Vuong Nguyen1, Vincent Daien1,2,3, Robyn H Guymer4, Ian L McAllister5, Nigel Morlet6, Daniel Barthelmes7, Mark C Gillies1. 1. The Save Sight Institute, Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia. 2. Department of Ophthalmology, Gui De Chauliac Hospital, Montpellier, France. 3. Inserm, Montpellier, France. 4. Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, Department of Surgery (Ophthalmology), University of Melbourne, Melbourne, Victoria, Australia. 5. Lions Eye Institute, Centre for Ophthalmology and Vision Science, University of Western Australia, Perth, Western Australia, Australia. 6. Department of Population Health, University of Western Australia, Perth, Western Australia, Australia. 7. Department of Ophthalmology, University Hospital Zurich, University of Zurich, Zurich, Switzerland.
Abstract
IMPORTANCE: Identifying variables that influence presenting visual acuity (VA) in patients with neovascular age-related macular degeneration (nAMD) is important because it is a strong predictor of long-term outcomes. BACKGROUND: To assess the clinical and social characteristics associated with low presenting VA in nAMD patients. DESIGN: The present study is a cross-sectional analysis from a prospective, observational database. PARTICIPANTS: We identified 3242 treatment-naïve patients from 54 Australian practices in the Fight Retinal Blindness! registry. METHODS: Age, gender, ethnicity and VA were recorded at the baseline visit. Socio-economic status was determined using the Australian Bureau of Statistics socio-economic indexes for areas. MAIN OUTCOME MEASURES: Association between clinical and socio-economic characteristics with presenting VA was identified. RESULTS: Poor VA (≤35 letters) in the presenting eye was associated with older age (adjusted odds ratio [AOR]: 1.33 for patients aged ≥80 years vs. <80 years [95% confidence interval, CI: 1.04, 1.71]), treatment at a public practice (AOR: 1.91 for public vs. private practices [95% CI: 1.46, 2.50]) and intermediate (36-69 letters) VA in the fellow eye (AOR: 0.67 [95% CI: 0.47, 0.95] and 0.64 [95% CI: 0.48, 0.85] for poor [≤35 letters] and good [≥70 letters] VA vs. intermediate VA in the fellow eye). Gender, ethnicity and socio-economic status were not independently associated with VA at presentation. CONCLUSIONS AND RELEVANCE: Poor presenting vision is detrimental to the long-term outcomes of nAMD. Poor presentation of nAMD in Australia may not be related to socio-economic circumstances, but due to systems of care. Further research is warranted to determine why patients at public practices present with worse vision compared with private practices in Australia.
IMPORTANCE: Identifying variables that influence presenting visual acuity (VA) in patients with neovascular age-related macular degeneration (nAMD) is important because it is a strong predictor of long-term outcomes. BACKGROUND: To assess the clinical and social characteristics associated with low presenting VA in nAMD patients. DESIGN: The present study is a cross-sectional analysis from a prospective, observational database. PARTICIPANTS: We identified 3242 treatment-naïve patients from 54 Australian practices in the Fight Retinal Blindness! registry. METHODS: Age, gender, ethnicity and VA were recorded at the baseline visit. Socio-economic status was determined using the Australian Bureau of Statistics socio-economic indexes for areas. MAIN OUTCOME MEASURES: Association between clinical and socio-economic characteristics with presenting VA was identified. RESULTS: Poor VA (≤35 letters) in the presenting eye was associated with older age (adjusted odds ratio [AOR]: 1.33 for patients aged ≥80 years vs. <80 years [95% confidence interval, CI: 1.04, 1.71]), treatment at a public practice (AOR: 1.91 for public vs. private practices [95% CI: 1.46, 2.50]) and intermediate (36-69 letters) VA in the fellow eye (AOR: 0.67 [95% CI: 0.47, 0.95] and 0.64 [95% CI: 0.48, 0.85] for poor [≤35 letters] and good [≥70 letters] VA vs. intermediate VA in the fellow eye). Gender, ethnicity and socio-economic status were not independently associated with VA at presentation. CONCLUSIONS AND RELEVANCE: Poor presenting vision is detrimental to the long-term outcomes of nAMD. Poor presentation of nAMD in Australia may not be related to socio-economic circumstances, but due to systems of care. Further research is warranted to determine why patients at public practices present with worse vision compared with private practices in Australia.