方法：本研究录入19位受试者，每位受试者观看90分钟的2D电视或90分钟的3D电视，两部电视观看间隔时间为一周，顺序随机。每次观看电视前及观看后15min内都做相关视功能检查，检查包括以下四种视功能参数：调节功能(调节反应、调节微波动、调节灵敏度、正相对调节、负相对调节、AC/A)，融像性聚散功能(远距负融像性聚散功能、远距正融像性聚散功能、近距负融像性聚散功能、近距正融像性聚散功能)，隐斜量(远距隐斜量、近距隐斜量)，立体视。

结果：无论是与观看前的基础值比较，还是与观看2D电视后的数据比较，观看3D电视后近距离调节反应增加，汇聚减少，远距隐斜量向外隐斜改变(P <0.05)。

结论：持续观看3D电视会对人们的视功能有一定影响，主要是打破了调节和聚散系统的平衡。厂家和公众应该引起重视，将调节功能、融像性聚散功能、隐斜量等参数作为评估3D电视安全性的指标。

METHODS: The following four visual functional parameters: accommodation(accommodative response; accommodative microfluctuation; accommodative facility; PRA, positive relative accommodation; NRA, negative relative accommodation; gradient AC/A, the gradient accommodative convergence to accommodation ratio), vergence(DBI, distance base-in; DBO, distance base-out; NBI, near base-in; NBO, near base-out), phoria(distance and near lateral phoria), and stereopsis were measured for nineteen health participants before and after viewed 2D TV for 90min and 3D TV for 90min.

RESULTS: Both compared with the baseline data and the data after 2D viewing, increased near accommodative responses, decreased convergence, changed phoria(more exophoric)at distance were detected after 3D TV viewing(all P <0.05).

CONCLUSION: Prolonged viewing of 3D TV will influence human visual function, especially the disruption of the natural relationship between binocular convergence and accommodation induced by conflicting stimulus. Manufacturers and the public should consider the parameters of accommodation, vergence, and phoria as main indicators for detecting the safety of 3D TV.