back pain.When the reading stand is used in conjunction with a magnifying vision aid (e.g. system varioPLUS), an optimum angle of view and a uniform distance to the reading material are always achieved, as

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instructions. If in doubt, please ask your optician for help. Can I charge the battery handle of the VarioPlus system and use it at the same time? No. For technical reasons, it cannot be used during the 4-hour [...] When the eye compensates through accommodation, this often leads to eye strain, fatigue and headache. Plus powered lenses, which bundle the incoming light, can be used to correct long sightedness. What is