In a 2-week-old neonate with excessive lacrimation and hazy corneas but clear conjunctiva, which diagnosis is most likely and requires ophthalmology referral?

In a 2-week-old neonate with excessive lacrimation and hazy corneas but clear conjunctiva, which diagnosis is most likely and requires ophthalmology referral?

• A. Congenital glaucoma requiring ophthalmology referral
• B. Corneal foreign body requiring fluorescein staining and removal
• C. Chalazion requiring treatment with antibiotic eyedrops
• D. Allergic conjunctivitis requiring treatment with Benadryl eyedrops

Answer: (A)

When a neonate has excessive tearing with a hazy cornea but a clear conjunctiva, think congenital glaucoma. The hazy cornea comes from corneal edema due to elevated intraocular pressure caused by abnormal development of the aqueous humor drainage pathways. This combination is a red flag in newborns because it can lead to irreversible vision loss if not treated promptly. Ophthalmology referral is essential for urgent evaluation and surgical management (such as a goniotomy or trabeculotomy) to relieve pressure. Other scenarios don’t fit as well. A corneal foreign body would usually present with a visible defect or staining and pain; a chalazion is a lid lump rather than a corneal finding; allergic conjunctivitis would irritate more with itching and conjunctival redness, and would not typically cause hazy corneas in a neonate.

When a neonate has excessive tearing with a hazy cornea but a clear conjunctiva, think congenital glaucoma. The hazy cornea comes from corneal edema due to elevated intraocular pressure caused by abnormal development of the aqueous humor drainage pathways. This combination is a red flag in newborns because it can lead to irreversible vision loss if not treated promptly. Ophthalmology referral is essential for urgent evaluation and surgical management (such as a goniotomy or trabeculotomy) to relieve pressure.

Other scenarios don’t fit as well. A corneal foreign body would usually present with a visible defect or staining and pain; a chalazion is a lid lump rather than a corneal finding; allergic conjunctivitis would irritate more with itching and conjunctival redness, and would not typically cause hazy corneas in a neonate.