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Consoles of games, screens of computers, television. our eyes are solicited more and more. Result: the visual fatigue became one of the main motives of consultation among the ophthalmologists. How to avoid this phenomenon? Q: The visual fatigue seems to be more and more frequent. How many people are concerned?A: The advanced numbers are impressive: 20 millions of people would suffer from visual fatigue. 60% of the French complain some about an almost daily way and one realizes from it in our consultations. But the evolution of our life styles, that one is child or adult, permits to explain this phenomenon easily. Our vision is solicited closely more and more. So only the seamstresses, the embroideresses and the keen of reading were concerned in the past, today, of other tasks, of which notably work on screen, are the source of visual fatigue. Q: How does this fatigue appear? A: The patients return the same symptoms more or less. They have the eyes that cry or that burn, the vision gets confused, unfold or even. One often speaks of sensations of irritations, tingles and a sensitivity increased to light. For some, of the pains of heads and even some dizziness make themselves feel also. It is generally in the evening, after one work day, that this fatigue becomes heavy and handicapping. Q: What are the factors at the origin of the visual fatigue?A: To see closely, our eye must accommodate to make the clarification, like one camera autofocus. Without one realizes it, our ciliary muscles contract themselves to stick out the crystalline, dragging the imperceptible movements that one calls micro-fluctuations. When one looks at something of near prolonged way, these muscles are solicited extremely. As our eye is not conceived to fix to the same distance during hours, micro-fluctuations are disrupted then, what entails the visual fatigue. Q: How to limit this phenomenon? A: Before all thing, it is necessary to verify by a deepened balance that there is not an unrest visual non correct versions, to look after what correction glasses are optimal and very balanced. Then, to track down, or even to rehabilitate by sessions of orthoptics of possible unrests of the fusion of the two eyes or an insufficiency of convergence. The settings and the glasses are today lighter. These can be treated antireflet, anti-streaks and anti-UV, what improves the visual comfort considerably. Then, it is very important to arrange his environment of work correctly. Attention to the blindings, to the reflections on the screens, to the badly positioned lights. It is necessary to recall, to repeat constantly that one must be installed comfortably, very seated, that the plan of work must be at good height and very illuminated to limit to the maximum tires it of the eyes. It is necessary to vary his plans of reading also, to make of short pauses to prevent to the look from doing the same always finalized. The smoky atmospheres and the air-conditioned offices also participate in the visual fatigue, while already altering the movie of tears less renewed at the time of a prolonged fixing. Q: Do the treatments or the specific corrections exist? A: Numerous vitamins or cocktails of trace elements are judicious to warn the visual fatigue. But one misses today of objective studies permitting to confirm these kindness. Besides, these products often dear must be taken to the long course to have any interest. On the other hand, the tears artificial or certain frosts procure a real relief. Finally, a new corrective glass permitting to fight against the visual fatigue exists recently. Concretely, this glass corrects the vision from afar usual and, by an effect slightly enlarging integrated in the glass. It permits reequilibrer the patient's system accomodatif when this one exhausts itself at the time of a sustained fixing. This new glass Essilor Anti-Fatigue is not a glass progressive or double home as the one intended to the far-sighted people, but a glass corrective unifocal that permits to relieve the effort of adaptation, for people of less than 45 years feeling an ocular fatigue at the time of a prolonged fixing. The advantage is to reduce the equipment to only one pair of glasses that is going to answer the daily variation of the needs. 2009-07-03
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