Definition

Noun: - A surgical procedure for glaucoma: A type of eye surgery that creates a new drainage pathway to allow excess aqueous humor (the fluid inside the eye) to escape, thereby reducing intraocular pressure.

Usage

• This term is used specifically in medical contexts, particularly ophthalmology, to describe a standard surgical treatment for glaucoma.
• It is a formal, technical term.

Examples

• The patient's intraocular pressure was not controlled with medication, so the ophthalmologist recommended filtration surgery.
• Filtration surgery remains a cornerstone in the surgical management of open-angle glaucoma.
• The success of the filtration surgery was evident in the normalized pressure readings during the follow-up visit.

Advanced Usage

• Trabeculectomy: This is the most common type of filtration surgery, where a small flap is created in the sclera (the white of the eye) to allow fluid to drain.
  • The surgeon performed a trabeculectomy, a specific form of filtration surgery, to create a new drainage channel.

Variants and Related Words

• Filtering surgery: An alternative term with the same meaning.
• Glaucoma surgery: A broader category that includes filtration surgery and other procedures.
• Drainage implant surgery: A different surgical approach that involves inserting a tube, often used when standard filtration surgery is not suitable.

Synonyms

• Drainage surgery (in the specific context of glaucoma)
• Glaucoma filtering procedure

Related Terms (Not Phrasal Verbs or Idioms)

• Aqueous humor: The clear fluid inside the front part of the eye that is drained during this surgery.
• Intraocular pressure (IOP): The fluid pressure inside the eye, which this surgery aims to lower.
• Bleb: A small, fluid-filled blister that forms on the eye's surface after successful filtration surgery, indicating where the fluid is draining.

Noun

1. eye surgery that opens a passage allowing excess aqueous humor to drain into surrounding tissues; a treatment for glaucoma