Evidence Checklist: Pterygium

Ophthalmology evaluation documenting pterygium extent and visual impactCritical

Records documenting pterygium size, involvement of visual axis, induced astigmatism, and impact on visual acuity.

Nexus opinion linking pterygium to service (UV exposure, dust, sand)Critical

Medical opinion connecting pterygium to intense UV/sunlight exposure, dust, sand, or wind in deployment environments — particularly Middle East, Southwest Asia, or outdoor training.

Visual acuity and refraction showing induced astigmatismCritical

Testing documenting refractive changes and corrected visual acuity affected by the pterygium.

Buddy statement from spouse, family, or fellow service member

A written statement from someone who can describe observable symptoms and how your condition affects daily life.

Personal statement describing symptoms and functional impact

Your own written account of how this condition affects your daily activities, work, and relationships. Describe your worst days.

Service treatment records (STRs)Critical

Military medical records showing in-service treatment, complaints, or injuries related to this condition.