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1.
Int Ophthalmol ; 43(3): 989-995, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36053475

RESUMEN

BACKGROUND: To demonstrate the safety and efficacy of the intracameral use of tropicamide 0.02%/phenylephrine 0.31%/lidocaine 1% in pediatric cataract surgery, a combination widely used in adult patients but still off-label in children. METHODS: Design: two-center, prospective, observational study. SETTING: San Giuseppe Hospital, Milan and Meyer Children's Hospital, Florence. STUDY POPULATION: children from 0 to 4 years of age undergoing cataract surgery with or without intraocular IOL implantation, in the absence of clinically significant systemic conditions, history of ocular surgery, concurrent ocular medication, hypersensitivity to any of the substances and post-traumatic cataracts. During the surgery, patients received the combination drug after the primary access to the anterior chamber. Efficacy was evaluated by achieving an adequate mydriasis in order to perform capsulorhexis, while safety was assessed by recording vital signs (heart rate, blood pressure, respiratory rate, temperature) pre- and post-administration of the substance. RESULTS: This study included 53 surgical procedures of 36 patients: 41 eyes were left aphakic, while 12 eyes received primary IOL implantation. The pupil size was adequate to safely perform capsulorhexis in 52 procedures of 53. The difference in pupil enlargement was significant (6.0 ± 1.14 mm, P = < 0.001). There were no notable changes in vital parameters. CONCLUSIONS: The administration of intracameral tropicamide 0.02%/phenylephrine 0.31%/lidocaine 1% in pediatric cataract surgery is effective for obtaining an adequate mydriasis without any vital parameters changes throughout the procedure.


Asunto(s)
Catarata , Midriasis , Oftalmología , Facoemulsificación , Adulto , Humanos , Niño , Tropicamida/farmacología , Midriáticos , Estudios Prospectivos , Fenilefrina , Pupila/fisiología , Lidocaína/efectos adversos , Facoemulsificación/métodos
2.
Retina ; 40(9): 1765-1773, 2020 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-31584561

RESUMEN

PURPOSE: To describe patients with intermediate uveitis complicated by vasoproliferative tumors (VPTs). METHODS: Data were collected at seven Uveitis/Ocular Oncology centers on demographic, ophthalmic findings at baseline and at follow-up, and on imaging. The therapeutic intervention, final visual acuity, and duration of follow-up were recorded. RESULTS: A total of 36 eyes from 34 patients (12 men, 22 women; mean age 35.3 ± 14.2 years) were included in this study. Visual acuity at presentation ranged from 20/40 to counting fingers. At the time of VPT diagnosis, intermediate uveitis was active in all eyes. The mean VPT thickness was 3.06 ± 0.86 mm. Local treatment to the VPT was provide in 22 eyes (61.1%) and no local treatment to the VPT in 14 eyes (38.9%). After the VPT was detected, systemic or local treatment for the inflammation was initiated and on follow-up FAs 94.4% of the eyes showed resolution of the vascular leakage. During follow-up of 35.8 months, the 22 VPTs treated locally had a reduction in the tumor thickness to 1.25 mm, whereas the 14 VPTs untreated remained stable (final mean tumor thickness 2.65 mm). CONCLUSION: The presence of active intermediate uveitis accompanied by VPTs suggests the need for an aggressive uveitis treatment.


Asunto(s)
Neoplasias de Tejido Vascular/etiología , Neoplasias de la Retina/etiología , Vasos Retinianos/patología , Uveítis Intermedia/complicaciones , Adolescente , Adulto , Niño , Femenino , Angiografía con Fluoresceína , Humanos , Terapia por Láser , Masculino , Persona de Mediana Edad , Neoplasias de Tejido Vascular/diagnóstico , Neoplasias de Tejido Vascular/cirugía , Neoplasias de la Retina/diagnóstico , Neoplasias de la Retina/cirugía , Estudios Retrospectivos , Tomografía de Coherencia Óptica , Ultrasonografía , Agudeza Visual/fisiología , Vitrectomía , Adulto Joven
3.
Int Ophthalmol ; 40(1): 19-29, 2020 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-31313069

