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Association of Visit Adherence and Visual Acuity in Patients With Neovascular Age-Related Macular Degeneration: Secondary Analysis of the Comparison of Age-Related Macular Degeneration Treatment Trial.
Ramakrishnan, MS, Yu, Y, VanderBeek, BL
JAMA ophthalmology. 2020;(3):237-242
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IMPORTANCE Visit adherence has been shown to play a significant role in patient health outcomes. The effect of missing visits on visual acuity (VA) in individuals with neovascular age-related macular degeneration has yet to be characterized. OBJECTIVE To quantify the association between patients' adherence to randomized clinical trial visits and VA in individuals with neovascular age-related macular degeneration based on 4 visit adherence metrics. DESIGN, SETTING, AND PARTICIPANTS This is a secondary analysis of the Comparison of Age-Related Macular Degeneration Treatment Trial randomized clinical trial. Individuals with age-related macular degeneration were recruited from 44 clinical centers in the United States between February 2008 and December 2009. The 2-year study protocol required 1 visit every 4 weeks (every 21-35 days for a total of 26 visits) for monthly vs pro re nata treatments of bevacizumab vs ranibizumab. Analysis took place from November 2018 through May 2019. EXPOSURES Visit adherence was measured in 4 ways: total number of missed visits, average number of days (avg days) between each visit, longest duration in days (max days) between visits, and visit constancy (the tally of 3-month periods with at least 1 visit attended). Average and max days were also categorized as on time (28-35 days), late (36-60 days), and very late (>60 days). MAIN OUTCOMES AND MEASURES Change in Early Treatment Diabetic Retinopathy Study VA between the baseline and the last visit. Linear multivariate regression models were applied to analyze the association between visit adherence and change in VA, controlling for age, sex, baseline VA, anti-vascular endothelial growth factor drug, number of injections, and dosing regimen. RESULTS Of 1178 patients, the mean (SD) age was 79.1 (7.3) years, and 727 (61.7%) were women. The mean (SD) number of missed visits was 2.4 (3.1). Overall, 1091 patients (92.6%) had complete visit constancy during the entire study period. Average days were categorized with 1060 patients (90.0%) classified as on time, 108 (9.2%) were late, and 10 (0.8%) were very late. For max days between visits, 197 patients (16.7%) were on time, 773 (65.6%) were late, and 208 (17.7%) were very late. After controlling for covariates, the late (avg days = -6.1; max days = -2.0) and very late (avg days = -12.5; max days = -5.9) groups saw fewer letters in both the avg and max days categories than patients in the on-time group (P < .001). CONCLUSIONS AND RELEVANCE These results provide evidence to support the concept that visit adherence contributes to VA outcomes in neovascular age-related macular degeneration. The magnitude of the association of visit adherence with VA outcomes in this clinical scenario suggests that substantial effort should be expended to strive for visit adherence or therapeutic strategies that reduce the visit burden without compromising VA outcomes. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT00593450.
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Long-term Effect of Intraocular Lens vs Contact Lens Correction on Visual Acuity After Cataract Surgery During Infancy: A Randomized Clinical Trial.
Lambert, SR, Cotsonis, G, DuBois, L, Nizam Ms, A, Kruger, SJ, Hartmann, EE, Weakley, DR, Drews-Botsch, C, ,
JAMA ophthalmology. 2020;(4):365-372
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IMPORTANCE Although intraocular lenses (IOLs) are often implanted in children, little is known whether primary IOL implantation or aphakia and contact lens correction results in better long-term visual outcomes after unilateral cataract surgery during infancy. OBJECTIVE To compare long-term visual outcomes with contact lens vs IOL correction following unilateral cataract surgery during infancy. DESIGN, SETTING, AND PARTICIPANTS This multicenter randomized clinical trial enrolled 114 infants with a unilateral congenital cataract who underwent cataract surgery with or without primary IOL implantation between 1 and 6 months of age. Data on long-term visual outcomes were collected when the children were age 10.5 years (July 14, 2015, to July 12, 2019) and analyzed from March 30 through August 6, 2019. INTERVENTIONS Intraocular lens implantation at the time of cataract surgery. MAIN OUTCOMES AND MEASURES Best-corrected visual acuity using the electronic Early Treatment Diabetic Retinopathy Study (E-ETDRS) testing protocol. Analysis was performed on an intention-to-treat basis. RESULTS Best-corrected visual acuity was measured at age 10.5 years for 110 of the 114 patients (96%) enrolled as infants. The participants included 58 girls (53%) and 52 boys (47%). Overall, 27 of the children (25%) had good (logMAR 0.30 [Snellen equivalent, 20/40] or better) visual acuity in the treated eye (12 [22%] in the IOL group and 15 [27%] in the aphakia group), but 50 children (44%) had a visual acuity of logMAR 1.00 (Snellen equivalent, 20/200) or worse (25 [44%] in the IOL group and 25 [44%] in the aphakia group). The median logMAR acuity in the treated eye was similar in children randomized to receive an IOL at the time of cataract extraction (0.89; interquartile range [IQR], 0.33-1.43 [Snellen equivalent, 20/159]) and those who remained aphakic (0.86; IQR, 0.30-1.46 [Snellen equivalent, 20/145]) (IQR, 0.30-1.46; P = .82). Although the overall difference in median visual acuity between the 2 groups was small, the estimate was imprecise (99% CI for the difference in medians was -0.54 to 0.47). CONCLUSIONS AND RELEVANCE As in previous phases of the study, visual acuity outcomes were highly variable with only 27 children (25%) achieving excellent visual acuity in their treated eye and 50 children (44%) having poor vision in the treated eye. Implanting an IOL at the time of cataract extraction was neither beneficial nor detrimental to the visual outcome. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT00212134.
