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1.
Ophthalmol Sci ; 4(6): 100529, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39280348

RESUMEN

Purpose: To use artificial intelligence to identify imaging biomarkers for anatomic and functional progression of lamellar macular hole (LMH) and elaborate a deep learning (DL) model based on OCT and OCT angiography (OCTA) for prediction of visual acuity (VA) loss in untreated LMHs. Design: Multicentric retrospective observational study. Participants: Patients aged >18 years diagnosed with idiopathic LMHs with availability of good quality OCT and OCTA acquisitions at baseline and a follow-up >2 years were recruited. Methods: A DL model based on soft voting of 2 separate models (OCT and OCTA-based respectively) was trained for identification of cases with VA loss >5 ETDRS letters (attributable to LMH progression only) during a 2-year follow-up. Biomarkers of anatomic and functional progression of LMH were evaluated with regression analysis, feature learning (support vector machine [SVM] model), and visualization maps. Main Outcome Measures: Ellipsoid zone (EZ) damage, volumetric tissue loss (TL), vitreopapillary adhesion (VPA), epiretinal proliferation, central macular thickness (CMT), parafoveal vessel density (VD) and vessel length density (VLD) of retinal capillary plexuses, choriocapillaris (CC), and flow deficit density (FDD). Results: Functionally progressing LMHs (VA-PROG group, 41/139 eyes [29.5%]) showed higher prevalence of EZ damage, higher volumetric TL, higher prevalence of VPA, lower superficial capillary plexus (SCP), VD and VLD, and higher CC FDD compared with functionally stable LMHs (VA-STABLE group, 98/139 eyes [70.5%]). The DL and SVM models showed 92.5% and 90.5% accuracy, respectively. The best-performing features in the SVM were EZ damage, TL, CC FDD, and parafoveal SCP VD. Epiretinal proliferation and lower CMT were risk factors for anatomic progression only. Conclusions: Deep learning can accurately predict functional progression of untreated LMHs over 2 years. The use of AI might improve our understanding of the natural course of retinal diseases. The integrity of CC and SCP might play an important role in the progression of LMHs. Financial Disclosures: The authors have no proprietary or commercial interest in any materials discussed in this article.

2.
Ophthalmol Sci ; 4(6): 100476, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39149709

RESUMEN

Purpose: To evaluate the safety of subretinal injection of cord blood platelet-rich plasma (CB-PRP) and its possible effect in eyes affected by geographic atrophy (GA) associated with dry age-related macular degeneration (d-AMD). Design: Interventional, open-label study started in January 2021 with follow-up at 12 months (the Si.Cord Study). This study was a single-center, nonrandomized, sequential-assigned clinical trial conducted in Rome, Italy, at Fondazione Policlinico Universitario Agostino Gemelli IRCCS (ClinicalTrials.gov NCT04636853). Participants: Thirteen patients (26 eyes) with bilateral d-AMD-related GA were enrolled. One eye from each patient (with more advanced GA) underwent CB-PRP treatment, and the fellow eye was considered the control. All patients participated in follow-up at 12 months. Intervention: All 13 eyes received 23-gauge (G) vitrectomy and subretinal injection of CB-PRP using a 41-gauge needle. Main Outcomes and Measures: Best-corrected visual acuity (BCVA) with ETDRS letters, central macular thickness using OCT, and atrophic area measured on en face OCT images were assessed at baseline, 1, 3, 6, and 12 months. Results: The BCVA in the treated group was 34.46 ± 20.8 ETDRS at baseline, 40.84 ± 20.52 at 1 month, 40.07 ± 20.34 at 3 months, 39.38 ± 19.84 at 6 months, and 35.84 ± 18.38 at 12 months. In the untreated group, the BCVA was 53 ± 21.1 ETDRS letters at baseline, 51.54 ± 20.99 at 1 month, 46.62 ± 19.47 at 3 months, 46.85 ± 18.58 at 6 months, and 43.92 ± 17.97 at 12 months (2-way analysis of variance: interaction of treatment by eye or time, P = 0.084). Central macular thickness did not show a significant intereye difference at 12 months (P = 0.97). The atrophic geographic areas tended to increase in both treated and fellow eyes at 12 months (P < 0.0001). No inflammatory reaction, endophthalmitis, retinal detachment, uveitis, or other complications due to the subretinal injection of CB-PRP were observed during the follow-up. Conclusions: Subretinal injection of CB-PRP could be safely used for d-AMD in its GA form. Despite its safety, a larger cohort of patients, and probably a new way of administration, will be needed to understand whether the CB-PRP could have a role in the GA treatment. Financial Disclosures: Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article.

