Products / Tetra
Tetra®
Dehydrated Amniotic Membrane Allograft — Rectangular
Precision Coverage.
Rectangular Format.
Tetra is a single-layer dehydrated amniotic membrane allograft in four rectangular configurations — designed for pterygium excision, conjunctival reconstruction, and broad ocular-surface surgical applications. E-Beam sterilized. No refrigeration required.
Available Configurations — Rectangular
Product Attributes
Tetra — dehydrated amniotic membrane allograft, 2×2 cm configuration
Single-Layer. Rectangular. Surgical-Grade.
Tetra is a dehydrated, single-layer amniotic membrane allograft in rectangular format. Available in four configurations — 1×1 cm, 1×2 cm, 2×2 cm, and 2×3 cm — to accommodate pterygium excision, conjunctival reconstruction, and broader ocular-surface surgical applications. Sterilized by electron beam (e-beam) technique. No refrigeration required. Five-year shelf life.
What is Tetra?
Tetra is a single-layer dehydrated amniotic membrane (dAM) allograft processed from donated human placental tissue. The amniotic membrane is the innermost layer of the placenta — a naturally occurring biological scaffold rich in growth factors, cytokines, and extracellular matrix proteins that actively support tissue regeneration and reduce inflammation on the ocular surface.
"Amniotic membrane in pterygium surgery has been a game-changer for my practice. With Ophthalogix Tetra, I have a product that's readily available, reimbursable, and affordable — and it genuinely optimizes my case outcomes. It's become a standard part of how I approach pterygium excision."
— Dr. Ayman Matta, M.D.
Technical specifications.
Tetra rectangular dimensions.
Four rectangular configurations for precise coverage across surgical and procedural applications.
Ideal for targeted corneal defects and small epithelial lesions.
Suited for limbal or conjunctival strip applications.
Full ocular surface coverage for extensive surgical procedures.
Largest configuration — suited for wide conjunctival defects and complex reconstructions.
Where Tetra is used.
Common questions
Tetra — Frequently Asked Questions
Concise answers about this configuration. For the complete FAQ, visit the full FAQ page.