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Associations of Variation in Retinal Thickness With Visual Acuity and Anatomic Outcomes in Eyes With Neovascular Age-Related Macular Degeneration Lesions Treated With Anti-Vascular Endothelial Growth Factor Agents.
Evans, RN, Reeves, BC, Maguire, MG, Martin, DF, Muldrew, A, Peto, T, Rogers, C, Chakravarthy, U
JAMA ophthalmology. 2020;(10):1043-1051
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IMPORTANCE When initiating anti-vascular endothelial growth factor (VEGF) treatment for patients with neovascular age-related macular degeneration (nAMD), knowledge of prognostic factors is important for advising patients and guiding treatment. We hypothesized that eyes with greater fluctuation in retinal thickness over time have worse outcomes than eyes with less variation. OBJECTIVE To investigate whether visual and anatomic outcomes in eyes with nAMD initiating anti-VEGF treatment are associated with fluctuations in retinal thickness. DESIGN, SETTING, AND PARTICIPANTS In this study using data from the Comparison of Age-Related Macular Degeneration Treatments Trials (CATT) and the Inhibition of VEGF in Age-Related Choroidal Neovascularization (IVAN) randomized clinical trial, people with previously untreated nAMD were included. Data were collected from February 2008 to November 2012, and data were analyzed from April 2017 to April 2020. MAIN OUTCOMES AND MEASURES Foveal center point thicknesses (FCPTs) were extracted from 1165 study eyes from CATT and 566 study eyes from the IVAN trial, excluding those with 3 measurements or less. For each eye, the SD of FCPT was calculated. Eyes were grouped by FCPT SD quartile. Associations of FCPT SD quartile with outcomes were quantified at month 24 or the last available visit by linear or logistic regression, adjusting for baseline best-corrected visual acuity (BCVA) and randomized allocations to drug and treatment regimen, for BCVA, development of fibrosis, and development of macular atrophy. RESULTS Of the 1731 included patients, 1058 (61.1%) were female, and the mean (SD) age was 78.6 (7.4) years. The median (interquartile range) FCPT SD was 40.2 (27.1-61.2) in the IVAN cohort and 59.0 (38.3-89.4) in the CATT cohort. After adjustment for baseline BCVA and trial allocations, BCVA worsened significantly across the quartiles of FCPT SD; the difference between the first and fourth quartiles was -6.27 Early Treatment Diabetic Retinopathy Study letters (95% CI, -8.45 to -4.09). The risk of developing fibrosis and macular atrophy also increased across FCPT SD quartiles. Odds ratios ranged from 1.40 (95% CI, 1.03 to 1.91) for quartile 2 to 1.95 (95% CI, 1.42 to 2.68) for quartile 4 for fibrosis and from 1.32 (95% CI, 0.90 to 1.92) for quartile 2 to 2.10 (95% CI, 1.45 to 3.05) for quartile 4 for macular atrophy. CONCLUSIONS AND RELEVANCE Greater variation in retinal thickness in eyes with nAMD during treatment with anti-VEGF was associated with worse BCVA and development of fibrosis and macular atrophy in these post hoc analyses, despite protocol-directed treatment frequency. Practitioners may want to consider variation in retinal thickness when advising patients about their prognosis.