3.
Artículo en Inglés | MEDLINE | ID: mdl-39106415

RESUMEN

PURPOSE: To report a case of a patient with perifoveal exudative vascular anomalous complex (PEVAC) and to analyze morphological and vascular changes by OCT and OCTA before and after treatment. MATERIALS AND METHODS: In this case we reported a case which received multiple treatment for unresponsive effect to Repeated Aflibercept intravitreal injections, subthreshold micropulse laser therapy (SMPL) duty cycle 5%. At last the focal fully dose yellow laser was performed. RESULTS: A 57-year-old male patient presented with best corrected visual acuity (BCVA) of 20/50 in his right eye (RE) The fundoscopic evaluation, structural optical coherence tomography (OCT) and OCT angiography (OCTA) deposed for a diagnosis of PEVAC. The patient underwent three Aflibercept intravitreal injections in the RE. Since no changes were detected, we opted for multiple sessions of yellow subthreshold micropulse laser therapy (SMPL) duty cycle 5%, however no signs of regression were registered. Only after a fully dose yellow laser, signs of edema regression were observed. Stuctural OCT B-scan showed complete restitutio of retinal profile, in absence of any intraretinal or subretinal fluid and PEVAC lesion, while the OCTA showed a slight flow deficit at the previous lesion site. CONCLUSIONS: and Importance: The PEVAC treatment is still unknown. In our experience, we reported a case of multiple treatments for unresponsive effect to: Aflibercept intravitreal injections, subthreshold micropulse laser therapy (SMPL) duty cycle 5%. At list the focal fully dose yellow laser was the only effective in our patient. We proposed our management to share the heterogeneous response at PEVAC entity.

4.
Transl Vis Sci Technol ; 13(8): 44, 2024 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-39212608

RESUMEN

Purpose: To examine whether the extension of retinal pigment epithelium (RPE) and outer retinal atrophy (RORA) and various other morphofunctional parameters correlate with the genetic assessment and severity of retinitis pigmentosa (RP). Methods: Thirty-eight patients (76 eyes) with RP were prospectively enrolled and underwent full ophthalmic examination, including visual field testing, full-field electroretinography (ERG), and optical coherence tomography angiography. The severity of the disease was calculated using the RP stage scoring system, and the area of RORA was assessed using the automatically calculated area of sub-RPE illumination. Blood or saliva samples were collected from subjects, and DNA extraction was performed to evaluate genetic mutations and nucleotide and amino acid variations. Results: There was a statistically significant correlation between the extent of RORA and patient age, best-corrected visual acuity, ellipsoid zone extension, and disease severity in both eyes (each, P < 0.05). In contrast, RORA did not correlate with either the visual field or the ERG amplitude. Cumulative score and grade severity were both significantly correlated with superficial and deep capillary plexus density (both, P < 0.001) in both eyes. Evaluating RORA, we found genes with an overall less severe phenotype, such as EYS, PCDH15, and PRPF31, and those with a worse phenotype, such as RPGR. Conclusions: The correlation of RORA with structural, functional, and genetic assessment in RP disease leads us to consider RORA as a potential biomarker for prediction of disease stage. Multicenter studies are needed to confirm our findings. Translational Relevance: The morphofunctional and genetic correlations suggest a role for RORA in RP diagnosis and follow-up.


Asunto(s)
Electrorretinografía , Epitelio Pigmentado de la Retina , Retinitis Pigmentosa , Tomografía de Coherencia Óptica , Agudeza Visual , Humanos , Retinitis Pigmentosa/genética , Retinitis Pigmentosa/patología , Retinitis Pigmentosa/fisiopatología , Retinitis Pigmentosa/diagnóstico por imagen , Retinitis Pigmentosa/diagnóstico , Femenino , Masculino , Persona de Mediana Edad , Adulto , Estudios Prospectivos , Epitelio Pigmentado de la Retina/patología , Epitelio Pigmentado de la Retina/diagnóstico por imagen , Adulto Joven , Anciano , Campos Visuales , Angiografía con Fluoresceína , Mutación , Proteínas del Ojo/genética , Índice de Severidad de la Enfermedad , Pruebas del Campo Visual
5.
Arch Gynecol Obstet ; 310(4): 2247-2252, 2024 10.
Artículo en Inglés | MEDLINE | ID: mdl-38963584

