Having a -5.00 number of glasses is indicative of a myopia. This kind of number can be seen in people who have a bigger eye or a longer eye. You will require glasses for this number for distance vision as well as reading.
This number can cause strain for reading if you do not use it and strain for distance vision as well. Not using this number can also cause accomodative spasm. This number can also lead to squinting of eyes . This kind of number in children can cause eye strain and progressive increase in number
-5.00 number can even be needed for distance vision by people who are straining their eyes or are working on a laptop or pc the whole day.
You can use contact lenses instead of glasses and this number can be removed by the use of laser lasik surgery or
contoura lasik surgery.
The axial length of the eye is more than normal by 1.5 mm in with this number which can be measured by a IOL master scan. This kind of number increases the risk of having a retinal deatchment, lattices or holes in the reinta. A retina exam every year is necessary.