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Assessment of the DRCR Retina Network Approach to Management With Initial Observation for Eyes With Center-Involved Diabetic Macular Edema and Good Visual Acuity: A Secondary Analysis of a Randomized Clinical Trial.
Glassman, AR, Baker, CW, Beaulieu, WT, Bressler, NM, Punjabi, OS, Stockdale, CR, Wykoff, CC, Jampol, LM, Sun, JK, ,
JAMA ophthalmology. 2020;(4):341-349
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IMPORTANCE Among eyes with center-involved diabetic macular edema (CI-DME) and good visual acuity (VA), randomized clinical trial results showed no difference in VA loss between initial observation plus aflibercept only if VA decreased, initial focal/grid laser plus aflibercept only if VA decreased, or prompt aflibercept. Understanding the initial observation approach is relevant to patient management. OBJECTIVE To assess the DRCR Retina Network protocol-defined approach and outcomes of initial observation with aflibercept only if VA worsened. DESIGN, SETTING, AND PARTICIPANTS This was a post hoc secondary analyses of a randomized clinical trial of the DRCR Retina Network Protocol V that included 91 US and Canadian sites from November 2013 to September 2018. Participants were adults (n = 236) with type 1 or 2 diabetes, 1 study eye with CI-DME, and VA letter score at least 79 (Snellen equivalent, 20/25 or better) assigned to initial observation. Data were analyzed from March 2019 to November 2019. INTERVENTIONS Initial observation and follow-up with aflibercept only for VA loss of at least 10 letters from baseline at 1 visit or 5 to 9 letters at 2 consecutive visits. Follow-up occurred at 8 weeks and then every 16 weeks unless VA or optical coherence tomography central subfield thickness worsened. MAIN OUTCOMES AND MEASURES Whether individuals received aflibercept. RESULTS Among 236 eyes in 236 individuals (149 [63%] male; median age, 60 years [interquartile range, 53-67 years]) randomly assigned to initial observation, 80 (34%) were treated with aflibercept during 2 years of follow-up. At 2 years, the median VA letter score was 86.0 (interquartile range, 89.0-81.0; median Snellen equivalent, 20/20 [20/16-20/25]). Receipt of aflibercept was more likely in eyes with baseline central subfield thickness at least 300 μm (Zeiss-Stratus equivalent) vs less than 300 μm (45% vs 26%; hazard ratio [HR], 1.98 [95% CI, 1.26-3.13], continuous P = .005), moderately severe nonproliferative diabetic retinopathy (Early Treatment Diabetic Retinopathy Study retinopathy severity level 47) and above vs moderate nonproliferative diabetic retinopathy (retinopathy severity level 43) and below (51% vs 27%; HR, 2.22 [95% CI, 1.42-3.47], ordinal P < .001), and among participants whose nonstudy eye received DME treatment within 4 months of randomization vs not (52% vs 25%; HR, 2.55 [95% CI, 1.64-3.99], P < .001). CONCLUSIONS AND RELEVANCE Most eyes managed with initial observation plus aflibercept only if VA worsened maintained good vision at 2 years and did not require aflibercept for VA loss. However, the eyes in the trial were approximately twice as likely to receive aflibercept for VA loss if they had greater baseline central subfield thickness, worse diabetic retinopathy severity level, or a nonstudy eye receiving treatment for DME. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT01909791.
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Timing of Peak Vision Gains in Patients with Neovascular Age-Related Macular Degeneration Treated with Ranibizumab.
