Myopia or nearsightedness, is a condition in which people can see close objects clearly, but objects farther away appear blurred.
Symptoms
Blurry vision when looking at distant objects
The need to squint or partially close the eyelids to see clearly
Headaches
Eyestrain
Causes & risk factors
Myopia may occur due to environmental factors or other health problems
Some may experience blurred distance vision only at night this is called "night myopia," where low light makes it difficult for the eyes to focus properly.
Some people who do an excessive amount of near-vision work may experience a false or "pseudo" myopia. Their blurred distance vision is caused by overuse of the eyes' focusing mechanism.
Symptoms of myopia may also be a sign of variations in blood sugar levels in people with diabetes
Myopia maybe also be an early indication of a developing cataract.
Treatment
Eyeglasses. For most people with myopia, eyeglasses are the primary choice for correction. Depending on the amount of myopia, you may only need to wear glasses for certain activities, like watching a movie or driving a car.
Contact lenses. For some individuals, contact lenses offer clearer vision and a wider field of view than eyeglasses. However, since contact lenses are worn directly on the eyes, they require proper evaluation and care to safeguard eye health.
Ortho-k or CRT. Another option for treating myopia is orthokeratology, also known as corneal refractive therapy (CRT). In this nonsurgical procedure, you wear a series of specially designed rigid contact lenses to gradually reshape the curvature of your cornea, the front outer surface of the eye. The lenses place pressure on the cornea to flatten it.
Laser procedures. Laser procedures such as LASIK (laser in situ keratomileusis) or PRK (photorefractive keratectomy) are also possible treatment options for myopia in adults. A laser beam of light reshapes the cornea by removing a small amount of corneal tissue.
Other refractive surgery procedures. People who are highly nearsighted or whose corneas are too thin for laser procedures may be able to have their myopia surgically corrected. A doctor may be able to implant small lenses with the desired optical correction in their eyes.
