DEFECTS OF VISION AND THEIR CORRECTION

Defects of vision and the correction. The eye may gradually lose its power for combination. In such conditions, the person can not see the objects distinctly and comfortably. The vision becomes blurred due to the refractive defects of the eye. There are mainly three common refractory defects of vision. These are one myopia, or near sightedness, two, hypermetropia, or foresightedness, and three, press BOP. These defects can be corrected by the use of suitable spherical lenses. We discussed below these defects, and the correction. Myopia, the light from a distant object, arriving at the islands, may get converged at a point in front of the retina in the virtuous body. This type of defect is called nearsightedness, a mild beer. Let us observe these cases, and then you can understand the concept myopia. In the case of normal eye, the light rays from the object for on the eye and converge on the retina. In the case of myopic eye, the light rays from the object fall on the eye and focuses the light at a point in front of the retina in the virtuous body. The correction for myopia. The compensate this, we interpose a concave lens between the eye and the object. With the diverging effect desired to get the match focused on the retina. Hypermetropia, if the eye lens focuses, the incoming light and the point behind the retina, this defect is called farsightedness, or hypermetropia. That is observed these cases, and then you can understand the concept. Hypermetropia, in the case of normal eye, the light rays from the object fall on the eye and converge on the retina. In the case of hypermetropia, the light rays from the object fall on the eye and focuses, the incoming light, at a point behind the retina. The correction for hypertrophic eye, a convergent lens is needed to compensate for the defect in vision. Press BOP. What is presbyopia? Press BOP is a common type of vision disorder that occurs at your age. It is often referred to as the aging eye condition. Press BOP results in the inability to focus up close. A problem associated with the refraction in the eye. How does press BOP occur? Press BOP happens naturally in people as they age. The eye is not able to focus light directly onto the retina due to the hardening of natural lens aging also affects muscle fibers around the lens, making it harder for the eye. To focus on up, glows objects, the ineffective lens causes light to focus behind the retina, causing pole vision for objects that are up close. When you are younger, the lens of the eye is soft and flexible, allowing the tiny muscles inside the eye to easily reshape the lens to focus on close and distant objects.