
The following conditions are seen in which defect of vision?
a. The vision is clear up to a distance of few meters
b. It may occur due to elongation of eyeball
c. The image of the object is formed in front of the retina
A. Myopia
B. Cataract
C. Presbyopia
D. Hypermetropia
Answer
125.1k+ views
Hint: The first condition means that the eye can only see nearby objects. The main reason is that the image is formed even before the rays from the object reach the retina. This means that the person is suffering from nearsightedness or myopia.
Complete step by step answer:
In myopia the shape of the lens is distorted or the eyeball elongates in such a way that the virtual image formation happens before the retina. Hence the object has to be brought closer to make it form an image on the retina. So, we see that the defects that are mentioned in the question are due to myopia
Hence option (A) is correct.
Additional information: The symptoms of myopia are objects in a distance appear blurring and close objects appear normal, headache and eye strain. Severe myopia can cause Glaucoma, cataract and retinal detachment. It is caused due to spending more time indoors or in front of display screens such as Television, Mobile phone etc., it may be because of genetic factors. Myopia can be treated by using a concave lens whereas Hypermetropia (long sightedness) can be corrected using a convex lens.
Note:
In case one doesn’t remember the scientific names of near and far-sightedness. Then remember “Myopia” is a small word $ \to $ “nearsightedness and “Hypermetropia” which is a long word $ \to $ “farsightedness. Basically, a smaller distance corresponds to a smaller word.
Complete step by step answer:
In myopia the shape of the lens is distorted or the eyeball elongates in such a way that the virtual image formation happens before the retina. Hence the object has to be brought closer to make it form an image on the retina. So, we see that the defects that are mentioned in the question are due to myopia
Hence option (A) is correct.
Additional information: The symptoms of myopia are objects in a distance appear blurring and close objects appear normal, headache and eye strain. Severe myopia can cause Glaucoma, cataract and retinal detachment. It is caused due to spending more time indoors or in front of display screens such as Television, Mobile phone etc., it may be because of genetic factors. Myopia can be treated by using a concave lens whereas Hypermetropia (long sightedness) can be corrected using a convex lens.
Note:
In case one doesn’t remember the scientific names of near and far-sightedness. Then remember “Myopia” is a small word $ \to $ “nearsightedness and “Hypermetropia” which is a long word $ \to $ “farsightedness. Basically, a smaller distance corresponds to a smaller word.
Recently Updated Pages
JEE Main 2021 July 22 Shift 2 Question Paper with Answer Key

JEE Electricity and Magnetism Important Concepts and Tips for Exam Preparation

Chemical Properties of Hydrogen - Important Concepts for JEE Exam Preparation

JEE Energetics Important Concepts and Tips for Exam Preparation

JEE Isolation, Preparation and Properties of Non-metals Important Concepts and Tips for Exam Preparation

JEE General Topics in Chemistry Important Concepts and Tips

Trending doubts
JEE Main 2025 Session 2: Application Form (Out), Exam Dates (Released), Eligibility & More

JEE Main Exam Marking Scheme: Detailed Breakdown of Marks and Negative Marking

The formula of the kinetic mass of a photon is Where class 12 physics JEE_Main

JEE Main 2023 January 24 Shift 2 Question Paper with Answer Keys & Solutions

Learn About Angle Of Deviation In Prism: JEE Main Physics 2025

JEE Main 2025: Conversion of Galvanometer Into Ammeter And Voltmeter in Physics

Other Pages
JEE Advanced Marks vs Ranks 2025: Understanding Category-wise Qualifying Marks and Previous Year Cut-offs

JEE Main Login 2045: Step-by-Step Instructions and Details

Dual Nature of Radiation and Matter Class 12 Notes: CBSE Physics Chapter 11

Electric field due to uniformly charged sphere class 12 physics JEE_Main

Ideal and Non-Ideal Solutions Raoult's Law - JEE

JEE Mains 2025 Correction Window Date (Out) – Check Procedure and Fees Here!
