9/13/2023 0 Comments Crossover health optometristCentral RegionĪddress: 2821 Emerywood Parkway, Suite 200, Richmond, VA 23294Ĭurrent hours: Monday through Friday from 8am-4:30pmĬurrent services: Specialty medical care and related procedures including surgery, rehab, etc.Ĭurrently accepting new patients: Must be referred by a partner primary care clinicĬrossOver Health Care Ministry – Richmond ClinicĪddress: 108 Cowardin Avenue, Richmond, VA 23224Ĭurrent hours: Monday - Thursday from 8:30am-5pm, Friday from 8:30am-12pmĬurrent services: Primary and specialty care, chronic disease management, medication pickup and medications management, dental, eye, mental health counseling, OB/GYN and women’s care, HIV/AIDS diagnosis and treatment, case management, health education and COVID-19 testing and vaccines.Ĭurrently accepting new patients: Prospective patients should call and select Option 6 to set up a time for new patient eligibility screening appointment. Each clinic sets its own eligibility requirements and guidelines, and all must be contacted directly for help. However, not all clinics offer all services and not all areas of Virginia have a free or charitable clinic. Clinics are independent, nonprofit, volunteer-driven and community-based organizations. Clinics offer a variety of health care services, including medical, dental, vision, mental health and pharmacy services. © 2017 The Authors Ophthalmic & Physiological Optics © 2017 The College of Optometrists.Below are the Virginia Association of Free & Charitable Clinics member clinics only (not all free clinics in Virginia are VAFCC members). We find a lack of high quality evidence to support using BB spectacle lenses for the general population to improve visual performance or sleep quality, alleviate eye fatigue or conserve macular health.īlue light blocking macular changes sleep-wake cycle spectacles systematic review visual performance. We found no studies investigating effects on macular structure or function. A study involving normal participants found no observed difference in sleep quality. One study reported a small improvement in sleep quality in people with self-reported insomnia after wearing high compared to low-BB lenses (MD = 0.80 ) using a 10-point Likert scale. There was no evidence of inter-group differences for either low BB (MD = 0.00 ) or high BB lenses (MD = -0.05 ), nor evidence of a difference in the proportion of participants showing an improvement in symptoms of eyestrain or eye fatigue. Both studies compared eyestrain symptoms with Likert scales. There was no observed difference between low BB and standard lens groups, but there was a less negative change in CFF between the high and low BB groups (MD = 1.81 ). Another study measured critical fusion frequency (CFF), as a proxy for eye fatigue, on wearers of low and high BB lenses, pre- and post- a two-hour computer task. One study compared the effect of BB lenses with clear lenses on contrast sensitivity (CS) and colour vision (CV) using a pseudo-RCT crossover design there was no observed difference between lens types (log CS Mean Difference (MD) = -0.01, CV total error score on 100-hue MD = 1.30 ). Three studies (with 136 participants) met our inclusion criteria these had limitations in study design and/or implementation. Risk of bias was assessed using the Cochrane tool. We searched MEDLINE, EMBASE, the Cochrane Library and clinical trial registers, until 30 April 2017. We included randomised controlled trials (RCTs), recruiting adults from the general population, which investigated the effect of BB spectacle lenses on visual performance, symptoms of eyestrain or eye fatigue, changes to macular integrity and subjective sleep quality. The aim of this review was to investigate the relative benefits and potential harms of these lenses. Blue-blocking (BB) spectacle lenses, which attenuate short-wavelength light, are being marketed to alleviate eyestrain and discomfort when using digital devices, improve sleep quality and potentially confer protection from retinal phototoxicity.
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