Abstract:
Importance:This study used optical coherence tomographic angiography to assess for impaired blood flow in myopic eyes with or without open-angle glaucoma. Objective:To compare the peripapillary perfused capillary density (PCD) between eyes with and without glaucoma. Design, Setting, and Participants:In this cross-sectional study at a tertiary glaucoma referral practice, we recruited patients with myopic eyes of spherical equivalent of more than -3.0 diopters with and without open-angle glaucoma, patients with nonmyopic eyes with glaucoma, and patients with no disease from February 2016 to October 2016. We obtained 4.5 × 4.5-mm optical coherence tomographic angiography images of the optic nerve head and calculated PCD as the ratio of pixels associated with capillaries to the number of pixels in the region of interest after large blood vessel removal. Both eyes of each patient were used in the analysis. Continuous variables were assessed by analysis of variance and Tukey tests. A marginal model of generalized estimating equations was performed to adjust for confounding factors and intraclass correlations. Main Outcomes and Measures:Mean PCD. Results:We matched 87 patients with myopic eyes with glaucoma (of whom 39 [45%] were women), 17 with myopic eyes without glaucoma (of whom 10 [59%] were women), and 93 with non-myopic eyes with glaucoma (of whom 55 [59%] were women) for visual field defects and included 51 control participants (or whom 38 [75%] were women). Mean (SD) ages were 67.5 (12.0) years for patients with myopia and glaucoma, 48.2 (19.0) years for those with myopia without glaucoma, 67.3 (11.0) years for those with glaucoma without myopia, and 64.7 (8.9) years in control participants. Global PCD demonstrated a progressive decrease from the control group (mean [SD], 41.0 [4.2]) to those with myopia without glaucoma (38.4 [5.8]) to those with glaucoma without myopia (31.9 [7.5]) to those with both (28.2 [6.0]; all P < .001). The mean difference in global PCD between the 3 groups and control group, adjusted for age and axial length, was greatest in those with myopia and glaucoma (-11.1; 95% CI, -14.0 to -8.1; P < .001), followed by those with glaucoma without myopia (-8.6; 95% CI, -10.9 to -6.3; P < .001) and those with myopia without glaucoma (-2.8; 95% CI, -6.9 to 1.2; P = .17). No interaction was found between glaucoma and myopia. Conclusions and Relevance:These findings demonstrate peripapillary microvascular attenuation to a greater extent in open-angle glaucoma than myopia. The cross-sectional design means we cannot determine if this association is a cause and/or is associated with other confounding factors.
journal_name
JAMA Ophthalmoljournal_title
JAMA ophthalmologyauthors
Suwan Y,Fard MA,Geyman LS,Tantraworasin A,Chui TY,Rosen RB,Ritch Rdoi
10.1001/jamaophthalmol.2018.0776subject
Has Abstractpub_date
2018-05-01 00:00:00pages
507-513issue
5eissn
2168-6165issn
2168-6173pii
2677076journal_volume
136pub_type
杂志文章abstract:IMPORTANCE:Visualization and interpretation of the optic nerve and retina are essential parts of most physical examinations. OBJECTIVE:To design and validate a smartphone-based retinal adapter enabling image capture and remote grading of the retina. DESIGN, SETTING, AND PARTICIPANTS:This validation study compared the...
journal_title:JAMA ophthalmology
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abstract:Importance:Visual impairment and visual disorders often co-occur with other chronic conditions. Understanding patterns of multimorbidity is important for reducing health care use and improving health outcomes. Objective:To identify chronic condition patterns and their association with visual impairment and health care...
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journal_title:JAMA ophthalmology
pub_type: 杂志文章,多中心研究
doi:10.1001/jamaophthalmol.2015.6097
更新日期:2016-04-01 00:00:00
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journal_title:JAMA ophthalmology
pub_type: 杂志文章
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journal_title:JAMA ophthalmology
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doi:10.1001/jamaophthalmol.2014.352
更新日期:2014-06-01 00:00:00
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pub_type: 杂志文章
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journal_title:JAMA ophthalmology
pub_type: 杂志文章
doi:10.1001/jamaophthalmol.2019.4502
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abstract:IMPORTANCE:Anterior chamber seeding following intraophthalmic artery chemotherapy is rarely reported. OBJECTIVES:To describe clinicopathologic observations in eyes in which intraophthalmic artery chemotherapy for retinoblastoma failed and to report anterior chamber involvement. OBSERVATIONS:A retrospective case serie...