Khurana, RN, Chang, L, Day, BM, Ghanekar, A, Stoilov, I
Ophthalmology. Retina. 2020;(8):760-766
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PURPOSE To investigate whether time to peak best-corrected visual acuity (BCVA) was predictive of magnitude of BCVA changes at study end in patients with neovascular age-related macular degeneration (nAMD) who received ranibizumab and assess whether patient baseline characteristics and on-study events were predictive of time to peak BCVA. DESIGN Exploratory analysis of data from HARBOR (ClinicalTrials.gov identifier, NCT00891735). PARTICIPANTS Treatment-naïve patients 50 years of age or older with subfoveal nAMD. METHODS Data by ranibizumab dose were pooled; data by dosing schedule (pro re nata [PRN] and monthly) were evaluated separately. Time to peak BCVA was the monthly evaluation at which the patient's greatest gain in Early Treatment Diabetic Retinopathy Study (ETDRS) letters from baseline was achieved. Early peakers achieved peak BCVA between day 7 and month 6; late peakers achieved peak BCVA between months 7 and 12, months 13 and 18, and months 19 and 24. Variables evaluated for effect of time to peak BCVA included baseline demographic and clinical characteristics, presence of persistent subretinal fluid (SRF) or intraretinal fluid (IRF), and on-study events (atrophy status, fibrosis, retinal pigment epithelium tears). MAIN OUTCOME MEASURES Time to peak BCVA and its predictive value for magnitude of BCVA changes and BCVA at month 24 (study end). RESULTS Most patients reached peak BCVA after more than 6 months of treatment: 64% in the PRN group (301/474) and 70% in the monthly groups (327/469). Thirty-six percent and 30% of patients, respectively, peaked early, and 64% and 70%, respectively, peaked late. At month 24, early peakers on average lost vision (PRN, -1.6 ETDRS letters; monthly, -1.9 ETDRS letters). By contrast, late peakers achieved significantly better vision gains from baseline (PRN, 8.5-17.7 ETDRS letters; monthly, 10.1-18.7 ETDRS letters). No differences were found in patient characteristics, persistent SRF or IRF, or on-study events to account for the observed different outcomes between early and late peakers. CONCLUSIONS In most treatment-naïve patients with nAMD, vision gains were achieved at a slower rate (>6 months), and a slower response was associated with better vision outcomes after 24 months of ranibizumab. These findings suggest that continued treatment may result in greater vision improvements when consistent anti-vascular endothelial growth factor therapy is maintained over a longer period.
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Lack of Longitudinal Association Between Thiazolidinediones and Incidence and Progression of Diabetic Eye Disease: The ACCORD Eye Study.
Gower, EW, Lovato, JF, Ambrosius, WT, Chew, EY, Danis, RP, Davis, MD, Goff, DC, Greven, CM, ,
American journal of ophthalmology. 2018;:138-147
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PURPOSE To report the longitudinal association between use of thiazolidinediones (TZDs), visual acuity (VA) change, and diabetic eye disease incidence and progression. DESIGN Cohort study ancillary to a randomized clinical trial. METHODS We analyzed baseline and 4-year follow-up data of 2856 ACCORD trial participants with no history of proliferative diabetic retinopathy. Based on stereoscopic fundus photographs, we evaluated diabetic macular edema (DME) progression and DR progression. We also evaluated 10- and 15-letter change on the ETDRS visual acuity chart. Main outcome measures were incidence or progression of DME or DR and change in visual acuity. RESULTS TZD use was not associated with DME incidence in either the analysis of any use (adjusted odds ratio [aOR] [95% CI]: 1.22 [0.72-2.05]) or duration of use (aOR: 1.02 [0.99-1.04]). Diabetic retinopathy (DR) incidence/progression was more common in patients with no or mild DR at baseline who were ever treated with TZDs (aOR: 1.68 [1.11-2.55]), but this association disappeared when adjusting for the time on TZD (aOR: 1.02 [1.00-1.04]). DR progression among those with moderate or worse DR at baseline was no different between TZD users and non-users. TZD usage had no effect on the ultimate visual acuity outcome. CONCLUSION In this longitudinal study of patients with type 2 diabetes, we found no association between TZD use and visual acuity outcomes or DME progression, and no consistent evidence of increased DR progression in patients ever treated with TZDs vs those never treated with TZDs.
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Early Response to Anti-Vascular Endothelial Growth Factor and Two-Year Outcomes Among Eyes With Diabetic Macular Edema in Protocol T.
