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Yuen YS, Holder GE, Lingam G, Shen TYT. Diffuse retinal dysfunction following immune reconstitution uveitis in patients with prior cytomegalovirus retinitis: a novel observation. Doc Ophthalmol 2023; 147:139-145. [PMID: 37639171 DOI: 10.1007/s10633-023-09947-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 08/01/2023] [Indexed: 08/29/2023]
Abstract
PURPOSE To report continuing diffuse retinal dysfunction following resolution of immune reconstitution uveitis (IRU) in patients with cytomegalovirus retinitis (CMVR). METHODS Retrospective case series describing two patients with IRU following CMVR who underwent serial fundus photography and macular optical coherence tomography. One patient had serial electrophysiology. RESULTS Both patients had CMVR successfully treated with antiviral medication. The affected eyes later developed IRU that resolved with steroids. However, following resolution, chronic retinal damage was evidenced by ellipsoid line loss in one case and gradual optic disc cupping in the other. Electrophysiology in both cases revealed generalized retinal dysfunction worse in the eye with more severe IRU and demonstrated objectively the efficacy of treatment intervention in the patient with serial recordings. CONCLUSIONS Patients with IRU following CMV retinitis may have continuing diffuse retinal dysfunction despite apparent recovery and normal visual acuity. An aggressive approach to inflammation control may be warranted in such patients.
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Affiliation(s)
- Yew Sen Yuen
- Department of Ophthalmology, National University Hospital, 5 Lower Kent Ridge Rd, Singapore, 119074, Singapore.
| | - Graham E Holder
- Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- UCL Institute of Ophthalmology, London, UK
| | - Gopal Lingam
- Department of Ophthalmology, National University Hospital, 5 Lower Kent Ridge Rd, Singapore, 119074, Singapore
| | - Tina Yu Ting Shen
- Department of Ophthalmology, National University Hospital, 5 Lower Kent Ridge Rd, Singapore, 119074, Singapore
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van Genderen JG, Verkade CR, Van den Hof M, Demirkaya N, Schrantee AGM, Verbraak FD, Pajkrt D. Development of retinal structure in perinatally HIV-infected children and adolescents: A longitudinal and cross-sectional assessment. PLoS One 2023; 18:e0282284. [PMID: 36862721 PMCID: PMC9980730 DOI: 10.1371/journal.pone.0282284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Accepted: 02/12/2023] [Indexed: 03/03/2023] Open
Abstract
In perinatally HIV-infected (PHIV) children, cross-sectional studies reported on subtle structural retinal differences and found associations between the retina and structural brain changes. Our objective is to investigate whether neuroretinal development in PHIV children is similar to the development in healthy matched controls and to explore associations with the brain structure. We measured RT using optical coherence tomography (OCT) on two occasions in 21 PHIV children or adolescents and 23 matched controls-all with good visual acuity-with a mean interval of 4.6 years (SD 0.3). We also included 22 participants (11 PHIV children and 11 controls) together with the follow-up group for a cross-sectional assessment using a different OCT device. Magnetic resonance imaging (MRI) was used to assess the white matter microstructure. We used linear (mixed) models to assess changes in RT and its determinants (over time), adjusting for age and sex. The development of the retina was similar between the PHIV adolescents and controls. In our cohort, we found that changes in the peripapillary RNFL was significantly associated with changes in WM microstructural makers: fractional anisotropy (coefficient = 0.030, p = 0.022) and radial diffusivity (coefficient = -0.568, p = 0.025). We found comparable RT between groups. A thinner pRNFL was associated with lower WM volume (coefficient = 0.117, p = 0.030). PHIV children or adolescents appear to have a similar development of the retinal structure. In our cohort, the associations between RT and MRI biomarkers underscore the relation between retina and brain.
