这是因为大多数的阅读设备都可以增大字体字号从而适应自己的需要，从而方便了那些视力不好人。
That is because with most devices you can enlarge the font size to as large as you like, which will help people with failing eyesight.
定期眼科检查可以让眼科保健专家帮助你矫正或适应视力改变，同时也能早期发现其他眼科问题。
Regular eye exams give your eye care specialist a chance to help you correct or adapt to vision changes, as well as detect eye problems at the earliest stage.
另外，实验还显示，碳酸钙眼睛允许石鳖在水中和空气中达到相同的视力，这可能有助于它们适应潮汐变化。
For another thing, the experiments suggest aragonite allows the chitons to see equally well in air or underwater, something that's probably useful as tides ebb around the mollusks.
调整右目镜(图1序号3)，以获得与操作者视力相适应的视度，获得清晰的图像。
Adjust the right eyepiece (No. 3 in Fig. 1), to get the visibility adaptive with operators eyesight, obtain the clear image.
关闭创口的细节和眼前段损伤的处理，以及玻璃体切割术的适应症，所有这些均为获得最佳视力的关键。
Details of wound closure, management of anterior segment injuries, and indications for vitrectomy are all crucial for obtaining best visual results.
结论玻璃体切除术有效治疗严重眼外伤，掌握手术适应症和时机，能最大限度挽救视力和眼球。
Conclusions Vitrectomy is effective for severe ocular injury, suitable indications and surgical timing could greatly rehabilitate vision and reconstruct eyeball.
调整右目镜4，以获得与操作者视力相适应的视度。
Adjust the right eyepiece 4 to obtain the visibility correspond to eyesight of operators.
适应症：白内障、结膜炎、视力不足、近视、老花眼、视力减退及眼部疾病。
Indications: Cataract, Conjunctivitis, Myopia, Presbyopia, eye sight degeneration and other eye disease.
适应症：白内障、结膜炎、视力不足、近视、老花眼、视力减退及眼部疾病。
Indications: Cataract, Conjunctivitis, Myopia, Presbyopia, eye sight degeneration and other eye disease.
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