overuse of the eyes is prone to visual fatigue,which mainly manifests itself in conditions such as eye dryness,blurred vision as well as eye pain,and eye soreness.Visual fatigue occurs mainly due to various adverse da...overuse of the eyes is prone to visual fatigue,which mainly manifests itself in conditions such as eye dryness,blurred vision as well as eye pain,and eye soreness.Visual fatigue occurs mainly due to various adverse damages arising on the retina,such as oxidative stress,inflammatory damage,and apoptosis.also,aging of the eye is one of the causes of visual fatigue.Data shows that the number of people suffering from visual fatigue is increasing year by year and involves a wide range of people,especially those who use computers for long periods of time,read and study,and use sophisticated instruments related to ophthalmology(e.g.,microscopes).Current research has confirmed that,while changing one’s bad eye habits,supplementing with appropriate nutrients or foods can significantly reduce visual fatigue,such as lutein,zeaxanthin,anthocyanins,taurine,and other foods.the study shows that vitamins and minerals,as essential nutrients and antioxidants,are involved in various physiological processes in the body and are of great importance and necessity for eye health.However,the frequency of vitamins and minerals applied to the development of functional foods for the relief of visual fatigue is currently low.therefore,this paper provides a detailed overview of the absorption mechanisms of vitamins and minerals in the human body and reviews the potential role of vitamins and minerals applied to the function of relieving visual fatigue.it also suggests the shortcomings of the current research on vitamins and minerals and hopes to provide some references and inspirations for the research and development of functional foods in which vitamins and minerals are applied to assist in the alleviation of visual fatigue.展开更多
AIM: To evaluate the effects of virtual reality(VR) training on different parameters of vision.METHODS: Sixty individuals ranged 18-60 years old with asthenopia were randomly divided into short-term(n=40) and long-ter...AIM: To evaluate the effects of virtual reality(VR) training on different parameters of vision.METHODS: Sixty individuals ranged 18-60 years old with asthenopia were randomly divided into short-term(n=40) and long-term(n=20) treatment groups. They were given a specially designed VR training device only once for 15 min or 3-4 times a day for 15 min each time for 1 mo. The visual acuity, spherical equivalent, accommodative range, accommodative facility, pupil size, and visual fatigue were evaluated before(control) and after VR training. RESULTS: The visual acuity, accommodative range, and accommodative facility increased in subjects of the shortterm treatment group, whereas their pupil size contracted significantly. No significant changes in spherical equivalent and visual fatigue were observed. The changes in distant vision and corrected visual acuity were positively correlated with those in pupil size, but not with spherical equivalent. The accommodative range and accommodative facility improved significantly in subjects of the long-term treatment group. No significant changes in visual acuity, spherical equivalent, pupil size, and visual fatigue were noted. CONCLUSION: VR training can improve the accommodative range and accommodative facility of human eyes. Although short-term VR training can transiently improve vision, which probably due to bright light adaptation, there is no evidence that it can improve myopia.展开更多
The eye is one of the important organs for human beings to obtain information from the outside world and avoid harm,and 90%of human knowledge is obtained through the eye.The center of the retina in the human eye is ca...The eye is one of the important organs for human beings to obtain information from the outside world and avoid harm,and 90%of human knowledge is obtained through the eye.The center of the retina in the human eye is called the macula,and it is the area where vision is most concentrated.Current research suggests that macular pigment is mainly composed of lutein,zeaxanthin,and meso-zeaxanthin,which are able to absorb and attenuate blue light damage to the retina,and since humans cannot synthesize these carotenoids,they must be obtained by supplementing with carotenoid-rich foods.In addition,carotenoids also provide good provitamin A,which provides necessary nutritional support for people’s visual transduction.Therefore,eye health is inseparable from carotenoid supplementation,among which wolfberry,which is rich in a variety of carotenoids,has been confirmed by recent studies to have a good role in promoting eye health,and also provides a good source of natural carotenoids for humans.However,a systematic review of goji berry carotenoids in eye health is lacking in current studies.Based on this,this paper reviews the main carotenoid composition and its extraction and purification in wolfberry,discusses the changes of carotenoids in the process of harvesting and drying wolfberry,reviews the absorption and utilization of carotenoids in wolfberry,and more importantly,discusses the important role of carotenoids in wolfberry in eye health.展开更多
基金supported by the National Key Research and Development Program of China(2023YFF1103802).
