Myopia is the technical name given to short-sightedness.
The commonest cause of myopia is the eyeball becoming too long. Excessive growth results in the cornea curving too steeply, the length of the eyeball increasing and vision becoming impaired. The measurement used to distinguish between degrees of myopia is a dioptre (D) and denotes the focusing ability of the eye. Myopia which measures anything less than -3.0D is considered mild. Anything over -6.0D is considered to be high, and is termed high myopia.
Usually, once the excessive growth has stopped and the myopia has stabilised, we are able to compensate for it using glasses. If the myopia is of a high degree then it is not so simple. High myopia, also called pathological myopia, is a degenerative condition. If it doesn't stabilise, then difficult to simply treat with glasses.
Myopia causes problems by focusing light in front of the retina. This means that all objects which are far away appear blurred and unclear. It is possible for myopia to develop to the point that even focusing on objects right in front of your face can become difficult.
There are now many ways that dependency on glasses due to myopia can be reduced. Each of these methods works in a slightly different way and are therefore treatments can be tailored in a customised manner for each individual.
What are the options for correction of Myopia?
- Glasses are the cheapest and quickest way to improve vision with myopia
- Contact lenses are available from virtually all opticians shops
- Laser Vision correction is suitable forthose with myopia upto about -7D
- Refractive lens exchange is considered in those with higher refractive errors
It is best to discuss these options with an expert, whomaybe your own optician or an eye doctor