Recently, I saw a noun on the Internet, what does presbyopia ADD mean when it means joining ?

For example, if you have 100 degrees of myopia, that's -100 degrees. But I found that you have presbyopia, and presbyopia also has a degree and is a positive degree, such as +50 degrees of presbyopia, +50 is the addition of presbyopia. In optometry, you will first check your myopia, after the myopia examination, you will be allowed to look at a distance of 40cm from the lattice optoscope in the comprehensive refraction, people with presbyopia can see that the horizontal line of the lattice optoscope is clear, at this time the doctor will add the power of the presbyopia lens, until you see that the optoscope is a vertical line clear, at this time the total plus of the presbyopia is "presbyopia add"."

In the process of optometry, the diopter required to see far away is detected, that is, the power of distance use; The diopter required to see near is the power of proximity. The absolute value of the difference between two degrees, i.e., the added light, is also known as add. Distant power, near power, and add are the main parameters for progressive multifocal lenses.

It is the degree of your presbyopia, plus your existing power is the power of reading glasses, the power of reading glasses, and the power of reading glasses These are two degrees, it may be difficult for you to understand, that is, your 130 pounds is the net weight, and 150 pounds is the gross weight when you put on the clothes, and the gross weight is usually used, and no one lets you take off your clothes in the mall and weigh them, so it should be better.

This abbreviation has several meanings, most commonly used in online games.

add - When the player is performing actions such as killing monsters, gathering, etc., the player is attacked by monsters due to entering the monster's aggro range. (i.e., attracting monsters when they shouldn't).

The game term add now refers to "new monsters added to the hatred list in battle". Monsters added in battle, whether they are caused by the player's mistake or would have joined the battle, are counted as add.

The term is still full of complexity, and different games have different interpretations.

Others, such as in the eye:

First, on the optometry sheet.

It represents the addition of light, and in the process of optometry, it is necessary to check the diopter required to see far, that is, the power of distant use. The diopter required to see near is then measured, which is the power of proximity. The absolute value of the difference between two degrees, i.e., the added light, is also known as add.

ADD is the main parameter for making progressive multifocal lenses, which must be measured clearly and written clearly. The principle of optometry prescription should be composed of distance power and add power, because its value affects the choice of lenses. If someone has a certain degree of myopia, it does not offset his own myopia, but his add itself has not changed, how much is how much, and when he looks far away, it is still his previous myopia, and it generally does not change.

The light is added below, that is, the luminosity added on the basis of looking far.

2. The calculation formula of optometry add.

In the textbooks of optometry, when it comes to accommodation and add, such a formula is mentioned: add=1 destination distance - 1 2 (or 2 3) accommodation. From this formula, it is not difficult to see that for customers with a certain adjustment power, the level of the lower light is directly related to the distance of the wearer wearing the glasses.

The closer the target distance, the greater the lower the light, and conversely, it can be said that the lower light is smaller.

3. Other meanings of add.

Add is the English abbreviation of Attention Deficit Hyperactivity Disorder. Medically referred to as attention deficit disorder, the main symptom is frequent and involuntary mind wandering. But that's not to say that ADD patients can't concentrate, they just can't decide when and where to concentrate.

Thinking so much for now.

add[æd]

v.Add, add, supplement.

Example sentence: add

upallthemoney

ioweyou.

Add up all the money I owe to you.

ifyouadd4

to5,youget

9.Four plus five equals nine.

headded

somewood

toincrease

thefire.

He added some wood to make the fire stronger.

Hello, add is a term that refers to the addition of light in optometry, mainly the important data that is needed in the refraction of reading glasses.

The noun interpretation of "visual acuity" is the ability of the eye to distinguish the details of an object. Medically called vision. Under certain conditions (e.g., brightness, distance, etc.), the smaller the size of the eye to distinguish the details of the object, the higher the visual acuity, and vice versa, the lower the visual acuity.

It is usually measured by the minimum distance at which two parallel rays can be distinguished. The standard ring on the eye chart is designed accordingly. The smaller the distance, the smaller the viewing angle, i.e., the better the vision.

When the minimum viewing angle is 1 minute, the visual acuity is set at 1. The visual acuity of each part of the retina is different, in bright light, the visual acuity of the concave is the highest, the visual acuity of the surrounding part decreases rapidly, and the visual acuity of the most marginal part is only 1 40 of the concave. In dark places, the visual acuity of the ** concave is almost zero, while the visual acuity of the surrounding part is relatively high, of course, it is very different from the light vision.

It can be seen that ** vision is characterized by distinguishing details and having color vision in bright light; Marginal vision is characterized by sensitivity to low light in low light and no color vision.

There is a close relationship between the brightness contrast and the minimum vision Absolute visual threshold, brightness is about 10" candle square meter But this value is only suitable for looking at large white targets on a dark background, and it does not limit the observation time The smaller the size of the target, and the smaller the contrast with the background, the higher brightness is required to see, and the size here is the angle of the smallest target to the eye or the minimum angle of view.

In visual resolution experiments, contrast is often used to indicate the sharpness of the object being observed. Brightness contrast refers to the difference in brightness between an object and the background and the brightness of an object (or background) The lighting standard is directly related to the contrast between the observed object and the brightness of the background.

There is add into, and the difference between add to and add into is: different meanings, different usages, and different emphasis.

First, the meaning is different.

1. add to: add, yes...The addition, strengthening.

2. add into: Add into.

Second, the usage is different.

1. add to: The basic usage of add when used as a transitive verb is add sth to sth or add sth, which can be regarded as omitting to sth, which is mainly used in appropriate contexts, especially when both speakers are clear about to sth.

2. add into: add is not only a common term, but also a scientific and technological term, mainly refers to the use of addition operations in arithmetic to find the sum of a series of numbers or quantities, and in a broad sense, it refers to the "addition" or "addition" of a thing to another thing to "increase" the weight, scale, total amount or importance of the original thing. add can also mean "to continue" or "to continue".

Third, the focus is different.

1. add to: focus on the equal relationship between the two, add together.

2. add into: focus on adding one to another.

1. add to (add is used as an intransitive verb) means "to increase; Add", where to is a preposition, followed by a noun or pronoun.

this latest incident will add to the pressure on the government.

This latest incident will add to the pressure.

2 add into ,Add to.

then type the particular account name that you want to add into the text box.

Then type the specific account name you want to add in the text box.

add in is also a confusing phrase, so it is written so that it can be distinguished:

add in to count, including.

we'd better add in some lemon juice before mixing the flour with sugar.

Before putting sugar in the flour, we better put in some lemon juice.

Add to is what is added, such as: add to my anger has increased my anger, generally say add to sth add into what is added, such as: add some salt into the dish to add some salt, that is, add salt into the dish, generally say add sth into sth

It doesn't seem to be added into this usage.