RESUMEN

PURPOSE: Functional hypothalamic amenorrhea (FHA) is characterized by an estrogen deficiency which in turn can cause vascular dysfunction. The aim of this study is to evaluate any changes in the chorio-retinal circulation in patients affected by FHA. 24 patients with FHA and 24 age-matched controls underwent a gynecological evaluation and an OCT angiography (OCTA) to study chorio-retinal vascularization. RESULTS: OCTA in FHA patients showed an increase in vessel density in the choriocapillaris (CC) layer (both in the fovea area, at 5% p value = 0.037 and in the whole area, at 5% p value = 0.028) and an increase in vascular density in the deep fovea (DVP) (at 10% p value = 0.096) in the whole district compared to controls. Simple linear regressions show a significant negative association between CC vessel density and insulin (p = 0.0002) and glucose values (p = 0.0335) for the fovea district and a negative association between DVP vessel density and endometrial thickness (at 10%, p value: 0.095) in the whole district. CONCLUSION: Our study shows that CC vessel density is increased in women affected by FHA. This could represent a compensation effort to supply the vascular dysfunction caused by estrogen deficiency. We also found an increasing trend in vascular density in DVP associated with the decrease of endometrial thickness, an indirect sign of estrogenization. Considering that these changes occur in absence of visual defects, they could be used as a biomarker to estimate hypoestrogenism-induced microcirculation changes before clinical appearance.


Asunto(s)
Amenorrea , Coroides , Vasos Retinianos , Humanos , Femenino , Estudios Transversales , Adulto , Amenorrea/fisiopatología , Amenorrea/etiología , Vasos Retinianos/diagnóstico por imagen , Coroides/irrigación sanguínea , Coroides/diagnóstico por imagen , Tomografía de Coherencia Óptica , Adulto Joven , Estudios de Casos y Controles , Estrógenos/deficiencia , Estrógenos/sangre , Enfermedades Hipotalámicas/fisiopatología , Enfermedades Hipotalámicas/complicaciones , Densidad Microvascular
6.
Surv Ophthalmol ; 69(6): 893-904, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38942124

RESUMEN

Diabetic macular edema (DME), defined as retinal thickening near, or involving the fovea caused by fluid accumulation in the retina, can lead to vision impairment and blindness in patients with diabetes. Current knowledge of retina anatomy and function and DME pathophysiology has taken great advantage of the availability of several techniques for visualizing the retina. Combining these techniques in a multimodal imaging approach to DME is recommended to improve diagnosis and to guide treatment decisions. We review the recent literature about the following retinal imaging technologies: optical coherence tomography (OCT), OCT angiography (OCTA), wide-field and ultrawide-field techniques applied to fundus photography, fluorescein angiography, and OCTA. The emphasis will be on characteristic DME features identified by these imaging technologies and their potential or established role as diagnostic, prognostic, or predictive biomarkers. The role of artificial intelligence in the assessment and interpretation of retina images is also discussed.


Asunto(s)
Biomarcadores , Retinopatía Diabética , Angiografía con Fluoresceína , Edema Macular , Imagen Multimodal , Tomografía de Coherencia Óptica , Humanos , Edema Macular/diagnóstico , Edema Macular/diagnóstico por imagen , Edema Macular/etiología , Retinopatía Diabética/diagnóstico , Imagen Multimodal/métodos , Tomografía de Coherencia Óptica/métodos , Angiografía con Fluoresceína/métodos , Biomarcadores/metabolismo
7.
Am J Ophthalmol ; 267: 41-49, 2024 Jun 18.
Artículo en Inglés | MEDLINE | ID: mdl-38901720

