Does Astigmatism cause blindness? Can Astigmatism be cured?

Answers

Answer 1

Answer:

Astigmatism is a problem of how the eye focuses light typically caused by a defect in the lens, resulting in distorted images. Astigmatism is not an eye disease or health problem. While it can cause blurred vision, eye strain, and headaches, particularly after prolonged reading, it does not cause blindness.

Astigmatism can be corrected with glasses, contact lenses, or refractive surgery (i.e. laser eye surgery), although treatment may not be necessary if the symptoms are mild. Glasses and contact lenses both compensate for the irregular shape of the cornea and help to focus light properly into the back of the eye


Related Questions

For purposes of the law a mental disorder is:
Select one:
a. a disorder such as drug or alcohol dependence
b. all of the above are correct
оооо
C. any disorder or disability of the mind
d. a disorder such as learning disabilities

Answers

Answer:

C

Explanation:

if its a mental disorder i think it would be a disability of the mind

C. Any disorder or disability of the mind

what kinds of bacteria are spherical, endospores,cocci, bacilli, spirilla

Answers

The cocci kind of bacteria are spherical in shape. Rod-shaped bacteria are bacilli, and spiral-shaped bacteria are called spirilla. Thus, the correct option is C.

What are the cocci bacteria?

A coccus or cocci bacteria is any bacterium or archaeon which has a spherical, ovoid, or generally a round shape. Bacteria are categorized into different classes on the basis of their shapes into three classes which are cocci (spherical-shaped bacteria), bacillus (rod-shaped bacteria) and spiral (two types: spirillum and spirochete bacteria).

Different classes and examples of bacteria are Streptococci, in which cocci are arranged in chains. Example: Streptococcus mutans. Diplococci, in this cocci are arranged in pairs. Example: Neisseria gonorrhoeae. Monococci are single cocci. Staphylococci are the clusters of cocci. Example: Staphylococcus aureus.

Therefore, the correct option is C.

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there are six elements that make up most of the human body. Which of the following is not one of these six elements?

Answers

Answer:

oxygen, carbon, hydrogen,

Explanation:

hope this helped u :)

which of the following is a energy consuming process a. excretion b. anabolism c. both a and b d. catabolism​

Answers

Answer:

Anabolism

Explanation:

Excretion exerts energy

Catabolism releases energy

Anabolism requires energy

Answer:

Option B

Explanation:

Anabolism is an energy requiring/consuming process in which smaller molecules are converted into larger molecules.

what property of water results from the high cohesion between water molecules?

Answers

Answer:

low density tension

Explanation:

Hornworts have only one _______ in each of their cells.

A. membrane
B. ribosome
C. chloroplast

Answers

The person above me is correct

Why are bacteria that live at hydrothermal vents called extremophiles?

Answers

Explanation:

in latin, extremus means extreme. philiā comes from greek and means love. extremophiles are organisms that achieve optimal growth in environmental conditions that are considered extreme, can be explained as "love"

What did Darwin believe

Answers

Answer:

He believed that God was the ultimate lawgiver. Although he believed God was the ultimate lawgiver, he also believed that religion is a tribal survival strategy


What is the difference between a species and a population?

Answers

Answer:

population is the number of something and species is something like a human or animal

Explanation:

A population is defined as a group of organisms of the same species that live in a particular area. There can be more than one population living within any given area. While a species is a group of organisms that share similar characteristics and a species can live within many different areas.

I hope this helps!

A student working on their science experiment places four potato squares into solutions of Iodine and measures how far the Iodine diffuses into the potato. The measurements are: 2.1 mm, 1.8 mm, 2.3 mm, and 2.2 mm. What is the average diffusion distance?

Answers

Answer:

The average diffusion distance is 2.1 mm

Explanation:

Given

Diffusion distance of the four potato squares are;

[tex]Potato 1: 2.1 mm\\Potato 2: 1.8 mm\\Potato 3: 2.3 mm\\Potato 4: 2.2 mm[/tex]

Required

Average Diffusion Distance

To calculate the average diffusion distance; we simply calculate the mean of the student recordings

Mean is calculated as thus;

[tex]Mean = \frac{\sum x}{n}[/tex]

Where x is the individual distance of the potato squares

[tex]\sum x = 2.1 mm + 1.8 mm + 2.3 mm + 2,2 mm[/tex]

[tex]\sum x = 8.4mm[/tex]

n is the number of potato squares

n = 4

[tex]Mean = \frac{\sum x}{n}[/tex]

[tex]Mean = \frac{8.4 mm}{4}[/tex]

[tex]Mean = 2.1 mm[/tex]

Hence, the average diffusion distance is 2.1mm

Explain how carbon dioxide moves from one organism to another

Answers

Answer:

carbon dioxide is moves from humans by bringing out oxygen from the anus. When the oxygen is out the humans it is called carbon dioxide, so the plants take in the carbon dioxide for their surviving

Give the word and chemical equations for respiration and photosynthesis

Answers

Answer:

PHOTOSYNTHESIS

carbon dioxide(CO2)+water(H2O)+sun light in the presence of chlorophyll(C55H72O5N4Mg)⇒glucose(C6H12O6)+oxygen(O2)+ATP(energy)

RESPIRATION

Glucose(C6H12O6)+Oxygen(O2)⇒carbon dioxide(CO2)+water(H2O)+oxtgen(O2)

Explanation:

I HOPE THIS WILL HELP YOU :)

How osmosis takes place in animal cell ?

