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Blindness

Blindness is vision loss or vision impairment. Some diseases that cause blindness are cataracts, glaucoma, diabetic retinopathy, childhood blindness, macular degeneration, onchocerciasis and trachoma.

471 Questions

How can a dumb man convey a message to a blind man?

Well, the dumb man can use sign language or write down the message in braille for the blind man to read with his fingers. It's not rocket science, just use some common sense and a little creativity. There are ways to communicate that don't involve speaking, so put on your thinking cap and get the job done.

What kind of genetic disease is blindness?

Blindness can be caused by a variety of genetic diseases, such as retinitis pigmentosa, Leber congenital amaurosis, and glaucoma. These conditions can be inherited in different patterns, such as autosomal recessive, autosomal dominant, or X-linked. Genetic testing can help identify the specific genetic cause of blindness in an individual.

Why is it ironic that Jem is color blind?

It is ironic that Jem is color blind because in the context of the story "To Kill a Mockingbird," color blindness typically refers to someone who is not prejudiced or biased based on race. However, in Jem's case, he is not physically able to see colors due to his eye injury, which contrasts with the metaphorical meaning of color blindness within the novel.

What causes a deletion in the X chromosome to cause blindness?

A deletion in the X chromosome can result in blindness if it affects genes that are essential for vision. Genes involved in eye development and function are located on the X chromosome, so a deletion can disrupt the production of proteins necessary for normal vision. This disruption can lead to vision problems or blindness depending on the extent of the deletion and which specific genes are affected.

Is Red-green color blindness an X-linked recessive disorder?

Yes, red-green color blindness is typically an X-linked recessive disorder. This means that the gene responsible for red-green color blindness is located on the X chromosome, and individuals who inherit an abnormal gene on their X chromosome are more likely to express the trait if they are male, as they have only one X chromosome.

Snow blindness how long does it last?

Snow blindness, also known as photokeratitis, typically lasts between 24 to 48 hours. Symptoms may include eye pain, redness, tearing, and sensitivity to light. It is important to seek medical attention if you suspect you have snow blindness to prevent any long-term damage to your eyes.

You had a blood clot in your eye will you have permanent blindness or is there treatment?

A blood clot in the eye, known as a retinal vein occlusion, can cause varying degrees of vision loss. Treatment options include injections, laser therapy, or surgery to manage the clot and minimize vision loss. The prognosis will depend on the extent of damage and how quickly treatment is initiated. Permanent blindness is possible but not inevitable with prompt and appropriate treatment.

Why hemophilia and color blindness occur much more often in men than in women?

Hemophilia and color blindness are both X-linked recessive disorders. Since men have only one X chromosome, any mutated gene on that X chromosome will be expressed. Women have two X chromosomes, so they are more likely to be carriers of the mutated gene without showing symptoms. This is why these disorders occur much more often in men than in women.

How do you get night blindness?

Night blindness is typically caused by a deficiency in vitamin A, which is essential for good vision in low-light conditions. Other possible causes include certain genetic disorders, cataracts, or conditions that affect the retina. Seeing an eye doctor for proper diagnosis and treatment is important if you are experiencing night blindness symptoms.

What is face blindness?

Face blindness, also known as prosopagnosia, is a neurological condition where individuals have difficulty recognizing faces, even of familiar people like family and friends. This can make social interactions challenging and may affect daily life activities. Treatment typically involves learning to use other cues to recognize individuals, such as their voice or unique physical characteristics.

Is blindness a disease or a disorder?

Blindness is typically considered a disability or impairment rather than a disease or disorder. It can be caused by a variety of factors such as injury, genetic conditions, or certain illnesses.

Looking for blinds for E150?

There are many options available for blinds that will fit the E150 model. It's important to measure the windows accurately to ensure a proper fit. Consider purchasing custom-made blinds for the best fit and style. You can browse online or visit a local home improvement store to find a variety of blind options.

Why would a elderly person not be able to go to er by ambulance?

Some elderly persons may not be able to go to the ER by ambulance due to financial constraints or limited insurance coverage. Additionally, some elderly individuals may have underlying health conditions or disabilities that require specialized transportation services or make ambulance travel challenging or stressful for them.

Identify three things that may cause monitor flicker?

Monitor flicker may be caused by loose cables or connectors, refresh rate settings that are incompatible with the monitor, and issues with the monitor's power supply. Other potential causes include electromagnetic interference from nearby electronic devices or a malfunctioning graphics card.

Will you go blind if you watch a nuclear explosion?

Directly watching a nuclear explosion can cause temporary or permanent blindness due to the intense light emitted during the explosion. The light can overwhelm the retina, causing burns and potentially leading to blindness. It is advised to avoid looking directly at a nuclear explosion and seek shelter instead.

What is a most common cause for rough idle?

The most common cause for rough idle is typically a faulty or dirty mass airflow sensor (MAF), which can affect the air/fuel mixture going into the engine. Other common causes include issues with the spark plugs, fuel injectors, or air intake system.

How many blind people live on earth?

According to the World Health Organization, approximately 36 million people worldwide are blind, with another 217 million having moderate to severe vision impairment. These numbers are based on the latest available data.

How does metaphysics affect a person's axiology?

Metaphysics, which deals with the nature of reality and existence, can influence a person's axiology by shaping their beliefs about the nature of values and the ultimate purpose of life. For example, if someone believes in a metaphysical framework that emphasizes spiritual or transcendental values, this may lead them to prioritize these values in their ethical and moral reasoning. Additionally, metaphysical perspectives on topics like free will, determinism, and the nature of reality can also impact an individual's approach to ethics and decision-making.

What caused Helen's blindness?

In Greek mythology, Helen's blindness was caused by the goddess Athena, who felt that Helen needed to be punished for her role in the Trojan War. Athena struck Helen blind during her escape from Troy, leading to her being reunited with her husband Menelaus in Sparta.

Did Rabindranath Tagore have colour blindness?

Yes, Rabindranath Tagore was believed to have red-green color blindness. This condition influenced his artistic works, particularly his use of bold and contrasting colors in his paintings and writings.

Why did John Milton wrote the poem On his Blindness?

John Milton wrote the poem "On His Blindness" to reflect on his own struggles with blindness and his search for meaning and purpose in his life despite his physical limitations. The poem grapples with themes of acceptance, faith, and finding value in serving God through different means beyond just sight.

What poems did milton write in octosyllabic couplet IL Penseroso On his blindness On the late massacre in piedmont Lycidas?

John Milton wrote "Il Penseroso" and "L'Allegro" in octosyllabic couplets. "On His Blindness" was written in iambic pentameter, "On the Late Massacre in Piedmont" is a sonnet in iambic pentameter, and "Lycidas" is an elegy written in varying meters.

Can you tell about the title of the poem on His blindness?

The title of the poem "On His Blindness" by John Milton refers to the poet's own blindness. It explores Milton's reflections on how he can still serve God and fulfill his purpose despite his loss of sight. The poem delves into themes of acceptance, patience, and the inner spiritual journey of coming to terms with one's limitations.

On his blindness content analysis and poetic devices?

John Milton's poem "On His Blindness" reflects on his struggle with losing his sight and questioning how to serve God in his condition. The poem uses various poetic devices, such as metaphor ("they also serve who only stand and wait"), alliteration ("Patience to prevent That murmur") and enjambment to convey emotions and themes of acceptance, faith, and the value of inner spiritual service.