RESUMEN

PURPOSE: To evaluate ophthalmological, neurological, radiological, and laboratory data in patients with multiple sclerosis (MS) and to identify new ophthalmological factors that could be helpful as biomarkers of the disease, potentially leading to an earlier prediction of disease course and disability progression. DESIGN: Retrospective, cross-sectional-study. METHODS: Best-corrected visual acuity (BCVA), ophthalmological biomicroscopy of the anterior segment and fundus, structural optical coherence tomography (OCT) with retinal nerve fiber layer (RNFL) and ganglion cell complex (GCC), and OCT angiography (OCTA) with vascular density (VD) were performed. The following clinical and neuro-radiological features were assessed: MS phenotype, disease duration, clinical severity, type of treatment, and T2-weighted lesion and T1-weighted Gd+ enhancing lesion number on the brain and spinal cord MRI. RESULTS: One hundred and six patients (212 eyes) were analyzed. Sixty-six of them (62.2%) had MS and 40 (37.8%) were matched healthy controls (HCs). patients with MS showed lower RNFL, GCC, and VD in the radial peripapillary capillary plexus than controls in both eyes (P < .05). By Performing a logistic regression with a distinct MS outcome for both eyes, we were able to demonstrate that the value that was most predictive of MS was the average GCC thickness (P = .009). Regression analysis demonstrated that patients with a higher T2-weighted lesions showed a lower RNFL thickness value and reduced GCC and VD values than those with a low lesion load (P < .01 and P < .05, respectively). Similarly, relapsing MS patients showed lower RNFL values (P < .05). CONCLUSIONS: Several OCT and OCTA-optic nerve parameters could be useful prognostic biomarkers for the MS disease course in clinical practice. However, it is necessary to do additional research with larger sample sizes in order to validate these findings.

8.
Br J Ophthalmol ; 2024 May 06.
Artículo en Inglés | MEDLINE | ID: mdl-38719346

RESUMEN

BACKGROUND: To evaluate, in patients undergoing macula-off rhegmatogenous retinal detachment surgery (RRD), the correlation between preoperative optical coherence tomography (OCT) morphological features and postoperative visual acuity. METHODS: Retrospective interventional non-randomised clinical trial on 89 eyes of 89 patients undergoing pars plana vitrectomy for macula-off primary RRD at Policlinico Universitario Agostino Gemelli from 2020 to 2023. Preoperative 6×6 mm OCT B scans with Nidek Mirante (Nidek, Gamagori, Japan) were performed, collecting the following features: foveal involvement (fovea-on vs fovea-off), subretinal hyper-reflective points (HRPs), outer retinal corrugations (ORCs) and intraretinal cystic spaces (ICS) in the outer nuclear layer. The patients were followed in a 6-month follow-up to evaluate best-corrected visual acuity (BCVA) outcomes. RESULTS: Preoperative mean BCVA was 0.15±0.22 and improved to 0.29±0.3 decimals at 6 months (p<0.001). The presence of subretinal HRPs showed a significant negative impact on BCVA improvement in the univariate regression analysis (r=-0.264, p=0.024), as well as the presence of foveal detachment (r=-0.355, p=0.012). The other OCT features did not show a significant correlation with BCVA improvement: ORCs (r=0.072, p=0.257) and ICS (r=-0.020, p=0.734). In the multivariate regression analysis, the negative impact of foveal detachment was confirmed (r=-0.199, p=0.05) while the statistical significance of subretinal HRPs was lost (r=-0.135, p=0.105). CONCLUSIONS: The negative impact of foveal involvement in a macula-off RRD was confirmed. Moreover, the presence of subretinal HRPs, as a possible indirect marker of inflammatory response extent, may act as a negative predictor for postoperative visual recover. TRIAL REGISTRATION NUMBER: NCT05747144.

