Most eye doctors recommend a regular vision examination every year or two, depending on the age of the patient and his health. Optometrists and ophthalmologists are able to detect many diseases in the beginning stages when they are more easily treated. Eyeglass prescriptions are written on prescription pads that look similar to prescription medicine orders. […]
Day: جولای 16, 2012
The process used to ensure your corners are at a 90 degree angle is known as 3 4 5 or the Pythagorean Triple. You may have heard the geometric law behind the measurement, known as the Pythagorean Theorem a + b = c. No need to worry if you not good at math; this is […]