Many businesses are struggling in today's sluggish economy. According to ShopperTrak's national retail sales estimate, total retail sales for the week of Christmas 2010 fell 4.1 percent and foot traffic at brick-and-mortar stores fell 6.1 percent (Christmas week retail sales Christmas). To increase sales, companies need to look for new marketing ideas and revenue streams. Two ideas are using Web advertising and creating online storefronts: "click-and-mortar" stores versus "brick-and-mortar" stores (Journal of Interactive Advertising 2002). Companies are also targeting the massive “Baby Boomer generation” to attract a larger audience. Businesses increase their Web presence effectively and efficiently by creating sites that cater to Baby Boomer seniors and anyone with vision impairments. They create these sites using Web accessibility. The term low vision describes people who report having difficulty seeing even while wearing corrective lenses, as well as those who are blind, according to the American Foundation of the Blind (Facts and Figures). The World Health Organization (WHO) divides vision into four categories: normal vision, moderate vision impairment, severe vision impairment and blindness. Low vision includes individuals with “moderate visual impairment” and “severe visual impairment”. The visually impaired category includes legally blind individuals; the Braille Institute defines legally blind as someone who has "central visual acuity" equal to or lower than 20/200 even with corrective lenses, such as glass or contact lenses. Low vision and blindness comprise the spectrum of visual impairments. The WHO states that glaucoma, cataracts and “uncorrected refractive errors, such as myopia and astigmatism, are major causes of visual impairment worldwide. ...... middle of paper ......C/q/id/53349/t/2>.Steinfeld, Charles. “Understanding click-and-mortar approaches to e-commerce: a conceptual framework and research agenda.” Interactive advertising newspaper. 2.2. Spring 2002. Print.Tim Berners-Lee: Biography. World Wide Web Consortium, 30 April 2010. Web. 10 April 2011. .United States. Census Bureau. Americans with Disabilities: 2005. Washington: GPO, 2008. Print.29 USC. Section 794d. 1998. Print.US Web Retail Sales to Reach $249 Billion by Study '14. Reuters, March 8, 2010. Web. April 7, 2011. The rate of vision loss is expected to double as Boomers age. SeniorLiving and Web. 8 April 2011. .World Health Organization, April 2011. Web. 6 April 2011. .