目的：比较电脑阅读、手机阅读、纸张阅读条件下，调节反应的差异。探讨不同阅读界面、阅读距离以及亮度对调节反应的综合影响。

方法：设置电脑、手机和纸张阅读界面，选取30位青年志愿者，分别在电脑(电脑提供两种不同亮度)、手机以及纸张状态下，使用Grand Seiko WAM 5 500红外自动验光仪测调节反应以及瞳孔大小。用SPSS17.0将结果进行方差分析，比较不同阅读条件对人眼调节的影响。

结果：电脑屏幕正常亮度下的调节滞后为0.52±0.24D，纸张视标下调节滞后为0.73±0.28D，手机视标下调节滞后为0.72±0.29D。电脑正常亮度屏幕下的调节滞后显著小于手机和纸张视标下的调节滞后量，且均有统计学差异(P<0.05)，而手机和纸张视标下调节滞后量无统计学差异。手机阅读引起人眼的调节微波动和瞳孔波动略大于电脑屏幕和纸张，但结果无统计学差异。

结论：人眼在阅读电脑屏幕时调节滞后显著小于手机和纸张，后二者则没有显著区别。电脑屏幕亮度在一定程度内的变化并不影响调节反应。

AIM:To compare the difference of accommodation response under the variety reading conditions including computer screen, mobile phone screen and printed texts. The investigation also included the accommodation response under these conditions with different distances, brightness, dynamic and static testing status.

METHODS:Thirty volunteer subjects were included with normal vision function. The reading target on computer screen, mobile screen and paper were used, respectively. Grand Seiko WAM 5500 infrared automatic refractometer was applied to measure accommodation response. The influence of different reading conditions on accommodation was compared using variance analysis with SPSS17.0.

RESULTS:Accommodation lag under the computer screen with high brightness was 0.52±0.24D, that under papers was 0.73±0.28D, that under mobile phone was 0.72±0.29D. Accommodation lag under the computer screen with high brightness was less than that under mobile phones and paper, the differences were statistically significant(P<0.05). The accommodation lag under mobile phones and paper had no statistical difference. Accommodation microfluctuations and pupil size under the mobile phone was slightly largerer than the accommodation lags under the other conditions, but the difference was not statistically significant.

CONCLUSION:Accommodation lag under the computer screen with high brightness is relatively smaller than that under mobile phone or paper. There is no significant difference between those under phones and paper. With the brightness of computers in a certain range, there is no effect for accommodation response.