9.
BMC Med Genomics ; 17(1): 100, 2024 Apr 22.
Artículo en Inglés | MEDLINE | ID: mdl-38649918

RESUMEN

BACKGROUND: This report presents a clinical case of syndromic rod-cone dystrophy due to a splice site variant in the ARL2BP gene causing situs inversus, asthenozoospermia, unilateral renal agenesis and microcysts. The presence of renal agenesis and cryptorchidism expands the clinical manifestations due to ARL2BP variants. The detailed, long-term follow-up contributes valuable insights into disease progression, aiding clinical diagnosis and patient management. CASE PRESENTATION: The male patient complained of photophobia as the first symptom when he was 20 years old followed by nyctalopia, loss of central visual acuity and peripheral visual field ten years later. Genetic analysis identified a likely pathogenic homozygous variant (c.294-1G > C) involving the splicing acceptor site of intron 4. Reported symptoms together with full-field stimulus threshold testing, electroretinogram and advanced multimodal imaging allowed us to recognize the typical characteristics of a mixed retinal dystrophy. Despite the end-stage retinal disease, this patient still retained a useful residual vision at 63 years and had a slow disease progression during the last 5 years of evaluation. DISCUSSION AND CONCLUSIONS: Our findings underscore the variable clinical presentation of ARL2BP variants, emphasizing the importance of a nuanced approach in diagnosing and managing patients. The presence of renal cysts warrants consideration of a differential diagnosis, particularly with Senior-Loken (SLS), Bardet-Biedl (BBS) and Joubert syndromes (JS) but also with Short Rib Thoracic Dysplasia 9, highlighting the need for careful phenotypic evaluation in these cases.


Asunto(s)
Homocigoto , Enfermedades Renales , Riñón , Situs Inversus , Humanos , Masculino , Distrofias de Conos y Bastones/genética , Anomalías Congénitas/genética , Riñón/anomalías , Riñón/diagnóstico por imagen , Enfermedades Renales/genética , Enfermedades Renales/congénito , Sitios de Empalme de ARN/genética , Situs Inversus/genética , Situs Inversus/complicaciones , Síndrome , Persona de Mediana Edad
10.
Ophthalmic Res ; 67(1): 282-291, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38621369

RESUMEN

INTRODUCTION: The purpose of this study was to investigate long-term outcomes of intravitreal injections (IVI) of antivascular endothelial growth factor (VEGF) in neovascular age-related macular degeneration (nAMD) with type 3 macular neovascularization (MNV). METHODS: This retrospective study included 19 eyes of 17 patients with nAMD and type 3 MNV treated with anti-VEGF IVI with a loading dose and a PRN regimen. Best corrected visual acuity (BCVA), central macular thickness (CMT), presence of macular intraretinal fluid (IRF) and subretinal fluid (SRF), flow area (FA), subfoveal choroidal thickness (CT), and macular atrophy (MA) were assessed at baseline (T0) and during follow-up (T1, post-loading phase; T2, 1 year; T3, 2 years; T4 >2 years). The correlations between MA at the last follow-up and standard deviation (SD) values of CMT and CT during follow-up were assessed. The influence of the number of injections on the change in MA over time was also analyzed. MA differences at T4 were assessed for pseudodrusen presence. RESULTS: BCVA improved significantly during follow-up (p = 0.013) particularly increasing from baseline to post-loading phase and then did not modify significantly thereafter. CMT significantly reduced from T0 to T1 and remained stable during follow-up (p = <0.001). MNV flow area showed a trend toward an increase in the post-loading phase that was not statistically significant (p = 0.082) and CT decreased significantly during follow-up (p < 0.001). MA changed significantly during follow-up (p < 0.001) with a significant increase from T0 to T3 and from T0 to T4 (p < 0.010). A Cochran-Armitage test for trend showed a significant reduction (p = 0.001) of macular IRF and SRF during follow-up. MA at T4 showed a significant positive correlation with SD (standard deviation) values of CMT (p = 0.040) and CT (p = 0.020). Indeed, the number of injections did not influence the change over time of MA (p = 0.709). MA at T4 was not statistically significantly different between patients with pseudodrusen at baseline (p = 0.497). CONCLUSIONS: Intravitreal anti-VEGF injections with PRN regimen in MNV type 3 showed functional and anatomical benefits. Variations of retinal thickness and choroidal thickness during treatment were related to MA modification over time.


Asunto(s)
Inhibidores de la Angiogénesis , Angiografía con Fluoresceína , Inyecciones Intravítreas , Ranibizumab , Tomografía de Coherencia Óptica , Factor A de Crecimiento Endotelial Vascular , Agudeza Visual , Humanos , Estudios Retrospectivos , Masculino , Femenino , Inhibidores de la Angiogénesis/administración & dosificación , Anciano , Factor A de Crecimiento Endotelial Vascular/antagonistas & inhibidores , Tomografía de Coherencia Óptica/métodos , Estudios de Seguimiento , Anciano de 80 o más Años , Ranibizumab/administración & dosificación , Angiografía con Fluoresceína/métodos , Mácula Lútea/patología , Bevacizumab/administración & dosificación , Resultado del Tratamiento , Degeneración Macular Húmeda/tratamiento farmacológico , Degeneración Macular Húmeda/diagnóstico , Degeneración Macular Húmeda/fisiopatología , Fondo de Ojo , Factores de Tiempo , Persona de Mediana Edad
11.
Pharmaceutics ; 16(3)2024 Feb 23.
Artículo en Inglés | MEDLINE | ID: mdl-38543208

