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Myopia: why it is increasing and how to slow it down
Myopia, together with hyperopia and astigmatism, is a refractive error — an optical condition in which images are not correctly focused on the retina. In the myopic eye, the eyeball is slightly too long, or the optical system too powerful.
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Presbyopia: when your arms grow too short
Presbyopia is the progressive difficulty in focusing on nearby objects that appears naturally with age.
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Astigmatism: the defect that blurs vision at every distance
Astigmatism, along with myopia and hyperopia, is a refractive error an optical condition in which images are not correctly focused on the retina.
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Keratoconus: the cornea that changes shape
Keratoconus is a fairly common corneal disease characterized by corneal ectasia – an abnormal bulging of the transparent window of our eyes.
