For those wondering why you need a check-up when you have perfectly healthy eyes, it is actually to detect budding problems. This way you can nip them in the bud and prevent facing grave eye problems that require complex and extensive care. Issues with vision can be caused by simple changes in the lenses to other more serious problems with the internal anatomy of the eye. By getting your eyes checked you can also identify the root cause of problems and attend to it accordingly. Common problems with regard to vision include changes in the shape of the lens. The need to wear corrective lenses is becoming more and more common thanks to the extensive use of screens in our everyday lives. You need not go to an ophthalmologist to get your eyes checked. In Sri Lanka, you can utilize the Vision Care Optical Services to detect a problem with the lens. Once you have got a prescription from the Vision Care optical service you can obtain the lenses from there itself.