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Affiliation(s)
- Jason G. van Genderen
- Department of Pediatric Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC, Location Academic Medical Center, Amsterdam, the Netherlands
- * E-mail:
| | - Charissa R. Verkade
- Department of Pediatric Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC, Location Academic Medical Center, Amsterdam, the Netherlands
| | - Malon Van den Hof
- Department of Pediatric Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC, Location Academic Medical Center, Amsterdam, the Netherlands
| | - Nazli Demirkaya
- Department of Ophthalmology, Amsterdam UMC, Location Academic Medical Center, Amsterdam, the Netherlands
| | - Anouk G. M. Schrantee
- Department of Radiology and Nuclear Medicine, Location Academic Medical Center, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Frank D. Verbraak
- Department of Ophthalmology, Amsterdam UMC, Location Academic Medical Center, Amsterdam, the Netherlands
| | - Dasja Pajkrt
- Department of Pediatric Infectious Diseases, Emma Children’s Hospital, Amsterdam UMC, Location Academic Medical Center, Amsterdam, the Netherlands
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Xie LY, Chen C, Kong WJ, Du KF, Guo CG, Wei WB. A comparative study on retinal thickness of the macular region among AIDS patients with normal ocular fundus, HIV-related microvascular retinopathy patients, and cytomegalovirus retinitis patients. Medicine (Baltimore) 2019; 98:e16073. [PMID: 31261518 PMCID: PMC6617201 DOI: 10.1097/md.0000000000016073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 05/08/2019] [Accepted: 05/18/2019] [Indexed: 11/25/2022] Open
Abstract
The present study aims to measure the retinal thickness of the macular region of AIDS patients with normal ocular fundus, HIV-related microvascular retinopathy patients and cytomegalovirus retinitis (CMVR) patients by optical coherence tomography, and generalize the characteristics of retinal thickness of these 3 groups of patients.In this retrospective case series, the study object comprised of 111 AIDS patients who received diagnosis and treatment in the Ophthalmology Department of Beijing Youan Hospital. There are 33 patients in the AIDS normal ocular fundus group, 47 patients in the HIV-related microvascular retinopathy group, and 31 patients in the CMVR group. The retinal thickness of the macular region of these above patients was measured. The main indicators were retinal thickness of 9 macular partitions, best corrected visual acuity, CD4+ T lymphocyte count, and the start of highly active antiretroviral therapy.In the CMVR group, except for the nasal-outer and temporal-outer sectors, the thickness of the affected eye of the rest of the regions was greater than that of healthy eye (P < .05). Furthermore, there was a difference in thickness of the superior-outer and inferior-outer sectors between the AIDS normal ocular fundus group and HIV-related microvascular retinopathy group. The difference in thickness of the superior-inner sector between patients in the AIDS normal ocular fundus group and CMVR group was not statistically significant, while the difference in thickness of the rest of the regions was statistically significant. The difference in thickness of various regions between patients in the HIV-related microvascular retinopathy group and CMVR group was statistically significant.The retinal thickness of patients in the CMVR group generally increased, the retinal thickness of superior-outer and inferior-outer sections of patients in the HIV-related microvascular retinopathy group increased, when compared to the AIDS normal ocular fundus group. These optical coherence tomography (OCT) examination results present its own characteristics in different eye diseases in AIDS patients, and different stages of eye disease.
