Definition

1. Noun:
   • A surgical procedure involving transplantation: A "corneal graft" is a surgical operation where damaged or diseased corneal tissue is removed and replaced with healthy corneal tissue obtained from a donor.

Usage

• The term "corneal graft" is used specifically in medical and ophthalmological contexts to describe the transplant procedure itself. It refers to the act of grafting, not the piece of tissue being grafted (which is typically called a "corneal transplant" or "donor cornea").
• It is often used in passive constructions (e.g., "to undergo a corneal graft") or to discuss the need for, success of, or complications related to the procedure.

Examples

• Noun:
  • The patient's vision improved significantly after the corneal graft.
  • A corneal graft may be necessary to treat advanced keratoconus.
  • The success rate for corneal grafts is very high.

Advanced Usage

• "Penetrating keratoplasty (PK)": This is a specific type of full-thickness corneal graft.
  • Penetrating keratoplasty is the traditional form of corneal graft.
• "Lamellar corneal graft": This refers to a partial-thickness graft where only certain layers of the cornea are replaced.
  • For some conditions, a lamellar corneal graft is preferable to a full transplant.

Variants and Related Words

• Corneal transplant (n): Often used synonymously with "corneal graft" to mean the procedure. It can also refer to the donor tissue itself.
• Keratoplasty (n): The medical term for corneal transplant surgery.
• Donor cornea (n): The healthy corneal tissue used in the graft procedure.
• Graft rejection (n): A complication where the recipient's immune system attacks the transplanted tissue.

Synonyms

• Corneal transplantation: The formal term for the surgical procedure.
• Keratoplasty: The technical medical term.

Related Phrases

• To undergo a corneal graft: To have the surgery performed.
  • She will undergo a corneal graft next month.
• Corneal graft surgery: A more explicit phrase specifying the procedural nature.
  • The hospital specializes in corneal graft surgery.

Noun

1. a surgical procedure in which part or all of a damaged or diseased cornea is replaced by healthy corneal tissue from a donor