Definition of macula in English:
noun (plural maculae-ˌlē-ˌlī)
1A distinct spot, such as a discolored spot on the skin. Also called macule.
- Numerous observational studies have examined the correlation between lutein and zeaxanthin concentrations in the macula, dietary intake, and macular degeneration.
- Visual acuity drops off rapidly outside the macula.
- But as the body ages, the importance of carotenoids in the macula may increase because of the lifelong exposure to damaging light.
1.1 (also macula lutea)ˌmakyələ ˈlo͞odēə (plural maculae luteaeˈlo͞otēˌē-tēˌī) Anatomy An oval yellowish area surrounding the fovea near the center of the retina in the eye. It is the region of greatest visual acuity.
- The macula lutea or ‘yellow spot’ in the retina is responsible for central vision and visual acuity.
- When we gaze directly at an object, we hold our eyes in such a position that the image of the object falls on the central, specialized region of the retina - the fovea or macula - where visual acuity and colour vision are best.
- The vision loss results from loss of function of the macula, the centre of the retina, which is responsible for central visual tasks such as reading, driving, and recognising faces.
- Example sentences
- New treatments such as photodynamic therapy and macular surgery may limit the extent of visual loss and in a few cases even restore sight.
- A history of coronary artery bypass grafting or angioplasty was associated with macular degeneration.
- Loss of vitreous gel can occur, predisposing the patient to postoperative inflammation, macular oedema, or retinal detachment.
Late Middle English: from Latin, 'spot'.
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