Data for: The adaptation and acceptance of Defocus Incorporated Multiple Segments（DIMS） lens for Chinese adolescents

The purpose of this study is to explore the adaptability of chinese adolescents to the new multi-zone positive defocusing optical lens, mainly based on the visual results and subjective visual symptoms after the wearing.
Considering that some teenagers can't clearly express their subjective feelings because the young age, we especially set up an adult group to reduce the false negative rate.
After wearing the two lenses for 30 minutes, the distant visual acuity in the primary gaze was examined under both bright（500 lux）and dim (50 lux) illuminance, using high (100%) and low (10%) contrast ETDRS visual charts. Near visual acuity at 40 cm through the central optical zone as well as through the mid-peripheral zone were also measured under these two levels of ambient illuminance.
A questionnaire regarding visual performance and acceptability of the assigned lenses was requested to fulfilled at the one-week visit (The questionnaire is attached in the appendix). The subject was requested to select the listed symptoms and give a score according to the frequency of occurrence: 0 = None (0 times / day), 1 = Occasionally (1-2 times / day), 2 = Sometimes (3-4 times / day), 3 = Always (5-6 times / day), 4 = Complete (> 7 times / day). The acceptability of the assigned lenses was evaluated by answering the following questions: 1. Would you like to wear SV in your daily life? 2. Would you like to wear DIMS in your daily life? 3. Which one you dislike more? 4. If the lens you dislike can significantly slow myopic progression by 59%, would you like to wear?

本研究的宗旨在于探析中国青少年对新多区正焦负散光光学镜片的适应能力，主要基于佩戴后视觉效果及主观视觉症状。鉴于部分青少年因年轻而难以清晰表达其主观感受，本研究特别设立了成人组以降低假阴性率。在佩戴两种镜片30分钟后，于明亮（500勒克斯）和昏暗（50勒克斯）两种光照条件下，使用高（100%）和低（10%）对比度的ETDRS视力表，对主视眼下的远视力进行了检查。此外，在上述两种环境光照水平下，还测量了通过中央光学区和中间周边区的40厘米近视力。要求受试者在一周随访时填写有关视力表现及指定镜片接受度的问卷（问卷详见附录）。受试者被要求从列表中选择症状，并根据其发生的频率进行评分：0 = 无（每日0次），1 = 偶尔（每日1-2次），2 = 有时（每日3-4次），3 = 经常（每日5-6次），4 = 频繁（每日>7次）。通过回答以下问题评估指定镜片的接受度：1. 您是否愿意在日常生活中佩戴SV？2. 您是否愿意在日常生活中佩戴DIMS？3. 您更不喜欢哪一个？4. 如果您不喜欢的镜片能显著减缓近视进展59%，您是否愿意佩戴？