Yang Yang Optical Shop is an optometrist at Waterloo Centre on Waterloo Street in Kampong Glam, Singapore, with a Google rating of 4.9 from 71 reviews. An optometrist usually tests your eyes, checks your prescription and helps you choose frames and lenses that suit your face and how you use your eyes. A useful visit starts with an eye test and a plain conversation about what you need glasses for, such as reading, screens or driving, since that shapes the lens choice. When choosing an optical shop, look for a clear explanation of the test results, a written prescription you can take elsewhere if you wish and honest advice about whether a cheaper lens will do the job. Regulars often return each year for a check, because small changes in sight are easier to correct early. Anyone considering Yang Yang Optical Shop can read its reviews and ask these questions at its Waterloo Street location in Kampong Glam.