Sightsavers is launching a three-year programme to provide quality eye care to rural populations in the Morogoro and Singida regions.
Broadcaster Fiona Phillips, TV doctor Dr Sara Kayat and celebrity make-up artist Ruby Hammer tried the simulator as part of a push to raise awareness about sight loss.
Mr Aahiswar is head teacher at Rangai Middle School in central India. He has been trained to screen students for vision problems so children can get the life-changing help they need.
Robbie Peacock and Ciara Smullen travelled to the northern town of Mymensingh to visit a hospital that is saving the sight of thousands of people a year.
By using economics, we can make sure our school eye screening programmes are affordable and efficient, ensuring thousands of children in poorer countries can get the eye care they need.