Being nearsighted is far more common than it once was. The case rate of myopia (近视) in Americans     1     (increase) by 66 percent since the early 1970s, according to a study by the National Eye Institute; in China and other East Asian countries, more than half of recent high school graduates are thought     2     (be) the persons who suffer myopia.

Myopia results when eyeballs are     3     (long) than normal, changing the angle at which light enters the eye and the ability to focus     4     distant objects. The disorder     5     (usual) begins before adolescence, when the eye is growing, but it can worsen in early adulthood.

Some experts connect the myopia to the many hours young people spend in staring at     6     (computer) and other screens. But a recent study published in JAMA Ophthalmology suggests that a greater factor may be a side effect of all that screen-watching — it’s     7     (keep) children inside.

This new study shows that a lack of direct sunlight may damage vision. Strong correlations   (关联) were found between current eyesight and     8     (people) lifetime exposure to sunlight. Those     9     had gotten the most sun, particularly between the ages of 14 and 19, were about 25 percent less likely to have developed myopia by middle age. Exposure to sunlight up to     10     age of 30 also brought a protective benefit.

With a popular online comic strip （连环画），overseas Chinese artist Cao Siyu     1    （ enjoyable）sets about deconstructing stereotypes （成见）and cultural misunderstandings betweenEast and West.

After she encountered many misunderstandings and came face to face with stereotypical views about China, Cao was inspired to create Tiny Eyes Comics, an internet-based cartoon strip    2     (illustrate) the big world through tiny Chinese eyes”. Since her first illustration in late 2016, Cao followers     3     (post） more than 300 comics to her Instagram account,    4    has attracted about 41, 000 followers.

Italian magazine Grazia says ： " Her simple sketches have played    5    big part in making iteasier to understand Chinese culture."One of her comics shows the cultural     6    ( difference) behind the debate about usage of masks, which has been a divisive topic throughout the pandemic. To wear or not to wear, that is the question that has led to     7     ( expect) controversy and,     8    .some cases, even physical conflict, in some parts of the world. In the strip she explains that Chinese people wear masks     9    ( prevent) infection, as well as avoid passing the virus to others.

Many foreign readers say they find her illustrations enlightening, helping them to understand China, while Chinese immigrants have felt understood, according to Cao. This feedback and    10    (connect) with her readers has been "the biggest motivation"^， for her to keep creating.