People who have nearsightedness (also known as ) can see close-up objects clearly while distant objects appear blurry. Nearsightedness occurs when the eyeball is too long, causing light rays to achieve a point of focus before they reach the retina. Show
People with nearsightedness might need eyeglasses, contacts, or corrective surgery, depending on their lifestyle, the driving rules in their state, and their occupation. How often they wear glasses may vary based on the severity of their condition. For example, some people might need glasses for driving, but can watch TV, go to the movies, and do everything else fine without them. Others might barely be able to see objects 10 feet away. FarsightedPeople who have farsightedness (also known as hyperopia) have the opposite condition—close objects appear out of focus while distant objects are clear. Farsightedness occurs when the eyeball is too short, causing light rays to reach a point of focus beyond the retina. Farsightedness can also be treated by eyeglasses, contacts, or corrective surgery. Some people might need to wear glasses and contacts all the time while others might only need them for reading, working on a computer, or up-close tasks like sewing. Myopia and hyperopia treatmentGlasses and contacts change the way light rays bend into the eyes while surgery reshapes the cornea so light focuses on the retina. When it comes to eyeglasses, getting the right prescription is a must. Wearing glasses with the wrong prescription can cause headaches, dizziness, and possibly nausea. It's possible to have some degree of nearsightedness and farsightedness together. Fortunately, the same corrective measures are available. It's important to get a comprehensive eye exam annually, not only to keep a prescription up to date, but to screen for eye conditions and take proper preventative or treatment measures. Myopia occurs if the eyeball is too long or the cornea (the clear front cover of the eye) is too curved. As a result, the light entering the eye isn't focused correctly, and distant objects look blurred. Myopia affects nearly 30% of the U.S. population. While the exact cause of myopia is unknown, there is significant evidence that many people inherit myopia, or at least the tendency to develop myopia. If one or both parents are nearsighted, there is an increased chance their children will be nearsighted. Even though the tendency to develop myopia may be inherited, its actual development may be affected by how a person uses his or her eyes. Individuals who spend considerable time reading, working at a computer, playing video games or doing other intense close visual work may be more likely to develop myopia. In fact, high levels of screen time on smart devices (i.e. looking at a smart phone) is associated with around a 30% higher risk of myopia and, when combined with excessive computer use, that risk rose to around 80%. Causes & risk factorsMyopia may also occur due to environmental factors or other health problems:
SymptomsPeople with myopia can have difficulty clearly seeing a movie or TV screen, a whiteboard in school or while driving. Generally, myopia first occurs in school-age children. Because the eye continues to grow during childhood, it typically progresses until about age 20. However, myopia may also develop in adults due to visual stress or health conditions such as diabetes. DiagnosisTesting for myopia may use several procedures to measure how the eyes focus light and to determine the power of any optical lenses needed to correct the reduced vision. As part of the testing, you will identify letters on a distance chart. This test measures visual acuity, which is written as a fraction, such as 20/40. The top number of the fraction is the standard distance at which testing is performed (20 feet). The bottom number is the smallest letter size read. A person with 20/40 visual acuity would have to get within 20 feet to identify a letter that could be seen clearly at 40 feet in a "normal" eye. Normal distance visual acuity is 20/20, although many people have 20/15 (better) vision. Using an instrument called a phoropter, a doctor of optometry places a series of lenses in front of your eyes and measures how they focus light using a handheld lighted instrument called a retinoscope. Or the doctor may choose to use an automated instrument that evaluates the focusing power of the eye. The power is then refined based on your responses to determine the lenses that allow the clearest vision. Your doctor can conduct this testing without using eye drops to determine how the eyes respond under normal seeing conditions. In some cases, such as for patients who can't respond verbally or when some of the eye's focusing power may be hidden, a doctor may use eye drops. The eye drops temporarily keep the eyes from changing focus during testing. Using the information from these tests, along with the results of other tests of eye focusing and eye teaming, your doctor can determine if you have myopia. He or she will also determine the power of any lens correction needed to provide a clearer vision. Once testing is complete, your doctor can discuss treatment options. TreatmentPeople with myopia have several options available to regain clear distance vision. They include:
People with myopia have a variety of options to correct vision problems. A doctor of optometry will help select the treatment that best meets the visual and lifestyle needs of the patient. PreventionChildren who are at high risk of progressive myopia (family history, early age of onset, and extended periods of near work) may benefit from treatment options that have been shown to reduce the progression of myopia. These treatments include the prescription of bifocal spectacle or contact lenses, orthokeratology, eye drops, or a combination of these. Because persons with high myopia are at a greater risk of developing cataracts, glaucoma and myopic macular degeneration, myopia management may help preserve eye health. What is the condition if a person sees near objects clearly while objects at a distance Rh blood?So, the correct answer is 'Myopia'
What is the condition if a person sees near objects clearly?The eye disease in which people can see near objects clearly and cannot see far objects clearly is known as Myopia and the diseases in which people can see far objects clearly and cannot see near objects clearly is known as hyperopia.
In which condition can a person see distant objects clearly but not close objects?Farsightedness, also known as hyperopia, is a condition of the eye in which light is focused behind, instead of on, the retina. The person affected by hypermetropia cannot see nearby objects distinctly but can see distant objects clearly.
What is the condition in which a person does not see nearby objects clearly and how is this corrected?Hypermetropia is a condition in which a person can clearly see distant objects but not nearby objects. It is also referred to as nearsightedness or farsightedness. This flaw can be corrected by using an appropriate power convex lens.
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