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What is the blindspot from the eye?

The blind spot or optic disc is the specific region of the retina where the optic nerve and blood vessels pass through to connect to the back of the eye. It is a blind spot because there are no rods or cones there.


Functions of blind spot?

The human eye has defects that are an accident of evolution. In modern imaging devices, the data is collected by x/y scanning, or from places - behind - the image field. The human eye gathers the data from the -front-, in the direct path of the focused light rays. It is then necessary to take the information gathering nerves through the light sensitive surface to the back and on to the brain. The brain then develops a mask to correct for the errors. Not unlike the fix applied to the Hubble Telescope that had defects because of mis-calibrated instruments used in the grinding of the surfaces. The "spot" is rather larger than the word implies in relation to the area of the light sensitive surface. Clearly the other eye covers a stereo version of the absent parts of the image and the brain interpolates the two images into one.


Where does a blind spot in the retina occur?

Most commonly, blind spots in the retina are on or nearby the pupil/iris. It should be looking "clouded" and they might even get a blue tint to them. -------------------------------------------------- The above answer makes very little sense at all but I'll leave it in for now just in case it is somehow what was wanted. It'd be fairer to let an objective adjudicator decide. Anyhow....a blindspot on the retina occurs at the optic nerve. This is because as light enters the eye (through the pupil) it is projected onto the retina, which is essentially the back wall of the eye. Your retina is covered in tiny little sensors known as rods and cones (generally speaking cones allow colour vision during the day and rods allow the grainy black and white sight in the dark). So when light hits these cells, it breaks down pigments inside the cell according to wavelength (thus colour!) and that sends signal from that cell to the brain. There are millions of these in each eye and when you add them all up, you get a complete picture of that which is projected upon the back of your eye. However! All of these cells must have nerves running from them to the brain so these signals can be sent. All of these nerves from the retina are bundled together, where they meet at a certain point in the retina and then lead out the back of the eye into the brain. This bundle is called the optic nerve and obviously at that point on the retina, there's no rods or cones...meaning no light at that point is actually collected or processed, giving you a blind spot. To demonstrate this, you can do a classic blind spot test. You can do it with paper and a pencil, or there's a web version here: http://www.blindspottest.com/


What is blind loyalty?

Blind loyalty is when someone is unwaveringly devoted or supportive to a person, group, or cause without objectively evaluating the situation or considering potential flaws or consequences. It involves demonstrating allegiance without question or critical thinking.


When going up on a ladder do you look up or down?

When climbing a ladder, you should always look up to see where you are going and to ensure stability and safety. Avoid looking down as it can cause disorientation and increase the risk of falling.

Related Questions

What organizations are recommend for keeping children safe while backing up?

Driving schools that will teach drivers how long the blind spot on the ground is in back of a vehicle , and enforce checking around the vehicle while backing, as well as tell kids around the vehicle to keep out of the way while backing up.


What is a budget blind spot?

A "blind spot" is an expense a person overlooked or did not account for when drawing up a budget.


Why do cars have a blind spot?

The blind spot as you call it. Is generally cured by proper set up of your mirrors and also adding small covex mirrors externally.


What is backing up while driving?

Backing up while driving is putting your car in reverse with your foot on the brake and slowly letting your foot off the brake. If you are pulling out of a parking spot you might turn the wheel.


Who is at fault is car a missing a parking spot and than back up backing into car b?

The car going backwards.


Area of the retina that lacks rods and cones?

The retina is filled with rods and cones- except for one spot. This place that lack rods and cones is called the blind spot, which can be found by covering up one eye and looking at something with the other. Out of the corner of your uncovered eye, you will will see something disappear. We don't realize it on a daily basis because our brain fills in the empty spot. The blind spot is located near the optic nerve and is about 2mm wide.


In California who is at fault in an accident where a vehicle backing out of a parking spot strikes a vehicle that is already backed up and about to leave forward?

The person backing out I am asuming other person has finished reversing and is leaving if I understood correctly


In the motion of backing into a parking spot and another car comes and tries to pull forward into the spot next to me but turns wide and i end up tapping the drivers side fender whose fault is it?

From the explanation given in the discussion area - it would unfortunately appear as if both drivers were at fault. The backing driver for not being aware of his surroundings, and the other driver for failing to yield to the backing car when he saw that the backing car was already in motion.


Whose at fault when your backing out of a parking spot and then a car hits you?

You are simply because you have more responsibility when backing up to make sure it it clear.I found this out when backing out of driveway(mine) and someone turning in hit me.The insurance paid (we both had the same company) but cancelled my insurance.Alfa


What were the weaknesses of Warwick castle?

There is a blind spot near the castle in the forest and there is no most so it is easier to get up to the castle.


Who is at fault if truck backs into hind end of stopped Sm car when 3 quarters of car should be visible in truck drivers Rf mirror and driver says car was in his blind spot?

The person backing up always has the burden of doing so safely. Therefore, the driver of the truck would be at fault.


Where do you look when backing up?

When backing up, it's essential to check your surroundings by looking over your shoulder and using your mirrors to ensure there are no obstacles or pedestrians behind you. Additionally, turning your head to get a clear view of the area can help you avoid potential hazards. Always back up slowly and be aware of your vehicle's blind spots.