RESUMEN

The ranibizumab (RBZ) port delivery system (PDS) is a device designed to continuously deliver RBZ in the vitreous chamber for the treatment of neovascular age-related macular degeneration (nAMD). It is implanted during a surgical procedure and can provide sustained release of the medication for several months. This review, updated to January 2024, focuses on past clinical studies as well as current and forthcoming trials looking into a PDS with RBZ. In the phase 2 LADDER trial, the mean time to first refill of a PDS with RBZ 100 mg/mL was 15.8 months, with the pharmacokinetic (PK) profile showing a sustained concentration of RBZ in the blood and aqueous humor. More recently, a PDS with RBZ (100 mg/mL) refilled every 24 weeks was shown to be non-inferior to a monthly intravitreal injection (IVI) with RBZ (0.5 mg) over 40 and 92 weeks in the phase 3 ARCHWAY trial. The refill every 24 weeks allowed for a RBZ vitreous exposure within the concentration range of monthly intravitreal injections (IVIs), and the expected half-life (106 days) was comparable with the in vitro results. Nonetheless, vitreous hemorrhage and endophthalmitis were more common side effects in PDS patients. In conclusion, a PDS continuously delivering RBZ has a clinical effectiveness level comparable with IVI treatment. However, a greater frequency of unfavorable occurrences highlights the need for procedure optimization for a wider adoption. Ongoing trials and possible future approaches need to be addressed.

12.
Graefes Arch Clin Exp Ophthalmol ; 262(7): 2057-2065, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38407592

RESUMEN

PURPOSE: The aim of our study was to evaluate changes in the retinal and choriocapillaris circulations in patients with hypothalamic amenorrhea. METHODS: Prospective, cross-sectional observational study on 25 patients (50 eyes) diagnosed with hypothalamic amenorrhea and 25 age-matched healthy women. Optical coherence tomography angiography (OCTA) was used to evaluate the vessel density (VD) of superficial capillary plexus (SCP), deep capillary plexus (DCP), and choriocapillaris VD layers in whole 6.4 × 6.4-mm image and in fovea grid-based image. In patients' group, systemic parameters were collected: body mass index (BMI), endometrial rhyme thickness, follicle stimulating hormone (FSH), luteinizing hormone (LH), prolactin, insulin, and cortisol. RESULTS: SCP and DCP did not show any statistical difference when comparing patients and controls (all p > 0.05). Differently, choriocapillaris VD in the whole region showed a non-significant tendency toward higher values in the patients group in both eyes (p = 0.038 for right eye [RE], p = 0.044 for left eye [LE]). Foveal choriocapillaris VD was higher in hypothalamic amenorrhea women vs. healthy controls (66.0 ± 2.4 vs. 63.7 ± 6.6%, p = 0.136 for RE; 65.0 ± 2.4 vs. 61.6 ± 7.0%, p = 0.005 for LE). Focusing on correlation with systemic parameters, SCP and DCP foveal density had a medium/high effect size with endometrial rhyme, along with DCP in the fovea area vs. cortisol and SCP in the whole area vs. FSH. CONCLUSION: When comparing hypothalamic amenorrhea patients to healthy subjects, OCTA detected changes in the choriocapillaris layer, showing increased VD in the early stage of the systemic pathology, suggesting that microvascular "compaction" could be a first phase of hypoestrogenism adaptation.