Bressler, NM, Beaulieu, WT, Maguire, MG, Glassman, AR, Blinder, KJ, Bressler, SB, Gonzalez, VH, Jampol, LM, Melia, M, Sun, JK, et al
American journal of ophthalmology. 2018;:93-100
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PURPOSE Assess associations of 2-year visual acuity (VA) outcomes with VA and optical coherence tomography central subfield thickness (CST) after 12 weeks of anti-vascular endothelial growth factor treatment for diabetic macular edema in DRCR.net Protocol T. DESIGN Randomized clinical trial. METHODS Setting: Multicenter (89 U.S. sites). PATIENT POPULATION Eyes with VA and CST data from baseline and 12-week visits (616 of 660 eyes randomized [93.3%]). INTERVENTION Six monthly injections of 2.0 mg aflibercept, 1.25 mg bevacizumab, or 0.3 mg ranibizumab; subsequent injections and focal/grid laser as needed for stability. MAIN OUTCOME MEASURES Change in VA from baseline and VA letter score at 2 years. RESULTS Twelve-week VA response was associated with 2-year change in VA and 2-year VA letter score for each drug (P < .001) but with substantial individual variability (multivariable R2 = 0.38, 0.29, and 0.26 for 2-year change with aflibercept, bevacizumab, and ranibizumab, respectively). Among eyes with less than 5-letter gain at 12 weeks, the percentages of eyes gaining 10 or more letters from baseline at 2 years were 42% (20 of 48), 31% (21 of 68), and 47% (28 of 59), and median 2-year VA was 20/32, 20/32, and 20/25, in the aflibercept, bevacizumab, and ranibizumab groups, respectively. Twelve-week CST response was not strongly associated with 2-year outcomes. CONCLUSIONS A suboptimal response at 12 weeks did not preclude meaningful vision improvement (ie, ≥ 10-letter gain) in many eyes at 2 years. Eyes with less than 5-letter gain at 12 weeks often had good VA at 2 years without switching therapies.
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Panretinal Photocoagulation Versus Ranibizumab for Proliferative Diabetic Retinopathy: Factors Associated with Vision and Edema Outcomes.
Bressler, SB, Beaulieu, WT, Glassman, AR, Gross, JG, Melia, M, Chen, E, Pavlica, MR, Jampol, LM, ,
Ophthalmology. 2018;(11):1776-1783
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PURPOSE To identify baseline factors associated with change in visual acuity or development of vision-impairing central-involved diabetic macular edema (DME) over 2 years when treating proliferative diabetic retinopathy (PDR) with ranibizumab or panretinal photocoagulation (PRP). DESIGN Post hoc analyses of randomized, multicenter clinical trial data. PARTICIPANTS Eyes completing the 2-year visit (n = 328) or without vision-impairing central-involved DME at baseline (n = 302) in Diabetic Retinopathy Clinical Research Network Protocol S. METHODS Intravitreous ranibizumab (0.5 mg/0.05 ml) or PRP. MAIN OUTCOME MEASURES Change in visual acuity (area under the curve) and development of vision-impairing (20/32 or worse) central-involved DME over 2 years. RESULTS After multivariable model selection with adjustment for baseline visual acuity and central subfield thickness, no factors were identified as associated with change in visual acuity or development of vision-impairing central-involved DME within the ranibizumab group. In the PRP group, worse change in visual acuity was more likely with higher hemoglobin A1c level (-0.6 letters per 1% increase; 95% confidence interval [CI], -1.2 to -0.1 letters; continuous P = 0.03), more severe diabetic retinopathy (difference between high-risk PDR or worse vs. moderate PDR or better, -2.8 letters [95% CI, -5.5 to -0.2 letters]; continuous P = 0.003), and higher mean arterial pressure (difference between ≥100 mmHg vs. <100 mmHg, -2.0 letters [95% CI, -4.6 to 0.5 letters]; continuous P = 0.009). Development of vision-impairing central-involved DME was more likely with higher hemoglobin A1c level (hazard ratio [HR] per 1% increase, 1.31 [95% CI, 1.13-1.52]; continuous P < 0.001), more severe diabetic retinopathy (HR for high-risk PDR or worse vs. moderate PDR or better, 1.46 [95% CI, 0.73-2.92]; continuous P = 0.03), and the presence of cystoid abnormalities within 500 μm of the macula center (HR, 2.90 [95% CI, 1.35-6.24]; P = 0.006). CONCLUSIONS For eyes managed with PRP, higher hemoglobin A1c level and more severe diabetic retinopathy were associated with less vision improvement and an increased risk of vision-impairing central-involved DME developing. When managing PDR with ranibizumab, eyes gained vision, on average, with no baseline characteristics identified as associated with visual acuity or central-involved DME outcomes.
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Effect of Bevacizumab vs Aflibercept on Visual Acuity Among Patients With Macular Edema Due to Central Retinal Vein Occlusion: The SCORE2 Randomized Clinical Trial.
