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Leukocoria, commonly referred to as a "white pupil," is a clinical sign where the normally black pupil appears white, silver, or yellow. This occurs when an intraocular mass, opacity, or detachment reflects light back through the pupil. In the eyewear and ophthalmic community, leukocoria is treated as a high priority medical emergency until serious pathologies like retinoblastoma or congenital cataracts are ruled out.
read more about white pupil (leukocoria) ...A white pupil is the primary indicator for several critical childhood conditions:
The Br?ckner test or red reflex test is the standard screening tool. An eye doctor uses an ophthalmoscope to shine light into both eyes simultaneously. If one pupil reflects red (normal) and the other reflects white (leukocoria), it indicates that light is being blocked or reflected by something in the back of the eye, requiring an immediate referral to an ocular oncologist.
After the underlying cause is addressed (e.g., tumor treatment or cataract removal), the patient will face significant refractive challenges. If the eye's natural lens is removed, the child will be "aphakic" and require high plus eyeglasses or specialized silicone hydrogel contact lenses to prevent amblyopia (lazy eye). These lenses must be updated frequently to match the rapid growth of the infant's eye.
Leukocoria is frequently detected in amateur photography where the camera's flash creates a white reflection rather than the typical "red eye." Education for parents on identifying this "glow" in digital photos has become a vital part of early detection programs, often leading to earlier diagnosis and higher rates of both eye and life preservation.
No, it can be caused by many things, including a scar from an old infection or a congenital cataract. However, it is impossible to tell without a dilated exam, so it must be treated as cancer until proven otherwise.
You should still schedule an urgent exam. Sometimes the angle of the photo only catches the reflection of a small tumor or lesion at a specific orientation. A professional screening is the only way to be sure.
Yes. In adults, it is usually a sign of a very advanced "mature" cataract or a massive retinal detachment. While less likely to be a malignancy like retinoblastoma, it still indicates a serious threat to vision that requires surgery.
1. Leukocoria. EyeWiki. https://eyewiki.org/Leukocoria. Accessed February 9, 2026.
2. What Is Leukocoria? American Academy of Ophthalmology. https://www.aao.org/eye-health/symptoms/leukocoria. Accessed February 9, 2026.
3. Evaluation and Management of Leukocoria. StatPearls (NCBI Bookshelf). https://www.ncbi.nlm.nih.gov/books/NBK560793/. Accessed February 9, 2026.
4. Clinical Anatomy of the Eye. Snell RS, Lemp MA. Blackwell Science; 2013.
5. Balmer A, Munier F. Differential diagnosis of leukocoria and strabismus, first signs of retinoblastoma. Clinical Ophthalmology. https://pmc.ncbi.nlm.nih.gov/articles/PMC2704543/. Accessed February 9, 2026.