Asunto(s)
Amenorrea , Biomarcadores , Coroides , Angiografía con Fluoresceína , Vasos Retinianos , Tomografía de Coherencia Óptica , Humanos , Femenino , Tomografía de Coherencia Óptica/métodos , Estudios Transversales , Estudios Prospectivos , Amenorrea/diagnóstico , Amenorrea/fisiopatología , Amenorrea/etiología , Amenorrea/sangre , Coroides/irrigación sanguínea , Angiografía con Fluoresceína/métodos , Adulto , Adulto Joven , Biomarcadores/sangre , Fondo de Ojo , Enfermedades Hipotalámicas/diagnóstico , Enfermedades Hipotalámicas/fisiopatología , Enfermedades Hipotalámicas/complicaciones , Capilares , Adolescente
15.
Eur J Ophthalmol ; 34(2): 549-557, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-37401268

RESUMEN

PURPOSE: To analyze differences in refractive outcome Δ (difference between postoperative and expected refractive error) and in anterior segment changes between cataract surgery patients and combined phacovitrectomy patients. We also aimed to provide a corrective formula allowing to minimise the refractive outcome Δ in combined surgery patients. METHODS: Candidates for phacoemulsification and combined phacovitrectomy (respectively PHACO and COMBINED groups) were prospectively enrolled in two specialised centres. Patients underwent best corrected visual acuity (BCVA) assessment, ultra-high speed anterior segment optical coherence tomography (OCT), gonioscopy, retinal OCT, slit lamp examination and biometry at baseline, 6 weeks postoperatively and 3 months postoperatively. RESULTS: No differences in refractive Δ, refractive error and anterior segment parameters were noted between PHACO and COMBINED group (109 and 110 patients respectively) at 6 weeks. At 3 months, COMBINED group showed a spherical equivalent of -0.29 ± 0.10 D versus -0.03 ± 0.15 D in PHACO group (p = 0.023). COMBINED group showed a significantly higher Crystalline Lens Rise (CLR), angle-to-angle (ATA) and anterior chamber width (ACW) and a significantly lower anterior chamber depth (ACD) and refractive Δ with all 4 considered formulas at 3 months. For IOL power lower than 15, a hyperopic shift was observed instead. CONCLUSIONS: Anterior segment OCT suggests anterior displacement of the effective lens position in patients undergoing phacovitrectomy. A corrective formula can be applied to IOL power calculation to minimize undesired refractive error.


Asunto(s)
Extracción de Catarata , Lentes Intraoculares , Facoemulsificación , Errores de Refracción , Humanos , Implantación de Lentes Intraoculares , Refracción Ocular , Extracción de Catarata/métodos , Facoemulsificación/métodos , Biometría/métodos , Estudios Retrospectivos
16.
Cornea ; 43(2): 178-183, 2024 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-37126644

RESUMEN

PURPOSE: Radial keratotomies (RKs) are responsible for corneal irregularities resulting in biometric errors and lower best-corrected visual acuity (BCVA) due to lower-order and higher-order optical aberrations. The aim of the study was to compare performances of new and old generation formulas in a population of RK patients. METHODS: RK patients who underwent phacoemulsification with intraocular lens (IOL) implantation were retrospectively recruited. Inclusion criteria were availability of preoperative and 6-month postoperative BCVA assessment, topography, and tomography. Documented refraction instability, corneal ectasia, and previous ocular surgery except for RK were exclusion criteria. Mean prediction error (ME), mean absolute prediction error (MAE), and incidence of MAE > 0.25D were calculated for SRK-T, Barrett True K, EVO 2.0, Kane, and PEARL-DGS. RESULTS: Twenty-seven patients with a mean baseline BCVA of 0.32 ± 0.18 logMAR and a mean corneal root mean square (RMS) value of 1.59 ± 0.91 µm were included. EVO 2.0, Kane, and PEARL-DGS showed a significantly lower MAE and lower ME compared with all other formulas ( P < 0.001 and P < 0.001) and a significant lower incidence of MAE >0.25D ( P < 0.001). Significant differences were still detected when using 3-mm mean keratometry for IOL calculation. CONCLUSIONS: PEARL-DGS, Kane, and EVO 2.0 formulas show superior accuracy in IOL power calculation compared with SRK-T and Barrett True K in RK patients, with no significant differences between the 3.


