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Robot Vacuum - Top Pick For Busy Households This is a top pick that combines robot vacuum and mop technology. Its sensors let it avoid obstacles, and also empty its own bin. It comes with a smart dustbin as well as 2,700-pascal suction power that can be adjusted to different surfaces. Its app makes it easy to schedule and monitor cleans. What is a robot vacuum? A robot vacuum is an autonomous, small machine that moves around your floor and collects dirt, dust and debris. It can clean hard surfaces like tiles and wood as well as low to med

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To evaluate the effects of virtual reality (VR) training on different parameters of vision. Sixty individuals ranged 18-60 years old with asthenopia were randomly divided into short-term ( =4 and long-term ( =2 treatment groups. They were given a specially designed VR training device only once for 15min or 3-4 times a day for 15min each time for 1mo. The visual acuity, spherical equivalent, accommodative range, accommodative facility, pupil size, and visual fatigue were evaluated before (control) and after VR training. The visual ac