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pub_type: 杂志文章
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abstract:Importance:The Diabetic Retinopathy Clinical Research Network Protocol S randomized clinical trial results suggest that ranibizumab is a reasonable treatment alternative to panretinal photocoagulation (PRP) when managing proliferative diabetic retinopathy (PDR), with or without concomitant baseline diabetic macular ede...
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pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1001/jamaophthalmol.2017.0837
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abstract:IMPORTANCE:Patients and clinicians need to accurately assess the risks and benefits of pars plana vitrectomy for proliferative diabetic retinopathy, but clinical trial data may not reflect real-world experience. OBJECTIVE:To prospectively audit the complications of vitrectomy for proliferative diabetic retinopathy and...
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更新日期:2016-01-01 00:00:00
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journal_title:JAMA ophthalmology
pub_type: 杂志文章
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更新日期:2013-08-01 00:00:00
abstract:IMPORTANCE:Further research is crucial to better understand the reason for falls in individuals with visual impairment (VI) and to develop appropriate fall prevention strategies. OBJECTIVE:To compare balance measures in individuals with normal vision, VI, and uncorrected refractive error (URE). DESIGN AND SETTING:Cro...
journal_title:JAMA ophthalmology
pub_type: 杂志文章
doi:10.1001/jamaophthalmol.2013.316
更新日期:2013-08-01 00:00:00
abstract:Importance:Most premature infants will not develop retinopathy of prematurity (ROP) of clinical relevance, yet screening evaluations often continue beyond hospital discharge, even for those infants without ROP. Objectives:To identify the characteristics of infants at low risk for ROP, for whom further postdischarge sc...
journal_title:JAMA ophthalmology
pub_type: 杂志文章
doi:10.1001/jamaophthalmol.2018.5520
更新日期:2019-02-01 00:00:00
abstract:OBJECTIVE:To assess the benefit of increased follow-up and treatment with ranibizumab between months 24 and 36 in the Ranibizumab for Edema of the Macula in Diabetes (READ-2) Study. DESIGN:Prospective, interventional, multicenter follow-up of a randomized clinical trial. METHODS:Patients who agreed to participate bet...
journal_title:JAMA ophthalmology
pub_type: 杂志文章,多中心研究,随机对照试验
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更新日期:2013-02-01 00:00:00
abstract:Importance:Vitreoretinal lymphoma is a diagnostic challenge and the pathophysiology is still unclear. Objective:To describe an imaging finding seen on optical coherence tomography (OCT) of patients with vitreoretinal lymphoma. Design, Setting, and Participants:This case series study was a retrospective medical record...
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abstract:IMPORTANCE:The optic disc pit (ODP) has been considered a region of localized susceptibility to the damage of glaucoma. OBJECTIVE:To determine whether the rate of retinal nerve fiber layer (RNFL) thinning differs according to the presence and structural characteristics of an ODP in primary open-angle glaucoma. DESIGN...
journal_title:JAMA ophthalmology
pub_type: 杂志文章
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更新日期:2015-01-01 00:00:00
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更新日期:2016-04-01 00:00:00
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更新日期:2019-06-20 00:00:00
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pub_type: 杂志文章
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更新日期:2013-02-01 00:00:00
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pub_type: 杂志文章,随机对照试验
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更新日期:2013-10-01 00:00:00
abstract:Importance:Anti-vascular endothelial growth factor (anti-VEGF) is a breakthrough treatment for wet age-related macular degeneration (wAMD), the most common cause of blindness in western countries. Anti-VEGF treatment prevents vision loss and has been shown to produce vision gains lasting as long as 5 years. Although th...
journal_title:JAMA ophthalmology
pub_type: 杂志文章
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更新日期:2019-11-14 00:00:00
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pub_type: 杂志文章,随机对照试验
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更新日期:2014-03-01 00:00:00
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journal_title:JAMA ophthalmology
pub_type: 杂志文章
doi:10.1001/jamaophthalmol.2019.0005
更新日期:2019-05-01 00:00:00