In young individuals, the natural lens
of the eye is soft and flexible means can easily change its shape, allowing it to focus on objects near the eye. As the years pass,old age, the lens loses its flexibility and can no longer vary according to the focus of the eye. This condition usually becomes noticeable between 40 and 50 years of age.
Being able to see 20/20 does not necessarily mean that you do not need glasses.Your eyes may be taking stress
or you willnot be able to see 20/20 letters for long.so,you need vision checkup.
For your sneezing
and related problems ,take sitopladi choornam 1 tsf thrice daily for 15 days(ayurvedic).Watch for things that cause the problem or allergy
.You need a through check up for that.