-shaped surface that covers the front of the eye.

2. From the cornea, the light passes through the pupil. The iris, or the colored part of your eye, controls the amount of light passing through.

3. From there, it then hits the lens. This is the clear structure inside the eye that focuses light rays onto the retina.

4. Next, light passes through the vitreous humor. This is the clear, jelly-like substance that fills the center of the eye. It helps to keep the eye round in shape.

5. Finally, the light reaches the retina. This is the light-sensitive nerve layer that lines the back of the eye.

6. The optic nerve is then responsible for carrying the signals to the visual cortex of the brain. The visual cortex turns the signals into images.

Related Links

• Eyes & Vision
• Neuro-Ophthalmology
• Ocular Oncology

Share Print

• Anatomy of the Eye
• Cataracts in Children
• Retinoblastoma in Children

Related Topics

Vision

Vision Milestones

Preventing Eye Strain at the Computer

Connect with us:

Download our App:

• ABOUT STANFORD MEDICINE CHILDREN'S HEALTH
  • Leadership Team
  • News
  • Vision, Mission & Values
  • The Stanford Advantage
  • Government and Community Relations
  • About Us
  • Privacy Policy

• LUCILE PACKARD FOUNDATION FOR CHILDREN'S HEALTH
  • Donate
  • Foundation
  • Get Involved
  • Volunteer Services
  • Auxiliaries & Affiliates

Careers Contact Us Send a Greeting Card Help Paying Your Bill

© 123 Stanford Medicine Children’s Health

Notice of Nondiscrimination Terms of Use Website Privacy Policy Code of Conduct Price Transparency Stanford School of Medicine Stanford Health Care Stanford University