Information about the Metabolism
Information about Short-sightedness (Myopia)
Short-sightedness (myopia) is a particular form of visual defect. This visual impairment arises when the eye-ball is too long or the light entering the eye is bent too much, coming to a focus point before it reaches the retina (refractive power of the lens). The effect is that objects further away are more blurred on the retina than those closer (hence short-sighted). Short-sightedness is generally not considered a disease since external factors (e.g. too little light) and genetic factors may contribute to the condition. A number of remedies are available from opticians, optometrists and eye-specialists to address the impairment (imaging error).
The extended shape of the eye-ball (elongation) increases the risk of degenerative change in the retina and the optic nerve head (the transition from optic nerve to retina) depending on the severity of the visual impairment.