macula lutea

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macula lutea

The ophthalmologist examines the patient's macula lutea with a retinal camera.

Definition
  1. Noun:
    • A small yellowish central area of the retina: The "macula lutea" is a specialized, oval-shaped region located at the center of the retina in the human eye. It is characterized by a yellow pigmentation and a high concentration of cone photoreceptor cells, which are responsible for sharp, detailed, and color vision.
Usage Examples
  • Noun:
    • The ophthalmologist examined the patient's macula lutea for signs of age-related degeneration.
    • Light is focused directly onto the macula lutea to allow for reading and recognizing faces.
Advanced Usage
  • Clinical Context: In medical and optometric fields, the term is often shortened to "macula" in common usage, though "macula lutea" is the precise anatomical term.
    • The scan revealed a small hemorrhage at the edge of the macula lutea.
Variants and Related Words
  • Macula (n): The common abbreviated form of "macula lutea."
    • Macular degeneration is a leading cause of vision loss.
  • Fovea centralis (n): A small central pit within the macula lutea that contains the very highest concentration of cones and is the point of sharpest vision.
    • The fovea centralis is the very center of the macula lutea.
Synonyms
  • Yellow spot: A direct descriptive synonym, referencing its color and location.
  • Central retina: A functional synonym describing its location, though this is a broader term.
Related Terms and Phrases
  • Macular degeneration (n phrase): A medical condition that damages the macula lutea, leading to loss of central vision.
    • Regular eye exams are crucial for early detection of macular degeneration.
  • Macular edema (n phrase): Swelling or thickening of the macula lutea.
    • The diabetic patient was diagnosed with macular edema.
Notes
  • The "macula lutea" is essential for tasks requiring high visual acuity, such as driving, reading, and seeing fine details. Damage to this area primarily affects central vision while often leaving peripheral vision intact.
macula lutea

The ophthalmologist examines the patient's macula lutea with a retinal camera.

Noun
  1. a small yellowish central area of the retina that is rich in cones and that mediates clear detailed vision

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