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


Interview with Holly – Life of a Blind Girl Blogger

Posted on 2019-09-12

In 2015, Holly’s love for writing and her desire to share her experiences of living with a visual impairment led to the creation of her blog, Life of a Blind Girl. Little did she know that within the next few years, she would be listed as one of the top 100 most influential disabled people… Read more »

Superheroes with designer eyes

Posted on 2019-08-29

Kristen was surprised by how perfectly her baby boy’s new prosthetic eye matched his left eye. She felt that her son was finally feeling like himself again after a heartbreaking battle with Retinoblastoma claimed his right eye. Today, superhero Jayden is a happy, talkative and smiling seven-year-old—and five years cancer-free. “If you’ve done a good… Read more »

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 »