Answers

Answer:

Osmosis in animal cells. animal cells have partially permeable cell membrane.  animalcells are placed in pure water because their cytoplasm is a stronger solution than the pure water, water will pass into the cells by osmosis. The cells will therefore swell up.

Explanation:

Mosses only grow in damp areas.

A. True
B. False

Answers

Answer:

False

Explanation:

Mosses are a group of plants that grow in damp, moist areas and tend to cover the ground like a green carpet. They are often seen in shaded forest areas and can grow on rocks and sidewalks as well.


What type of asexual reproduction is shown in the picture above?
O binary fission
Obudding
O regeneration
O vegetative propagation

Answers

binary fission- a single parent cell divides into two daughter cells eg amoeba,paramesium and bacteria

The given image asexual reproduction represents binary fission. The correct option is A.

What is binary fission?

In biology, fission is the division of a single organism into two or more pieces, followed by the regeneration of those parts into new, distinct organisms that resemble the original.

Asexual reproduction by splitting a body into two new bodies is known as binary fission.

When an organism divides into two halves (cytokinesis) through binary fission, it doubles its genetic material, or deoxyribonucleic acid (DNA), with each new creature acquiring one copy of the latter.

Divide into two is what binary fission refers to. It is the most straightforward and typical kind of asexual reproduction.

Thus, the correct option is A as it is showing the splitting of one cell into two.

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3.
c) Biotechhology
a) Pharmacology
Which one will be the correct sequence of the levels of organization of life?
a) Cell, organelle, molecule, organ, tissue, organ system, individual
b) Molecule, tissue, organelle, cell, organ system, organ, individual
c) Molecule, organelle, cell, tissue, organ, organ system, individual
d) Organ system, organ, tissue, cell, molecule, organelle, individual​

Answers

Answer:

Explanation:

option c molecule,organelle,cell,tissue,organ,organ system,individual

reason because i read this in grade 9

Watersheds may be contaminated by fertilizers and other pollutants. When these substances enter a waterway, they can cause algal blooms, which are rapid overgrowths of algae. When the algae die, the decay uses up a large portion of dissolved oxygen. Declining oxygen levels can then cause large die-offs of animals in the waterway. What will an algal bloom in a watershed most likely cause?

Answers

Completed options

A)A decrease in the watershed’s biodiversity, which will reduce its ability to supply clean and safe drinking water.

B)A decrease in the watersheds ecosystem diversity, which would improve its ability to supply large volumes of water.

C)An increase in the watersheds genetic diversity, which would reduce its ability to supply clean and safe drinking water.

D)An increase in the watersheds species diversity, which would improve its ability to supply large volumes of wate

Answer:

)A decrease in the watershed’s biodiversity, which will reduce its ability to supply clean and safe drinking water.

Explanation:

This sequnces of events is called  Eutrophication. It is the process of washing of  nutrients salts e.g., (NPK) into aquatic bodies which leads to change in the  ecosystem structure of the  aquatic bodies with the boom in algae growth, and drop in O2.

The cut in oxygen availability  in the aquatic bodies , leads to death of the fauna and flora.Theses are the varieties of life in this habitat.(biodiversity).

With the an increase in the death of these inhabitants(flora and fauna)couple with the activities of the (decomposers) the water bodies becomes dirty and unfit for drinking.

Besides as the pathways of the  watershield  ecosystem  as it filters the these polluted  water may be blocked by the dead organic matter from the flora and fauna. Thus A is the best.  

What are the polymers of nucleic acids called

Answers

Explanation:

Nucleic acids are polymers of individual nucleotide monomers. Each nucleotide is composed of three parts: a 5-carbon sugar, a phosphate group, and a nitrogenous base. Only two 5-carbon sugars are found in nature: ribose and deoxyribose.