RESUMEN

AIM: To compare intraocular pressure (IOP) measurements obtained with the Perkins applanation tonometer and Icare PRO (ICP) rebound tonometer in anesthetized aphakic or strabismus children. Furthermore, intra-operator correlation and inter-operator correlation have been evaluated, along with the effects of central corneal thickness (CCT) on IOP measurements. METHODS: Seventy children undergoing examination under anesthesia with sevoflurane for aphakic patients and for surgery for strabismus were included. IOP have been measured twice immediately after anesthesia induction with both Perkins applanation tonometer (PAT) and ICP in one eye and by two different operators with both devices in the fellow eye. Furthermore, CCT was measured with ultrasound pachymetry Pacline (Optikon). Agreement between the device measurements has been evaluated using Bland-Altman analyses. Repeatability and reproducibility of the device have been evaluated with intraclass correlation coefficient (ICC) with a value > 0.75 associated with excellent reliability. The relationship between IOP and CCT has been evaluated with Spearman's correlation coefficient r and determination coefficient r2. RESULTS: Mean difference in IOP measurements between ICP and PAT was 1.97 mmHg ± 1.23 mmHg (p < 0.05). This difference appeared to be higher in aphakic patients (mean difference 2.15 ± 1.35) than in patients undergoing strabismus surgery (mean difference 1.83 mmHg ± 1.12). Intraclass correlation coefficient (ICC) is used to evaluate repeatability and reproducibility, which are both high for PAT (repeatability 0.96, reproducibility 0.76) compared with ICP (repeatability 0.81, reproducibility 0.70). Correlation coefficient between CCT and IOP is 0.66 for both ICP and PAT. CONCLUSION: ICP tends to overestimate IOP compared to PAT. Repeatability and reproducibility are both high for PAT as compared to ICP. A significant correlation between IOP and CCT for both instruments has been demonstrated.


Asunto(s)
Anestesia , Glaucoma/diagnóstico , Presión Intraocular/fisiología , Tonometría Ocular/instrumentación , Niño , Preescolar , Diseño de Equipo , Femenino , Humanos , Lactante , Masculino , Estudios Prospectivos , Reproducibilidad de los Resultados
4.
Int Ophthalmol ; 39(2): 497-505, 2019 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-29332227

RESUMEN

PURPOSE: To review the state of the art of Accommodative Esotropia (AE) through careful study of what has been reported up to the point in literature. METHODS: A literature search was done on PubMed using key words including "Accommodative esotropia", "Infantile esotropia", "Strabismus" and "Accommodation". We systematically reviewed and critically appraised what has been written about AE and we tried to analyze that according to the current management of AE. RESULTS: Accommodative Esotropia (AE) is a form of strabismus characterized by convergent misalignment of the visual axes that can be associated with hyperopia and abnormal fusional divergence. Also abnormal accommodative convergence/accommodation ratio could be found. In lots of cases, AE initially presents as an intermittent esodeviation at age 1.5 to 4 years. The prevalence of AE has been estimated near 1-2% in the United States. The only treatment with an optical correction usually is successful in re-establishing alignment, but surgical correction is necessary in approximately 30% of cases.


Asunto(s)
Acomodación Ocular/fisiología , Manejo de la Enfermedad , Esotropía , Músculos Oculomotores/cirugía , Procedimientos Quirúrgicos Oftalmológicos/métodos , Refracción Ocular/fisiología , Agudeza Visual , Esotropía/epidemiología , Esotropía/fisiopatología , Esotropía/terapia , Movimientos Oculares , Salud Global , Humanos , Músculos Oculomotores/fisiopatología , Prevalencia , Privación Sensorial
5.
Retina ; 36 Suppl 1: S178-S188, 2016 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-28005676

RESUMEN

PURPOSE: To localize the various levels of abnormalities in multiple evanescent white dot syndrome by comparing "en face" optical coherence tomography (OCT) and OCT angiography with various conventional imaging modalities. METHODS: In this retrospective case series, multimodal imaging was performed in 9 retinal centers on 36 patients with multiple evanescent white dot syndrome and included widefield fundus autofluorescence (FAF), fluorescein angiography (FA), and indocyanine green angiography, and B-scan and "en face" C-scan enhanced depth imaging and spectral domain OCT. Optical coherence tomography angiography was also performed at the level of the superficial and deep retinal capillary plexus and choroid. RESULTS: Multiple evanescent white dot syndrome lesions were more numerous and more easily detectable with FA and FAF. Two types of lesions were identified with FAF, FA, and indocyanine green angiography: larger widely scattered "spots" (approximately 200 µ in diameter) that were hyperfluorescent with FA, hyperautofluorescent with FAF, and hyporeflective in indocyanine green angiography, representing abnormalities primarily at the retinal pigment epithelium/photoreceptor junction; and punctate "dots" (less than 100 µ in diameter) that were hyperfluorescent with FA, hyperautofluorescent, or isoautofluorescent with FAF, and hypofluorescent with indocyanine green angiography and that localized to the outer nuclear layer. These lesions colocalized with "en face" OCT. The larger confluent "spots" were hyporeflective and colocalized to the level of the ellipsoid zone, whereas smaller hyperreflective "dots" colocalized to the outer nuclear layer. The location of the "dots" in the outer nuclear layer was further confirmed by structural spectral domain optical coherence tomography which showed coalescence of the dots into hyperreflective lines extending from the external limiting membrane to the outer plexiform layer in certain cases. Optical coherence tomography angiography analysis of the retinal microvasculature and choriocapillaris and choroid were entirely unremarkable in 100% of our patients. CONCLUSION: By combining multimodal imaging, the authors propose that multiple evanescent white dot syndrome is primarily the result of inflammation at the outer photoreceptor level leading to a "photoreceptoritis" and causing loss of the inner and outer segments. Its evanescent nature suggests that the photoreceptor cell bodies remain intact ensuring complete recovery of the photoreceptor inner and outer segments in most cases, compatible with the clinical course of spontaneous resolution of white spots and dots.


