CLB is a nonprofit organization that has been serving the Greater Washington Region for over 100 years. Here are some of the life-changing programs and services that we provide to enable people who are visually impaired or blind, to remain independent. Low Vision Care Services: A Low Vision Clinic, Senior and Adult Services Program: Independent Living Skills Training and Travel Training, Case Management, Support Groups Assistive Technology: AT Devices, Computer Training, Technology assessments, and training on digital data scanning.