Hello and welcome to Healthcare Magic. Thanks for your query.
A eye power
of -1.25 is not normal for any age and is indicative of myopia
(otherwise known as short-sightedness). This means that you have difficulty in seeing distant objects clearly, for example difficulty in reading the blackboard or distant roadsigns, etc.
I would advise you to wear spectacles as prescribed by an opthalmologist, in order to improve the vision. It is better to correct this problem early because if left uncorrected, there is a chance that it may worsen.
Wish you all the best.
Dr. Jonas Sundarakumar