Know The Glow ®


Know the Glow is a global nonprofit leader in identifying preventable glow-related childhood eye diseases.

We empower parents to see their child’s vision in a new light by raising awareness about The Glow (medically known as leukocoria) and encouraging them to make sure their young children receive comprehensive eye exams by an eye specialist.

When caught early, more than 80% of all childhood blindness is preventable


Share Your Glow Story

80% of the time a parent
or family member is the
first to identify “The Glow”
in a child’s eye.


80% of all childhood blindness is
preventable or curable.


1 in 80 children may show the glow
before age nine.

Glow Videos

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Glow Identification

Know The Glow


Diseases common to “The Glow”:

  • Amblyopia
  • Brown Syndrome
  • Cataract
  • Choroidal Osteoma
  • Coats’ Disease
  • Coloboma
  • Congenital Cataract
  • FEVR
  • Intraocular Medulloepithelioma
  • Norrie Disease
  • PHPV
  • Refractive Error
  • Retinal Detachment
  • Retinal Dysplasia
  • Retinopathy of Prematurity (ROP)
  • Retinoblastoma
  • Strabismus
  • Toxocariasis
  • Trauma


Back To School

Posted on 2018-09-11

The summer is fading fast and those long lazy evenings on the porch are morphing into harried afternoons shuttling kids to and from their various activities. The school year is fully upon us.In between gathering their new school shoes and fresh pages of notebooks, take a minute to make sure your children are fully prepared… Read more »

Common Signs of Vision Troubles in Children

Posted on 2018-08-28

Your daughter keeps rubbing her eyes, and every time your son looks at something in the distance he squints and slightly tilts his head. Are these simply symptoms of allergies, tiredness, and day time light, or are they signs of a larger issue? In order to know if your child has vision troubles, we recommend… Read more »

Join the Know the Glow Community Group!

Posted on 2018-07-20

Hello Everyone! We are so incredibly excited to be launching our KTG Facebook Community Group and we are looking forward to having your help in directing its growth! We have always wanted to create a forum for KTG parents to share ideas, thoughts, suggestions, and advice in a more informal setting.  While we want to… Read more »