KEY FACTS

Terminology

  • Coloboma = gap or defect of ocular tissue

  • May involve any or all structures of embryonic cleft

  • Types of posterior coloboma

    • Optic disc coloboma

    • Choroidoretinal coloboma

  • Related but distinct anomalies

    • Morning glory disc anomaly

    • Peripapillary staphyloma

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