THE RESPONSES OF VISUAL FUNCTION TO LUTEIN SUPPLEMENTS IN PEOPLE WITH LONG-TERM DISPLAY LIGHT EXPOSURE
- VernacularTitle:叶黄素干预对长期荧屏光暴露者视功能的影响
- Author:
Le MA
;
Xiaoming LIN
- Publication Type:Journal Article
- Keywords:
lutein;
visual function;
people with long-term display light exposure
- From:
Acta Nutrimenta Sinica
2004;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To examine the effect of lutein supplementation on visual function in people with long-term display light exposure. Method Thirty-seven persons (age 22-30) with long-term display light exposure were divided into low-dose group, high-dose group, and placebo group involving supplementation with 6 mg lutein/d, 12 mg lutein/d, and placebo for 12 w. The levels of serum lutein and visual function indices such as break-up time (BUT), critical flicker fusion frequency (CFF), visuognosis persistence, and reaction time were measured at week 0 and 12. Results After lutein supplementation serum concentrations of high-dose group and low-dose group increased from (0.328?0.120) ?mol/L to (0.733?0.354) ?mol/L, and from (0.356?0.117) ?mol/L to (0.607?0.176) ?mol/L respectively. There was significant increase of break up time in left eyes of high-dose group. Visuognosis persistence was significantly improved, and significant decrease of simple reaction time was observed in high-dose group. No statistical change was observed in critical flicker fusion frequency, discriminative reaction time and choice reaction time during the study. Conclusion Visual function indices such as break-up time, visuognosis persistence and simple reaction time in people with long-term display light exposure who received lutein supplements were significantly improved.