Scott, IU, VanVeldhuisen, PC, Ip, MS, Blodi, BA, Oden, NL, Awh, CC, Kunimoto, DY, Marcus, DM, Wroblewski, JJ, King, J, et al
JAMA. 2017;(20):2072-2087
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IMPORTANCE Studies have established the efficacy and safety of aflibercept for the treatment of macular edema due to central retinal vein occlusion. Bevacizumab is used off-label to treat this condition despite the absence of supporting data. OBJECTIVE To investigate whether bevacizumab is noninferior to aflibercept for the treatment of macular edema secondary to central retinal or hemiretinal vein occlusion. DESIGN, SETTING, AND PARTICIPANTS The SCORE2 randomized noninferiority clinical trial was conducted at 66 private practice or academic centers in the United States, and included 362 patients with macular edema due to central retinal or hemiretinal vein occlusion who were randomized 1:1 to receive aflibercept or bevacizumab. The first participant was randomized on September 17, 2014, and the last month 6 visit occurred on May 6, 2016. Analyses included data available as of December 30, 2016. INTERVENTIONS Eyes were randomized to receive intravitreal injection of bevacizumab (1.25 mg; n = 182) or aflibercept (2.0 mg; n = 180) every 4 weeks through month 6. MAIN OUTCOMES AND MEASURES The primary outcome was mean change in visual acuity (VA) letter score (VALS) from the randomization visit to the 6-month follow-up visit, based on the best-corrected electronic Early Treatment Diabetic Retinopathy Study VALS (scores range from 0-100; higher scores indicate better VA). The noninferiority margin was 5 letters, and statistical testing for noninferiority was based on a 1-sided 97.5% confidence interval. RESULTS Among 362 randomized participants (mean [SD] age, 69 [12] years; 157 [43.4%] women; mean [SD] VALS at baseline, 50.3 [15.2] [approximate Snellen VA 20/100]), 348 (96.1%) completed the month 6 follow-up visit. At month 6, the mean VALS was 69.3 (a mean increase from baseline of 18.6) in the bevacizumab group and 69.3 (a mean increase from baseline of 18.9) in the aflibercept group (model-based estimate of between-group difference, -0.14; 97.5% CI, -3.07 to ∞; P = .001 for noninferiority), meeting criteria for noninferiority. Ocular adverse events in the aflibercept group included 4 participants with intraocular pressure (IOP) more than 10 mm Hg greater than baseline; ocular adverse events in the bevacizumab group included 1 participant with endophthalmitis (culture negative), 9 with IOP more than 10 mm Hg greater than baseline, 2 with IOP higher than 35 mm Hg, and 1 with angle-closure glaucoma not attributed to the study drug or procedure. CONCLUSIONS AND RELEVANCE Among patients with macular edema due to central retinal or hemiretinal vein occlusion, intravitreal bevacizumab was noninferior to aflibercept with respect to visual acuity after 6 months of treatment.
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Vision related quality of life in patients with type 2 diabetes in the EUROCONDOR trial.
Trento, M, Durando, O, Lavecchia, S, Charrier, L, Cavallo, F, Costa, MA, Hernández, C, Simó, R, Porta, M, ,
Endocrine. 2017;(1):83-88
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To evaluate vision related quality of life in the patients enrolled in The European Consortium for the Early Treatment of Diabetic Retinopathy, a clinical trial on prevention of diabetic retinopathy. Four-hundred-forty-nine patients, 153 women, with type 2 Diabetes and no or mild diabetic retinopathy were enrolled in a 2-year multicenter randomized controlled trial. The 25-item National Eye Institute Visual Functioning Questionnaire was used to explore 12 subscales of vision related quality of life. The patients were 62.8 ± 6.7 years old and had 11.1 ± 5.6 years known disease duration. Diabetic retinopathy was absent in 193 (43.0 %) and mild in 256 (57.0 %). Patients without diabetic retinopathy were older, had shorter diabetes duration and used less insulin and glucose-lowering agents but did not differ by gender, best corrected visual acuity or any subscale, except vision specific mental health and vision specific role difficulties. Patients with reduced retinal thickness at the ganglion cell layer (n = 36) did not differ for diabetic retinopathy but were older, had lower best corrected visual acuity and worse scores for ocular pain, color vision and peripheral vision. On multivariable analysis, worse scores for general vision remained associated with reduced retinal thickness, diabetes duration and best corrected visual acuity, and scores for visual specific mental health with diabetic retinopathy and lower best corrected visual acuity. Visual specific role difficulties were only associated with reduced best corrected visual acuity. Scores for driving decreased among females, with worsening of Hemoglobin A1c and best corrected visual acuity. Color vision depended only on reduced retinal thickness, and peripheral vision on both reduced thickness and best corrected visual acuity. The National Eye Institute Visual Functioning Questionnaire could detect subtle changes in patients' perception of visual function, despite absent/minimal diabetic retinopathy.