<unk>  (from Greek: μυωπία<unk>  "near-sightedness"), also called near-or short-sightedness, is a refractive defect of the eye in which collimated light produces image focus in front of the retina when accommodation is relaxed.
Those with<unk>  see nearby objects clearly but distant objects appear blurred. With<unk> , the eyeball is too long, or the cornea is too steep, so images are focused in the vitreous inside the eye rather than on the retina at the back of the eye.  The opposite defect of<unk>  is hyperopia or "farsightedness" or "long-sightedness" — this is where the cornea is too flat or the eye is too short.
Mainstream ophthalmologists and optometrists most commonly correct<unk>  through the use of corrective lenses, such as glasses or contact lenses. It may also be corrected by refractive surgery, such as LASIK. The corrective lenses have a negative optical power (i.e. are concave) which compensates for the excessive positive diopters of the<unk>  eye. In some cases, pinhole glasses are used by patients with low-level<unk> . These work by reducing the blur circle formed on the retina.
Myopia
Cyclopia
Hyperopia
Amblyopia
Blurred vision
Tinnitus
Color blindness
Lagophthalmos