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
  • Pinguecula
  • Refractive Error
  • Retinal Detachment
  • Retinal Dysplasia
  • Retinopathy of Prematurity (ROP)
  • Retinoblastoma
  • Strabismus
  • Toxocariasis
  • Trauma


Glow of the Month: Congenital Cataracts

Posted on 2019-08-15

This month, Know The Glow is highlighting congenital cataracts — specifically visually significant congenital cataracts, which affects three to four newborns per 10,000 births in the United States and is the cause of 10 percent of childhood permanent blindness worldwide. Doctors in developed countries usually screen newborns for congenital (present at birth) cataracts, but even… Read more »

When kids say no to glasses—try these helpful tips

Posted on 2019-07-25

Toddlers and kids can rebel at the idea of wearing glasses, but it’s a serious concern for parents trying to ensure the best possible vision for their child. We’ve put together a few tips to help make the process a little easier. Talk to your child about the benefits of glasses. While you watch TV… Read more »


Posted on 2019-07-11

Know The Glow’s ongoing initiative to raise awareness about eye conditions and diseases continues this month with a condition that affects two percent of children and is the most common cause of partial or total blindness in one eye in the United States.  Amblyopia, more commonly known as lazy eye, is a treatable condition—if detected… Read more »