Background The widespread use of various video display terminals(VDTs)always had a detrimental impact on ocular health.Prolonged use of smartphones has been one of the leading causes of dry eye(DE)and asthenopia.There...Background The widespread use of various video display terminals(VDTs)always had a detrimental impact on ocular health.Prolonged use of smartphones has been one of the leading causes of dry eye(DE)and asthenopia.Therefore,the purpose of this study is to find a simple and effective strategy to combat screen-related DE and asthenopia.Methods A group of healthy participants aged 18 and above were randomly assigned to three groups and tasked with a 2 h smartphone reading task.After 1h of usage,each group adopted different methods of rest:no rest(Group A),a 10 min eye-closed rest(Group B),or a 10 min eye-closed joint artificial tears rest(Group C).Ophthalmological examinations and questionnaires were administered to all participants before and after the 2 h reading task.Results 90 qualified volunteers,including 29 males and 61 females,were randomly assigned to three groups.Group A demonstrated a significant increase in the severity of DE and asthenopia as evidenced by all the evaluated indices.On the other hand,Group C did not exhibit any notable change in DE and asthenopia symptoms,with an improvement in corneal fluorescein staining(CFS)results(P>0.05)when compared to the pre-reading values.Group B showed a significant increase in ocular surface disease index(OSDI)(P≤0.05)and a decrease in critical flicker frequency(CFF)(P≤0.05).Conclusions Close-eye rest with artificial tears may be a convenient and effective prevention strategy for screen-related DE and asthenopia.展开更多
文摘Background The widespread use of various video display terminals(VDTs)always had a detrimental impact on ocular health.Prolonged use of smartphones has been one of the leading causes of dry eye(DE)and asthenopia.Therefore,the purpose of this study is to find a simple and effective strategy to combat screen-related DE and asthenopia.Methods A group of healthy participants aged 18 and above were randomly assigned to three groups and tasked with a 2 h smartphone reading task.After 1h of usage,each group adopted different methods of rest:no rest(Group A),a 10 min eye-closed rest(Group B),or a 10 min eye-closed joint artificial tears rest(Group C).Ophthalmological examinations and questionnaires were administered to all participants before and after the 2 h reading task.Results 90 qualified volunteers,including 29 males and 61 females,were randomly assigned to three groups.Group A demonstrated a significant increase in the severity of DE and asthenopia as evidenced by all the evaluated indices.On the other hand,Group C did not exhibit any notable change in DE and asthenopia symptoms,with an improvement in corneal fluorescein staining(CFS)results(P>0.05)when compared to the pre-reading values.Group B showed a significant increase in ocular surface disease index(OSDI)(P≤0.05)and a decrease in critical flicker frequency(CFF)(P≤0.05).Conclusions Close-eye rest with artificial tears may be a convenient and effective prevention strategy for screen-related DE and asthenopia.
