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Fig. 4 | Ophthalmology and Therapy

Fig. 4

From: Content Validity and Cognitive Debriefing of a Patient-Reported Outcome Instrument Evaluating Symptoms and Disease Impact in Patients with Geographic Atrophy

Fig. 4

Absolute change in total 10-item Visual Impairment Symptom Severity Assessment (VISSA-10) score representing meaningful change for patients with geographic atrophy secondary to dry age-related macular degeneration. One patient ended the interview before this question was reached. Absolute changes in total VISSA-10 scores representing meaningful worsening are displayed in orange, and those representing meaningful improvement are displayed in blue. Scores are on a “0”–“100” scale of visual difficulties where “0” = “no visual difficulties” and “100” = “the most extreme of visual difficulties”

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