After O level go out to work, don’t ever get a job that needs
you to see scope. Your eyes still got a chance to spoil at this
age, so imagine yourself working 8 hr 30 min for 5 day a week
looking at small objects using the scope. Your eyes will become
like mine… can see some red red colour at the corner and worse if
you wear specs like me, my eyes used to only go blur at around 6pm,
goiing home liao unless got OT. Now after lunch or around 4+ eyes
go blur liao.