Mr Wee Chin Wei, 84, having his eyes checked by optometry student Brenda Ang, 19, at Ngee Ann Polytechnic yesterday. Some 270 underprivileged senior citizens, adults and children were given free eye screenings to mark World Sight Day. Spectacles were also prescribed and provided for free to those in need and referrals were given to those with more serious eye and vision problems. The free screenings were coordinated by Optometry Giving Sight, a non-profit organisation.