文摘overuse of the eyes is prone to visual fatigue,which mainly manifests itself in conditions such as eye dryness,blurred vision as well as eye pain,and eye soreness.Visual fatigue occurs mainly due to various adverse damages arising on the retina,such as oxidative stress,inflammatory damage,and apoptosis.also,aging of the eye is one of the causes of visual fatigue.Data shows that the number of people suffering from visual fatigue is increasing year by year and involves a wide range of people,especially those who use computers for long periods of time,read and study,and use sophisticated instruments related to ophthalmology(e.g.,microscopes).Current research has confirmed that,while changing one’s bad eye habits,supplementing with appropriate nutrients or foods can significantly reduce visual fatigue,such as lutein,zeaxanthin,anthocyanins,taurine,and other foods.the study shows that vitamins and minerals,as essential nutrients and antioxidants,are involved in various physiological processes in the body and are of great importance and necessity for eye health.However,the frequency of vitamins and minerals applied to the development of functional foods for the relief of visual fatigue is currently low.therefore,this paper provides a detailed overview of the absorption mechanisms of vitamins and minerals in the human body and reviews the potential role of vitamins and minerals applied to the function of relieving visual fatigue.it also suggests the shortcomings of the current research on vitamins and minerals and hopes to provide some references and inspirations for the research and development of functional foods in which vitamins and minerals are applied to assist in the alleviation of visual fatigue.
基金Supported by the National Natural Science Foundation of China (No.81800868)the Health and Family Planning Commission of Zhejiang Province,China (No.2018KY057)the Natural Science Foundation of Zhejiang Province (No.LY19H120007)。
文摘AIM: To evaluate the effects of virtual reality(VR) training on different parameters of vision.METHODS: Sixty individuals ranged 18-60 years old with asthenopia were randomly divided into short-term(n=40) and long-term(n=20) treatment groups. They were given a specially designed VR training device only once for 15 min or 3-4 times a day for 15 min each time for 1 mo. The visual acuity, spherical equivalent, accommodative range, accommodative facility, pupil size, and visual fatigue were evaluated before(control) and after VR training. RESULTS: The visual acuity, accommodative range, and accommodative facility increased in subjects of the shortterm treatment group, whereas their pupil size contracted significantly. No significant changes in spherical equivalent and visual fatigue were observed. The changes in distant vision and corrected visual acuity were positively correlated with those in pupil size, but not with spherical equivalent. The accommodative range and accommodative facility improved significantly in subjects of the long-term treatment group. No significant changes in visual acuity, spherical equivalent, pupil size, and visual fatigue were noted. CONCLUSION: VR training can improve the accommodative range and accommodative facility of human eyes. Although short-term VR training can transiently improve vision, which probably due to bright light adaptation, there is no evidence that it can improve myopia.
基金supported by the National Key research and Development Program of china(2023YFF1103802).
文摘The eye is one of the important organs for human beings to obtain information from the outside world and avoid harm,and 90%of human knowledge is obtained through the eye.The center of the retina in the human eye is called the macula,and it is the area where vision is most concentrated.Current research suggests that macular pigment is mainly composed of lutein,zeaxanthin,and meso-zeaxanthin,which are able to absorb and attenuate blue light damage to the retina,and since humans cannot synthesize these carotenoids,they must be obtained by supplementing with carotenoid-rich foods.In addition,carotenoids also provide good provitamin A,which provides necessary nutritional support for people’s visual transduction.Therefore,eye health is inseparable from carotenoid supplementation,among which wolfberry,which is rich in a variety of carotenoids,has been confirmed by recent studies to have a good role in promoting eye health,and also provides a good source of natural carotenoids for humans.However,a systematic review of goji berry carotenoids in eye health is lacking in current studies.Based on this,this paper reviews the main carotenoid composition and its extraction and purification in wolfberry,discusses the changes of carotenoids in the process of harvesting and drying wolfberry,reviews the absorption and utilization of carotenoids in wolfberry,and more importantly,discusses the important role of carotenoids in wolfberry in eye health.
