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. Author manuscript; available in PMC: 2018 Nov 1.
Published in final edited form as: Ophthalmology. 2017 Jun 16;124(11):1662–1669. doi: 10.1016/j.ophtha.2017.05.015

Figure 2.

Figure 2

The relationship between the 25-item National Eye Institute Visual Functioning Questionnaire (NEI-VFQ-25) composite score and visual function, measured by (A) visual acuity (VA) and (B) visual field mean deviation, over the first 3 years after randomization for eyes assigned to implant therapy. Visual acuity is categorized as 20/40 or better (grey line, square) or worse than 20/40 (black line, circle), and visual field mean deviation is categorized as mild impairment (>−3 dB; light grey line, square), moderate impairment (−3 to −6 dB; grey line, circle), or severe impairment (<−6 dB; black line, triangle). The estimated means with 95% confidence intervals are plotted for each category.