Retina

Word RETINA
Character 6
Hyphenation ret i na
Pronunciations /ˈɹɛt.ɨ.nə/

Definitions and meanings of "Retina"

What do we mean by retina?

A delicate, multilayered, light-sensitive membrane lining the inner eyeball and connected by the optic nerve to the brain. noun

The innermost and chiefly nervous coat of the posterior part of the eyeball, between the choroid coat and the vitreous humor. noun

The delicate membrane by which the back part of the globe of the eye is lined, and in which the fibers of the optic nerve terminate. See eye. noun

The thin layer of cells at the back of the eyeball where light is converted into neural signals sent to the brain. noun

The innermost light-sensitive membrane covering the back wall of the eyeball; it is continuous with the optic nerve noun

The thin layer of cells at the back of the eyeball where light is converted into neural signals sent to the brain.

Synonyms and Antonyms for Retina

  • Antonyms for retina
  • Retina antonyms not found!

The word "retina" in example sentences

The clarity of the images produced on the retina is a factor which determines the power of vision. ❋ Unknown (1967)

The retina is a thin layer of nerve tissue that coats the back of the eye and enables the eye to see. ❋ Unknown (2009)

"Inverted retina" is part of visual system that works very well in humans and birds, so on what basis does Johnson call this "bad design". ❋ Unknown (2007)

Using an intact retina from a guinea pig, the researchers recorded spikes of electrical impulses from ganglion cells and calculated the human retina can transmit data at roughly 10 million bits per second. ❋ Unknown (2006)

Our eyes (retina is behind the optic nerve, not intelligently in front of it like exists in other life forms), the bones are an engineering disaster, the appendix has no function, the coccyx is a tail bone (we have no tail), and we possess pseudo genes (genes that exist but do not function). ❋ Unknown (2005)

I would argue that the design for the retina is in fact the best choice, given the restraints of its design and past evolutionary choices/routes. ❋ Unknown (2005)

Hubel and Wiesel were also able to show by their experiments that the ability of the cells in the visual cortex to interpret the code of the impulse message from the retina is developed directly after birth. ❋ Unknown (1981)

The pupil, or aperture, through which rays pass to the retina, is the tenderest part of the eye; the member which we most sedulously guard from hurt as being the dearest of our members; the one which feels most acutely the slightest injury, and the loss of which is irreparable. ❋ Unknown (1871)

I had already been receiving laser treatments for diabetic retinopathy for a couple of years, so I called my retina specialist later that morning, then lived through an agonizing 24 hours until I could see him the following day. ❋ Unknown (2008)

In a preliminary study, Australian researchers examined the photographs of the light-sensitive part of the eye called the retina in 13 people with Alzheimer's, 13 with mild cognitive impairment and 110 healthy individuals. ❋ Shirley S. Wang (2011)

It may be tempting, upon examining the vertebrate eye for example, to infer that wiring the optic nerve to the front of the retina was an irrational design, and therefore a bad design. ❋ Unknown (2010)

The retina is the light-sensitive layer of tissue that lines the inside of the eye and sends visual messages through the optic nerve to the brain. ❋ Unknown (2009)

It turns out that they perform the same function in the macula -- the sensitive central portion of the retina, which is critical for eyesight. ❋ Unknown (2008)

The ganglion cells in the retina were then classified as either "brisk" or "sluggish," depending on how fast they fired. ❋ Unknown (2006)

The theoretical terrain in optics changed with Kepler's doctrine that vision is mediated by the retinal image and that the retina is the sensitive body in the eye. ❋ Hatfield, Gary (2008)

For if this blind man, the moment that he opens his eyes, can correctly judge of distances, dimensions, and situations, it would be true that the optical angles suddenly formed in his retina were the immediate cause of his decisions. ❋ Unknown (2007)

And I'm going to show you a system that we designed to model the retina, which is a piece of brain that lines the inside of your eyeball. ❋ Kwabena Boahen (2007)

Interesting fact for Valentine's Day: The retina is the only part of the central nervous system that is visible from outside the body. ❋ Unknown (2006)

Cross Reference for Retina

What does retina mean?

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