A person unable to see an object more than 10 meters away is suffering from myopia. Myopia, or nearsightedness, causes distant objects to appear blurry while close objects are clear. This occurs because the eye focuses light in front of ...
Discussion Forum Latest Questions
Hypermetropia means farsightedness. This vision condition causes distant objects to be seen more clearly than near objects. It occurs because the eye focuses light behind the retina instead of on it. Convex lenses are used to correct hypermetropia by converging ...
Myopia, also known as nearsightedness, is a common vision condition where close objects appear clear, but distant objects are blurry. This occurs because the eye focuses light in front of the retina rather than directly on it. Myopia can be ...
To prevent farsightedness, we use a convex lens. Farsightedness, or hyperopia, is a condition where distant objects are seen more clearly than near ones. A convex lens converges light rays before they enter the eye, helping to focus the image ...
Spectacles with bifocal lenses are given for the treatment of astigmatism. Astigmatism is usually corrected with cylindrical lenses, not bifocal lenses. Bifocal lenses are used to correct presbyopia, which involves difficulty focusing on close objects and typically affects older adults.