Answer:

nucleotides

Explanation:

a nucleic acid is made up of chains of nucleotides

Os pulgões são insetos que retiram água e açúcar da seiva que as plantas fabricam.Quando absorvem esse líquido em abundância,eliminam o excesso, que é aproveitado por formigas.As formigas protegem os pulgões das joaninhas,que costumam se alimentar deles. Sobre is seres vivos envolvidos nessas intricadas relações ecológicas,é correto afirmar que os(as): a)joaninhas escravizam os pulgões b) formigas competem com joaninhas c) pulgões são polonizadores das plantas d)formigas são predadoras dos pulgões

Answers

The cells multiply I think that’s it

which best describe how mRNA is used by a cell

Answers

Answer:

Explanation:

Messenger RNA (mRNA) carries the genetic information copied from DNA in the form of a series of three-base code “words,” each of which specifies a particular amino acid. Translation is the whole process by which the base sequence of an mRNA is used to order and to join the amino acids in a protein.

hope it helps, plz try not to copy my content

choose the correct description for each phase of mitosis

Answers

Answer:

C- prophase

B- metaphase

A- anaphase

D- Telophase

Explanation:

It is the division process of the cell in which cell becomes divide into two equal halves each containing equal amount of DNA.

This division process is further divided into 4 subphases known as

- Prophase

- Metaphase

- Anaphase and

Telophase

Answer:

Label A

✔ C. Chromatin in the cell coils into chromosomes that can be seen.

Label B

✔ B. The chromosomes that were doubled become attached to the spindle fiber by their centromeres.

Label C

✔ A. Centromeres are split apart, and sister chromatids are pulled to opposite poles of the cell.

Label D

✔ D. Sister chromatids are separated and contain identical copies of DNA.

Explanation:

im not sure if this is the answers to your question because you have picture but this is correct

help me with a) ples​

Answers

I apologize for it being so untidy, ensure that the batteries and the wires are touching the corresponding items. It’s simply the battery that must be changed.

What is the study of life called?

Answers

Answer:

biology

Explanation:

Answer:

its bios

its dervied from Greek words bios which means life

U1:45.59
Which describes the motion of the plates?
O The hanging wall and footwall both move vertically.
O Shearing is causing the plates to slide past each other.
O The hanging wall moves down in relation to the footwall.
O Compression is causing the plates to move toward each
other.

Answers

Answer:

D

Explanation:

Shearing is causing the plates to slide past each other describes the motion of the plates. Therefore, the correct statement is option B.

What is the cause of plate motion?

Plate motion is caused due to movement of the underlying mantle creating convection currents to drive the plates. When two plates meet, the type of motion depends on the type of boundary.

The plates move past each other in a shearing motion at a transform boundary that is the cause of earthquakes. In this type of boundary, no destruction of the lithosphere was observed.  The two plates move away from each other to create new lithosphere as magma rises from the mantle at a divergent boundary.

The two plates move towards each other which can result in volcanic activity at a convergent boundary.

Therefore, shearing causing the plates to slide past each other best describes the motion of the plates.

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ASAP PLZ
what resources do rabbits need from their habitat in order to survive? name 3 things

Answers

Rabbits need to rely on their habitat, just as humans do. A few resources they rely on their habitat for may be food, water, and shelter.

Answer:

Rabbits need crops (food) (lettuce, grass, flowers, etc...) Rabbits don't drink water because they get it from the food. They also need a burrow, to hide from predators in, and they need carbohydrates.

Explanation:

Hope that helps!!! :)

What is the meaning of a Bioscope

Answers

Answer:

This is a cinema where people go to watch movies or a film someone watches.

Explanation:

Will reward 100 pts and brainly if you answer this question correct How do cells determine what size to grow to before dividing?

Answers

━━━━━━━☆☆━━━━━━━

▹ Answer

The cell will grow 2 cm long, and it caused by certain factors listed below.

▹ Step-by-Step Explanation

The size of the cell depends on many parts such as breakdown, nutrition, and synthesis. The cells will generally grow 2 cm long so that it can divide itself in half, like it does in mitosis and meiosis.

Hope this helps!

- CloutAnswers ❁

Brainliest is greatly appreciated!

━━━━━━━☆☆━━━━━━━

Answer:

The genes in the DNA of a cell also determine the size the cell would grow in its lifetime and these are mostly because of adaptive evolution.

Explanation:

A brainliest would be appreciated very much

Why might a plant cell need to have a bigger vacuole than an animal cell?

Answers

Answer:

A plant cell might need a bigger vacuole than an animal cell because when a plant has stopped growing, there is usually one very large vacuole, sometimes taking up more than half of the cell’s volume; plants have a large sized vacuoles because it also provides turgidity and rigidity to the plant.

Use the diagram above to explain how breathing,digestion,and cellular respiration work together to create energy in an animal

Answers

Answer:

As breathing brings in O2 (oxygen) and the digestive system breaks food down into smaller parts, like glucose, it gives cells all the needed parts in order to do cellular respiration.

An ecosystem is a community of living
organisms plus the non-living factors like soil
and rainfall in a given area. What is a biome?

Answers

A biome is an area of the planet that can be classified according to the plants and animals that live in it. 5 - 12+ Earth Science, Geography, Physical Geography.hope this helps,got it from google !
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