Whether photographers or the general public, the first thing that comes to mind for them while choosing a monitor is definitely size. The size of monitors have evolved from 19- and 21-inch monitors to the mainstream 27- and 32-inch monitors nowadays. From the perspective of photographers, using a larger screen to browse images delivers a greater visual enjoyment. Furthermore, larger screens also accommodate more windows when using professional image processing software, which also improves work efficiency. That being said, is larger really better when it comes to monitor size? Unfortunately, the answer is no. The optimal distance between the user and the monitor is directly proportional to the monitor size. The ideal distance is generally 1.5-times of the size of the monitor (the diagonal length of the display area). In other words, the larger the monitor, the greater distance is required. If users lean too close to a monitor, the images displayed will appear blurry, which stresses the vision and leads to discomfort. On the other hand, keeping a longer distance than needed will leave the user unable to identify image details or even texts. Therefore, larger is not always better when it comes to choosing a monitor. The ideal monitor size is optimal for browsing and working while guaranteeing comfort is ideal.