Nation Optical is an optometrist at #01-1002, Ang Mo Kio Ave 4, Singapore 560629, with a 4.7 Google rating from its Ang Mo Kio customers. A good optometrist does far more than read a letter chart: a full eye examination also checks the health of your eyes, picking up early signs of glaucoma, diabetes and high blood pressure before you notice anything wrong. That matters here, since Singapore has some of the world's highest myopia rates and children in particular benefit from regular checks. Look for a practitioner registered with the Optometrists and Opticians Board, and expect the appointment to take longer than a simple lens fitting, with questions about family history and screen habits and, sometimes, dilating drops. Even with perfect vision, an exam every year or two is sensible. For residents of Ang Mo Kio, having a well-rated optometrist on Ang Mo Kio Ave 4 makes an eye check a simple neighbourhood errand.