macula lutea
The macula is the area that controls our main line of sight.
These patients showed progressive changes in the maculae after their thirties.
The lack of oxygen kills the support tissue cells, and then the rod and cone cells of the macula itself.

SMART Vocabulary: related words and phrases

The eye & surrounding area
beadily
beetling
canthus
chiasm
chiasma
compound eye
eyeball
eyelid
glassy
limbus
macula lutea
macular
monobrow
oculomotor
optic nerve
suborbital
superciliary
supraoptic
supraorbital
tear duct

You can also find related words, phrases, and synonyms in the topics:

Eyesight, glasses & lenses

maculanoun[C] (SKIN)

(alsomacule)
a spot on the skin that is a different colour from the rest of the skin:
The pigmented maculae on the face, especially around the nose and mouth, are smaller.
These macules may vary in size and shape and can be located in any part of the body.
Clinically, they appeared as numerous brown macules, ranging in size from 1 to 5 mm in diameter.
Hypopigmented maculas were found on the skin.
They noted the presence of red maculae on the legs of the two bird species and mice.

SMART Vocabulary: related words and phrases

Skin complaints & blemishes
acne rosacea
age spot
anti-crack
anti-dandruff
anti-leprosy
cold sore
cyst
dermatitis
nettlerash
papular
papule
pemphigus
pizza face
prickle
pustule
scabby
ulcer
ulcerated
verruca
wart

You can also find related words, phrases, and synonyms in the topics:

The skin, & skin colour

Examples of macula

macula
The macula is represented in the operculum, where receptive fields are small.
The central macula (foveola) consists of photoreceptors only and derives its blood supply from the choroid and so does not become swollen or opaque as elsewhere.
Since 1 deg of visual angle spans about 0.3 mm on the retina, the macula corresponds to the central 15-20 deg in the visual field.
Spatial frequencies are perceived with more or less sharpness in different areas in the macula, resulting in a deficient perception of the exact metric distance between the facial features.
Associated oculomotor signs may be present and on ophthalmoscopic examination the retina is pale and oedematous, with a cherry-red spot at the macula if the central retinal artery is involved.
No specific findings are seen in the optic disks and maculae.
However, if the macula is involved, even successful reattachment does not assure the return of normal vision.
We also found significant differences of retinal maculae and ocular refractions between the siblings.
A horseshoe macula scotoma developed during the patient's late 50s.
The simulation expresses the state of the macula by means of a real number in the interval (0, 1).
The macula is the most sensitive central section of the retina and is used for direct vision such as reading.
It is defined as a degeneration of the macula after 50 years of age that cannot be attributed to an obvious systemic or ocular cause.
The disease progression in the macula illustrates this process.
The latter refers to the visual quality of the retina excluding the macula.
Not so in the case of diseases of the outer retina, including macula degeneration and retinitis pigmentosa.
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.