Research from the Thomas Pocklington Trust indicates that people with sight loss have an increased risk of depression. This brief literature review identifies an association between visual impairment and the prevalence of depression.
National data from the Health and Social Care Information Centre (HSCIC), by contrast, suggests that relatively small numbers of people with visual impairment are recruited onto Improving Access to Psychological Therapies (IAPT) services for treatment.
Petch, I. (2016). Access to psychological therapies for people with sight loss and depression: what is the evidence? London: Thomas Pocklington Trust, June 2016. Research Findings, No.52.
Possibly also of interest:
Barua, A. Kademane, K. Das, B. [and] Basilio, MA. (2014). Visual impairment and depression. Journal of Geriatric Care and Research (JGCR). October 2014: 1(1), pp.8-10.