Eye

: This article refers to the sight organ. See Eye (disambiguation) for other usages.

Eye related problems

• Achromotropsia aka Maskun — a low cone count or lack of function in cone cells
• Age-related macular degeneration — the photosensitive cells in the macula malfunction and over time cease to work
• Aniridia — a rare congenital eye condition leading to underdevelopment or even absence of the iris of the eye
• Amblyopia aka lazy eye — poor or blurry vision due to either no transmission or poor transmission of the visual image to the brain
• Anisometropia — the lenses of the two eyes have different focal lengths
• Arc eye aka snow blindness — a painful condition caused by exposure of unprotected eyes to bright light
• Astigmatism — the cornea or the lens of the eye is not perfectly spherical, resulting in different focal points in different planes.
• Blindness — the brain does not receive optical information, through various causes
• Cataracts — the lens becomes opaque
• Color blindness — the inability to perceive differences between some or all colors that other people can distinguish
• Conjunctivitis — inflammation of the conjunctiva (the outermost layer of the eye and the inner surface of the eyelids)
• Esotropia — the tendency for eyes to become cross-eyed
• Exotropia — the tendency for eyes to look outward
• Farsightedness aka Hyperopia —
• Floaters — shadow-like shapes which appear singly or together with several others in the field of vision
• Glaucoma — increased intraocular pressure causes damage to the optic nerve
• Hyperopia aka Farsightedness — the inability to focus on near objects, often caused by the eyeball being too short
• Keratoconus — the cornea thins and changes shape to be more like a cone than a parabola
• Keratoconjunctivitis sicca — dry eyes
• Maskun aka Achromotropsia — a low cone count or lack of function in cone cells
• Myopia — also known as nearsightedness. It is a refractive error in which the image focuses in front of the retina, leading to far away objects to become blurred
• Night blindness aka Nyctalopia
• Nyctalopia aka Nightblindness — a condition making it difficult or impossible to see in the dark
• Ophthalmoplegia — the partial or total paralysis of the eye muscles
• Presbyopia — a condition that occurs with growing age and results in the inability of the human eye to focus on objects up close
• Retinal detachment — the retina detaches from the choroid, leading to blurred and distorted vision
• Retinopathy — general term referring to non-inflammatory damage to the retina of the eye
• Retinoschisis — the retina separates into several layers and may detach
• Scotoma aka Blind spot
• Snow blindness aka Arc eye — a painful condition caused by exposure of unprotected eyes to bright light
• Strabismus aka Crossed eye or Wandering eye (or, for one outward-turned eye, walleye) — a disorder of the eyes involving a lack of coordination between the muscles of the eyes
• Uveitis — inflammatory process involving the interior of the eye.