Macula Anatomy

Anatomy of the Macula. Mechanical senses of hair cells known as maculae.

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The macula is an oval-shaped area near the center of the retina.

Macula anatomy. The posterior hyaloid of the vitreous can be identified on macula scans especially with spectral-domain SD-OCT. The macula is a small but important area in the center of the retina. The optical elements within the eye focus an image onto the retina of the eye initiating a series of chemical and electrical events.

Anatomically the macula macula lutea or central retina is defined as the portion of the posterior retina that contains xanthophyll and two or more layers of ganglion cells. The macula in the human eye is the place where light is focused by the structures in the front of the eye cornea lens. The portion of the eye at the center of the retina that processes sharp clear straight-ahead vision.

When the gaze is fixed on any object the centre of the macula the centre of the lens and the object are in a straight line. The macula in humans has a diameter of around 55 mm 022 in and is subdivided into the umbo foveola foveal avascular zone fovea parafovea and perifovea areas. The bundle of nerve fibers at the back of the eye that carry visual messages from the retina to the brain.

The light sensitive layer of tissue that lines the back of the eye. The portion of eye at the center of the retina that processes sharp clear straight-ahead vision. The macula of the utricle or utricular macula is the region of the utricle that receives the utricular filaments of the vestibulocochlear nerve.

The light sensing nerve cells rods and cones located in the retina. This is especially useful in the evaluation of posterior vitreous detachments vitreomacular traction or vitreopapillary traction. In contextanatomylangen terms the difference between retina and macula is that retina is anatomy the thin layer of cells at the back of the eyeball where light is converted into neural signals sent to the brain while macula is anatomy an oval yellow spot near the center of the retina of the human eye histologically defined as having two or more layers of ganglion cells responsible for.

The macula ˈmakjʊlə or macula lutea is an oval-shaped pigmented area near the center of the retina of the human eye and in other animals. You need the macula to clearly see details of objects in front of you like faces and written text. It is made up of 200 million neurons but is only about 02 millimeters thick.

It is one hundred times more sensitive to detail than the peripheral retina. 1Area centralis 2Yellow spot 3Central retina 4Posterior Pole Subserves central 15-20 degrees of visual field. The normal central retinal artery black arrow is located nasal to the central retinal vein green arrow in the optic disc.

The retina functions in a manner similar to film in a camera. Macula lutea in anatomy the small yellowish area of the retina near the optic disk that provides central vision. The macula is a circular area of diameter 55 mm with a center located 17 degrees or 40-50 mm temporal and 053 - 08mm inferior to the center of the optic disc.

The macula is an anatomic specialization of the neural retina that is unique to humans and to higher primates Figure 1ad. It is responsible for providing us with the ability to see things in the middle of our visual field or central vision. The retina is a light-sensitive layer that lines the back of the eye.

Within each maculae the stereocilia are embedded in a gelatinous mass known as the otolithic membrane which contains small stonelike calcium carbonate particles called otoconia. In the centre of the macula is a depression called the fovea. Macula lutea in anatomy the small yellowish area of the retina near the optic disk that provides central vision.

The portion of the utricle that forms the macula forms a sort of pouch or cul-de-sac with a thickened floor and anterior wall. The light sensing nerve cells rods and cones located in the retina. The macula in humans has a diameter of around 55 mm and is subdivided into the umbo foveola foveal avascular zone fovea parafovea and perifovea areas.

The macula is the part of the retina that has the greatest number of light-sensitive cells or photoreceptors. It takes the picture that is sent to the brain where vision is completed. An area of the eye near the center of the retina where visual perception is most acute.

The macula is responsible for the central high resolution color vision that. A number of eye problems can affect the macula and can lead to vision loss if they are not treated. It is defined histologically by the presence of multiple layers of retinal ganglion cells there is only a single layer of ganglion cells in the extramacular retina and ophthalmoscopically.

The macula provides us with the ability to read and see in great detail whereas the rest of the retina provides peripheral vision. The macula is responsible for the sharp straight-ahead vision that is used for seeing fine detail reading driving and recognizing faces. The terms macula and fovea are used in different ways by the anatomist and the clinician.

Anatomy of internal ear In senses. MACULA LUTEA MACULA LUTEA is a 55 mm circular area deeper red than rest of the fundus at the posterior pole of retina lying inside the temporal vascular arcades 2 disc diameters temporal to the optic disc.

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