Bibliographic Details
| Title: |
Risk, causes, and outcomes of visual impairment after loss of vision in the non-amblyopic eye: a population-based study. |
| Authors: |
Rahi JS (AUTHOR), Logan S (AUTHOR), Timms C (AUTHOR), Russell-Eggitt I (AUTHOR), Taylor D (AUTHOR), Rahi, Jugnoo (AUTHOR), Logan, Stuart (AUTHOR), Timms, Christine (AUTHOR), Russell-Eggitt, Isabelle (AUTHOR), Taylor, David (AUTHOR) |
| Source: |
Lancet. 8/24/2002, Vol. 360 Issue 9333, p597-602. 6p. |
| Abstract: |
Background: Screening for amblyopia in early childhood is done in many countries to ensure that affected children are detected and treated within the critical period, and achieve a level of vision in their amblyopic eye that would be useful should they lose vision in their non-amblyopic eye later in life. We aimed to investigate the risk, causes, and outcomes of visual impairment attributable to loss of vision in the non-amblyopic eye.Methods: For 24 months from July, 1997, national surveillance was done to identify all individuals in the UK with unilateral amblyopia (acuity worse than 6/12) who had newly acquired vision loss in the non-amblyopic eye, resulting in acuity of worse than 6/12 or visual-field restriction precluding driving. Information about participants was obtained at presentation and 1 year later. Participants were categorised as having socially significant visual impairment, or visual impairment, severe visual impairment, or blindness, in accordance with WHO taxonomy.Findings: Of 370 eligible individuals, at presentation 104 (28%) had socially significant visual impairment, 180 (49%) visual impairment, and 86 (23%) severe visual impairment or blindness. The minimum risk of permanent visual impairment by age 95 years was 32.9 (95% CI 29.1-36.9) per 100,000 total population. The projected lifetime risk of vision loss for an individual with amblyopia was at least 1.2% (95% CI 1.1-1.4). Only 36 (35%) of 102 people previously in paid employment were able to continue.Interpretation: In the UK, where screening for amblyopia is under review, risk of serious vision loss affecting the non-amblyopic eye and its results are greater than that previously assumed. Thus, in addition to the benefits of improved vision in the amblyopic eye, treatment of amblyopia during childhood is a potentially valuable strategy to prevent incapacitating vision loss later in life. [ABSTRACT FROM AUTHOR] |
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| Database: |
Psychology and Behavioral Sciences Collection |
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