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Affiliation(s)
| | | | | | | | | | - Wen-Bin Wei
- Beijing Tongren Eye Center, Beijing Key Laboratory of Intraocular Tumor Diagnosis and Treatment, Beijing Ophthalmology & Visual Sciences Key Lab, Beijing Tong Ren Hospital, Capital Medical University, Beijing, China
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Demirkaya N, Wit F, Schlingemann R, Verbraak F. Neuroretinal Degeneration in HIV Patients Without Opportunistic Ocular Infections in the cART Era. AIDS Patient Care STDS 2015; 29:519-32. [PMID: 26258992 DOI: 10.1089/apc.2015.0091] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Subtle structural and functional retinal abnormalities, termed 'HIV-associated Neuroretinal Disorder (HIV-NRD)', have been reported in HIV patients receiving combination antiretroviral therapy (cART), without infectious retinitis or any apparent fundus abnormalities otherwise. In this review, we provide an overview of studies investigating HIV-NRD in HIV patients without opportunistic ocular infections in the cART era, and try to elucidate underlying mechanisms and associated risk factors. Most studies focused on patients with severe immune-deficiency and demonstrated that patients with nadir CD4 counts<100 cells/μL are most at risk for neuroretinal damage, with a thinner retinal nerve fiber layer, subtle loss of color vision and/or contrast sensitivity, visual field deficits, and subnormal electrophysiological responses. In contrast, alterations in retinal vascular calibers and retinal blood flow were not associated with nadir CD4 counts, but instead with detectable viremia, suggesting a role for (chronic) inflammation in microvascular damage. Although the alterations in visual function are subtle, they can lead to difficulties in activities, such as reading or driving, thereby affecting quality of life. Since HIV has become a chronic disease, its long-term effects with respect to visual function loss become more important, as is recently emphasized by a longitudinal study, reporting that AIDS patients with HIV-NRD have higher risks of developing bilateral visual impairment and even blindness than patients without HIV-NRD. The question remains whether patients with high (>350 cells/μL) nadir CD4 counts and well-suppressed HIV infection on cART remain at risk for HIV-NRD, as this group constitutes a growing part of the aging HIV-infected population.
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Affiliation(s)
- Nazli Demirkaya
- Department of Ophthalmology, Academic Medical Center, Amsterdam, The Netherlands
| | - Ferdinand Wit
- Departments of Global Health and Amsterdam Institute for Global Health and Development, Amsterdam, The Netherlands
- Department of Internal Medicine, Division of Infectious Diseases, Center for Infection and Immunity Amsterdam, Academic Medical Center, Amsterdam, The Netherlands
| | - Reinier Schlingemann
- Department of Ophthalmology, Academic Medical Center, Amsterdam, The Netherlands
- Netherlands Institute for Neuroscience (NIN), Royal Academy of Sciences (KNAW), Amsterdam, The Netherlands
| | - Franciscus Verbraak
- Department of Ophthalmology, Academic Medical Center, Amsterdam, The Netherlands
- Department of Biomedical Engineering and Physics, Academic Medical Center, Amsterdam, The Netherlands
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Retinal Thickening and Photoreceptor Loss in HIV Eyes without Retinitis. PLoS One 2015; 10:e0132996. [PMID: 26244973 PMCID: PMC4526563 DOI: 10.1371/journal.pone.0132996] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Accepted: 06/22/2015] [Indexed: 11/26/2022] Open
Abstract
Purpose To determine the presence of structural changes in HIV retinae (i.e., photoreceptor density and retinal thickness in the macula) compared with age-matched HIV-negative controls. Methods Cohort of patients with known HIV under CART (combination Antiretroviral Therapy) treatment were examined with a flood-illuminated retinal AO camera to assess the cone photoreceptor mosaic and spectral-domain optical coherence tomography (SD-OCT) to assess retinal layers and retinal thickness. Results Twenty-four eyes of 12 patients (n = 6 HIV-positive and 6 HIV-negative) were imaged with the adaptive optics camera. In each of the regions of interest studied (nasal, temporal, superior, inferior), the HIV group had significantly less mean cone photoreceptor density compared with age-matched controls (difference range, 4,308–6,872 cones/mm2). A different subset of forty eyes of 20 patients (n = 10 HIV-positive and 10 HIV-negative) was included in the retinal thickness measurements and retinal layer segmentation with the SD-OCT. We observed significant thickening in HIV positive eyes in the total retinal thickness at the foveal center, and in each of the three horizontal B-scans (through the macular center, superior, and inferior to the fovea). We also noted that the inner retina (combined thickness from ILM through RNFL to GCL layer) was also significantly thickened in all the different locations scanned compared with HIV-negative controls. Conclusion Our present study shows that the cone photoreceptor density is significantly reduced in HIV retinae compared with age-matched controls. HIV retinae also have increased macular retinal thickness that may be caused by inner retinal edema secondary to retinovascular disease in HIV. The interaction of photoreceptors with the aging RPE, as well as possible low-grade ocular inflammation causing diffuse inner retinal edema, may be the key to the progressive vision changes in HIV-positive patients without overt retinitis.
