Class 10 Exam > Class 10 Questions > Presbyopia for human eye can be removed by us...
Start Learning for Free
Presbyopia for human eye can be removed by using:
- a)Bi-focal lenses
- b)Convex lens
- c)Concave lens
- d)Prismatic lens
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Presbyopia for human eye can be removed by using:a)Bi-focal lensesb)Co...
By far the most common and simplest treatment for presbyopia is bifocal or progressive lens eyeglasses. A bifocal lens is split into two sections. The larger, primary section corrects for distance vision, while the smaller, secondary section allows you to see up close.
This question is part of UPSC exam. View all Class 10 courses
Most Upvoted Answer
Presbyopia for human eye can be removed by using:a)Bi-focal lensesb)Co...
Explanation:
Presbyopia is an age-related vision condition that occurs when the lens of the eye becomes less flexible, making it difficult to focus on near objects. This condition usually occurs in people over the age of 40. Bi-focal lenses are used to correct this condition in human eyes.
Bi-focal lenses:
Bi-focal lenses are eyeglasses with two different prescriptions in the same lens. The upper part of the lens is designed for distant vision, while the lower part of the lens is designed for close-up vision. These lenses are also called multifocal lenses because they have multiple focal points. Bi-focal lenses can be made with different designs and materials, including glass, plastic, and polycarbonate.
Working of Bi-focal lenses:
Bi-focal lenses work by providing different prescriptions for different distances. The upper part of the lens corrects distance vision, while the lower part of the lens corrects near vision. When a person with presbyopia looks through the lower part of the lens, the lens magnifies the image, making it easier to see close-up objects. When the person looks through the upper part of the lens, the lens focuses the image on the retina, correcting distance vision.
Advantages of Bi-focal lenses:
1. Bi-focal lenses are a convenient option for people with presbyopia who want to correct their vision without having to carry around multiple pairs of glasses.
2. Bi-focal lenses are available in a variety of designs and materials, making them suitable for different vision needs and lifestyle preferences.
3. Bi-focal lenses are easy to use and require minimal adjustment time.
Disadvantages of Bi-focal lenses:
1. Bi-focal lenses can take some time to adjust to, especially if the person has never worn them before.
2. Bi-focal lenses can cause distortion in the visual field, particularly in the transition area between the upper and lower parts of the lens.
3. Bi-focal lenses can be more expensive than single-vision lenses.
Presbyopia is an age-related vision condition that occurs when the lens of the eye becomes less flexible, making it difficult to focus on near objects. This condition usually occurs in people over the age of 40. Bi-focal lenses are used to correct this condition in human eyes.
Bi-focal lenses:
Bi-focal lenses are eyeglasses with two different prescriptions in the same lens. The upper part of the lens is designed for distant vision, while the lower part of the lens is designed for close-up vision. These lenses are also called multifocal lenses because they have multiple focal points. Bi-focal lenses can be made with different designs and materials, including glass, plastic, and polycarbonate.
Working of Bi-focal lenses:
Bi-focal lenses work by providing different prescriptions for different distances. The upper part of the lens corrects distance vision, while the lower part of the lens corrects near vision. When a person with presbyopia looks through the lower part of the lens, the lens magnifies the image, making it easier to see close-up objects. When the person looks through the upper part of the lens, the lens focuses the image on the retina, correcting distance vision.
Advantages of Bi-focal lenses:
1. Bi-focal lenses are a convenient option for people with presbyopia who want to correct their vision without having to carry around multiple pairs of glasses.
2. Bi-focal lenses are available in a variety of designs and materials, making them suitable for different vision needs and lifestyle preferences.
3. Bi-focal lenses are easy to use and require minimal adjustment time.
Disadvantages of Bi-focal lenses:
1. Bi-focal lenses can take some time to adjust to, especially if the person has never worn them before.
2. Bi-focal lenses can cause distortion in the visual field, particularly in the transition area between the upper and lower parts of the lens.
3. Bi-focal lenses can be more expensive than single-vision lenses.
Community Answer
Presbyopia for human eye can be removed by using:a)Bi-focal lensesb)Co...
Presbyopiafor human eye can be removed by using bi- focal lens .... .....
In bifocal lens ,the upper part of lens consist concave (to correct myopia) and lower convex (to correct hypermetropia). concave is used in upper portion of distant vision and convex in lower vision.
I hope it's helpful for us......
In bifocal lens ,the upper part of lens consist concave (to correct myopia) and lower convex (to correct hypermetropia). concave is used in upper portion of distant vision and convex in lower vision.
I hope it's helpful for us......
Attention Class 10 Students!
To make sure you are not studying endlessly, EduRev has designed Class 10 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 10.
|
|
Explore Courses for Class 10 exam
|
|
Similar Class 10 Doubts
Top Courses for Class 10View all
Presbyopia for human eye can be removed by using:a)Bi-focal lensesb)Convex lensc)Concave lensd)Prismatic lensCorrect answer is option 'A'. Can you explain this answer?
Question Description
Presbyopia for human eye can be removed by using:a)Bi-focal lensesb)Convex lensc)Concave lensd)Prismatic lensCorrect answer is option 'A'. Can you explain this answer? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Presbyopia for human eye can be removed by using:a)Bi-focal lensesb)Convex lensc)Concave lensd)Prismatic lensCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Presbyopia for human eye can be removed by using:a)Bi-focal lensesb)Convex lensc)Concave lensd)Prismatic lensCorrect answer is option 'A'. Can you explain this answer?.
Presbyopia for human eye can be removed by using:a)Bi-focal lensesb)Convex lensc)Concave lensd)Prismatic lensCorrect answer is option 'A'. Can you explain this answer? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Presbyopia for human eye can be removed by using:a)Bi-focal lensesb)Convex lensc)Concave lensd)Prismatic lensCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Presbyopia for human eye can be removed by using:a)Bi-focal lensesb)Convex lensc)Concave lensd)Prismatic lensCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Presbyopia for human eye can be removed by using:a)Bi-focal lensesb)Convex lensc)Concave lensd)Prismatic lensCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 10.
Download more important topics, notes, lectures and mock test series for Class 10 Exam by signing up for free.
Here you can find the meaning of Presbyopia for human eye can be removed by using:a)Bi-focal lensesb)Convex lensc)Concave lensd)Prismatic lensCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Presbyopia for human eye can be removed by using:a)Bi-focal lensesb)Convex lensc)Concave lensd)Prismatic lensCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Presbyopia for human eye can be removed by using:a)Bi-focal lensesb)Convex lensc)Concave lensd)Prismatic lensCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Presbyopia for human eye can be removed by using:a)Bi-focal lensesb)Convex lensc)Concave lensd)Prismatic lensCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Presbyopia for human eye can be removed by using:a)Bi-focal lensesb)Convex lensc)Concave lensd)Prismatic lensCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Class 10 tests.
|
|
Explore Courses for Class 10 exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup