Far sight difficulty reading minor details on boards or street sign at times.?

Many possibilities: This depends upon your age. If you are in the 10-40 year old age group, the most likely cause is uncorrected vision eyeglass needs. In the older age group there are some diseases that can cause this problem including glaucoma, cataracts and macular degeneration. Diabetes is a possibility at any age. See your ophthalmologist who can determine the cause of this.

Nearsightedness.: You need an eye exam, as you may be nearsighted, which means you have difficulty seeing things that are far away, such as signs on the road while you're driving. You may need glasses or contact lenses.