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Moschos MM, Gouliopoulos NS, Kalogeropoulos C. Electrophysiological examination in uveitis: a review of the literature. Clin Ophthalmol 2014; 8:199-214. [PMID: 24453476 PMCID: PMC3894140 DOI: 10.2147/opth.s54838] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Purpose Uveitis is the inflammation of the uveal tract, which usually also affects the retina and vitreous humor. The electrophysiological examination is an objective ocular examination that includes the electroretinogram, visual evoked potentials, the electrooculogram, the multifocal electroretinogram, and multifocal visual evoked potentials. Our aim is to review the literature of the use of the electrophysiological examination in cases of uveitis. Methods We performed a systematic search of the literature of published papers until October 2012 using the PubMed search engine. The key terms that were used were “uveitis”, “electrophysiological examination”, “electroretinogram”, “visual evoked potentials”, “electrooculogram”, “multifocal electroretinogram”, and “multifocal visual evoked potentials” in multiple combinations. To the best of our knowledge, this is the first review concerning the assessment of electrophysiology in uveitis. Results Our search of the literature demonstrated that the electrophysiological examination, mainly by means of electroretinogram, multifocal electroretinogram, and visual evoked potentials, is performed in several cases of uveitis for many purposes, including diagnosis and monitoring of disease progression and treatment efficacy. The electrophysiological examination is more useful in patients with multiple evanescent white dot syndrome, acute posterior multifocal placoid pigment epitheliopathy, birdshot chorioretinopathy, Vogt–Koyanagi–Harada disease, Adamantiades–Behçet disease, ocular syphilis, and Fuchs heterochromic cyclitis. Conclusion This review summarizes the use of the electrophysiological examination in uveitic patients and underlines its value as a useful tool in the objective assessment and the monitoring of the disease.
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Affiliation(s)
- Marilita M Moschos
- Laboratory of Electrophysiology, First Department of Ophthalmology, University of Athens, Athens, Greece
| | - Nikolaos S Gouliopoulos
- Laboratory of Electrophysiology, First Department of Ophthalmology, University of Athens, Athens, Greece
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Armstrong RA. Statistical guidelines for the analysis of data obtained from one or both eyes. Ophthalmic Physiol Opt 2013; 33:7-14. [PMID: 23252852 DOI: 10.1111/opo.12009] [Citation(s) in RCA: 316] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Accepted: 11/14/2012] [Indexed: 11/30/2022]
Abstract
PURPOSE Measurements obtained from the right and left eye of a subject are often correlated whereas many statistical tests assume observations in a sample are independent. Hence, data collected from both eyes cannot be combined without taking this correlation into account. Current practice is reviewed with reference to articles published in three optometry journals, viz., Ophthalmic and Physiological Optics (OPO), Optometry and Vision Science (OVS), Clinical and Experimental Optometry (CEO) during the period 2009-2012. RECENT FINDINGS Of the 230 articles reviewed, 148/230 (64%) obtained data from one eye and 82/230 (36%) from both eyes. Of the 148 one-eye articles, the right eye, left eye, a randomly selected eye, the better eye, the worse or diseased eye, or the dominant eye were all used as selection criteria. Of the 82 two-eye articles, the analysis utilized data from: (1) one eye only rejecting data from the adjacent eye, (2) both eyes separately, (3) both eyes taking into account the correlation between eyes, or (4) both eyes using one eye as a treated or diseased eye, the other acting as a control. In a proportion of studies, data were combined from both eyes without correction. SUMMARY It is suggested that: (1) investigators should consider whether it is advantageous to collect data from both eyes, (2) if one eye is studied and both are eligible, then it should be chosen at random, and (3) two-eye data can be analysed incorporating eyes as a 'within subjects' factor.
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Affiliation(s)
- Richard A Armstrong
- Ophthalmic Research Group, School of Life and Health Sciences, School of Optometry, Aston University, Birmingham, UK.
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