Asunto(s)
Queratotomía Radial , Lentes Intraoculares , Facoemulsificación , Humanos , Agudeza Visual , Estudios Retrospectivos , Refracción Ocular , Facoemulsificación/métodos , Biometría/métodos , Óptica y Fotónica
17.
Retin Cases Brief Rep ; 18(1): 18-23, 2024 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-35944558

RESUMEN

PURPOSE: This case report describes an innovative procedure for addressing retinal detachment in patients with morning glory syndrome. METHODS: An 18-year-old woman with unilateral morning glory syndrome complicated by macula-off retinal detachment without any visible peripheral retinal breaks underwent three corrective surgeries. In the first surgery, a 25-gauge pars plana vitrectomy with a 3-mm human amniotic membrane patch positioned on the optic disc and gas endotamponade was performed. When the gas reabsorbed, inferior retinal detachment recurred, and a second vitrectomy with silicone oil endotamponade was conducted. At three months, the retina was still attached under the silicone oil, so the oil was removed. At the second follow-up, retinal detachment had recurred, and a third vitrectomy with a larger amniotic patch and silicone oil endotamponade was performed. RESULTS: Three months following the last surgery, the subretinal fluid had totally reabsorbed, and the retina was completely attached. The best-corrected visual acuity was 20/100. CONCLUSION: To the best of our knowledge, the first description of a human amniotic patch associated with vitrectomy in morning glory syndrome complicated with retinal detachment is described. Using human amniotic membranes, positioned onto the optic nerve, and silicone oil endotamponade could be useful for morning glory syndrome complicated by retinal detachment.


Asunto(s)
Desprendimiento de Retina , Femenino , Humanos , Adolescente , Desprendimiento de Retina/diagnóstico , Desprendimiento de Retina/etiología , Desprendimiento de Retina/cirugía , Amnios , Aceites de Silicona , Agudeza Visual , Retina , Vitrectomía/métodos , Síndrome , Recurrencia , Estudios Retrospectivos
18.
Eur J Ophthalmol ; : 11206721231212545, 2023 Nov 03.
Artículo en Inglés | MEDLINE | ID: mdl-37920982

RESUMEN

PURPOSE: To evaluate three months follow-up of SING IMT implant in patients affected by late-stage AMD. DESIGN: Prospective cohort study. SUBJECTS: In a total of 80 eyes of 40 patients who underwent the enrollment tests, 11 patients' eyes affected by late-stage AMD matched the inclusion criteria and underwent SING IMT implant from February to June 2022. METHODS: Before surgery, each patient underwent the enrollment examination to verify inclusion and exclusion criteria. MAIN OUTCOME MEASURES: BCVA for distance and for near, IOP, ACD and ECD were evaluated at 1 and 3 months follow up. Also quality of life in doing the activities of daily life was evaluated. RESULTS: BCVA for distance and for near improved from baseline to 3 months follow up (23.91 ± 9.418 ETDRS letters and 59.09 ± 11.58 ETDRS letters respectively (p < 0.001). An endothelial cell loss was shown (p < 0.001), with a rate of cell density reduction around 8.3% (baseline vs 3 months). CONCLUSIONS: SING IMT could be a valid surgical device to improve patients' sight and quality of life which have been deteriorated by late-stage macular degeneration. Further studies with more patients and longer follow up are needed to confirm our results.

19.
Am J Ophthalmol Case Rep ; 32: 101949, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37942051

RESUMEN

Purpose: To evaluate characteristic imaging findings and functional outcomes of Cilioretinal Artery Occlusion (CLRAO) associated with giant cell arteritis (GCA). Observations: We report the case of a 70-year-old woman presenting with sudden vision loss caused by a GCA-associated-CLRAO in her left eye (LE). A thorough ophthalmologic examination together with optical coherence tomography (OCT), OCT-Angiography (OCT-A), fluorescein angiography and fundus autofluorescence were performed. At presentation, the best corrected visual acuity in the LE was 20/200 and funduscopic examination revealed optic disc edema associated with retinal whitening along the area perfused by the CLRA. After 1 month, OCT and OCT-A revealed an improvement of the retinal edema and a partial reduction of the non-perfused areas in the superficial and deep capillary plexuses, as well as in the outer retina and in the choriocapillaris. Fluorescein angiography showed a reduction in the perfusion of the affected area, a delayed perfusion of the temporal sector of the optic disc, as well as areas of choroidal hypoperfusion in the peripheral temporal retina. The patient's visual acuity did not change during the follow up. Conclusion and importance: Despite a partial recanalization of the occluded vasculature being possible after GCA-associated-CLRAO, the patient's visual prognosis remains poor.

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