Asunto(s)
Coriorretinitis/diagnóstico por imagen , Adulto , Colorantes , Angiografía por Tomografía Computarizada/métodos , Angiografía con Fluoresceína/métodos , Humanos , Verde de Indocianina , Masculino , Imagen Multimodal/métodos , Imagen Óptica/métodos , Estudios Retrospectivos , Síndrome , Tomografía de Coherencia Óptica/métodos , Adulto Joven
6.
Int Ophthalmol ; 36(2): 275-9, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26449229

RESUMEN

Masquerade syndromes are disorders occurring with intraocular inflammation misdiagnosed as uveitis. The underlying causes may be benign or malignant conditions, and one of the most important diagnoses to take into consideration in children is retinoblastoma. We present two cases with uncertain early misdiagnosis whose definite diagnosis eventually was retinoblastoma.


Asunto(s)
Neoplasias de la Retina/diagnóstico , Retinoblastoma/diagnóstico , Niño , Preescolar , Diagnóstico Diferencial , Femenino , Humanos , Masculino , Pars Planitis/diagnóstico , Desprendimiento de Retina/diagnóstico
7.
Int Ophthalmol ; 35(2): 241-8, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-24719022

RESUMEN

The cause of the anomalous head posture (AHP) has been mainly assigned to ocular, orthopedic, and neurologic causes. The AHP can take the form of head tilt, face turn, chin up, chin down, or combined, depending on the specific etiology. However, there are many variations, and the type of the head posture cannot reliably predict the underlying cause. Ocular AHP is usually an attempt to improve visual acuity or binocularity. Since the etiology is not always obvious, we stress that these patients must be carefully evaluated by ophthalmologists. Our effort here is to offer the neurologist a thorough insight in the specific head posture pattern primarily related to visual disorders.


Asunto(s)
Movimientos de la Cabeza , Trastornos de la Motilidad Ocular/complicaciones , Postura , Trastornos de la Visión/complicaciones , Humanos
8.
Graefes Arch Clin Exp Ophthalmol ; 252(10): 1661-7, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25038908

RESUMEN

PURPOSE: To report a novel spectral-domain optical coherence tomography (SD-OCT) finding in children affected by tilted disc syndrome (TDS), and to correlate it with early visual field defects. METHODS: Patients between 5 and 17 years old with TDS were enrolled in this study. The diagnosis of TDS was made by stereoscopic fundus photography, when the upper edge of the optic disc protruded anteriorly relative to its lower edge. All eyes were examined with 12 radial SD-OCT B-scans of 12 mm centered on the optic disc; the fundus area encompassing the optic nerve was additionally scanned using several vertical and horizontal scans.. C-scan SD-OCT were acquired using the Macular Cube 512 x 128 to create the en face image. Standard automated perimetry 24-2 tests were performed on all patients. RESULTS: Thirty-eight eyes of 20 pediatric patients with TDS syndrome were enrolled during this 24-months clinical trial. Their mean age was 10.9 ± 2.7 years (range 7-15 years), 12 (60%) were male and eight (40%) were female. The OCT images of the optic discs showed a protrusion of the upper edge of Bruch's membrane and choroid at the nasal edge of the optic disc in 39.5% of the eyes. The retinal nerve fiber tissue appeared to be herniated into this protrusion and bent superiorly in 15 eyes. This severe bending corresponded to early visual field anomalies that were not reduced by corrective lenses in 46.7% of the eyes. CONCLUSION: Visual field defects that do not improve by increased myopic correction in TDS may be due to the severe bending of the retinal nerve fiber tissue, which would impair axonal flow.


Asunto(s)
Anomalías del Ojo/diagnóstico , Fibras Nerviosas/patología , Disco Óptico/anomalías , Células Ganglionares de la Retina/patología , Tomografía de Coherencia Óptica , Trastornos de la Visión/diagnóstico , Campos Visuales , Adolescente , Niño , Femenino , Humanos , Masculino , Disco Óptico/patología , Pruebas del Campo Visual
9.
Int Ophthalmol ; 34(2): 437-46, 2014 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23864285

RESUMEN

Pars plana vitrectomy and inner limiting membrane (ILM) peeling are standard procedures for macular hole and epiretinal membrane surgery. However, ILM peeling is known to cause mechanical traumatic changes to the retinal nerve fiber layer. Recently there have been numerous reports of anatomical changes in the macula after ILM removal. A comprehensive review of the literature. The earliest change in the macula after ILM peeling is post-operative swelling of the arcuate retinal nerve fiber layer (SANFL), which disappears within the 3 month; the swelling is not detected on biomicroscopic fundus examination but appears as hypoautofluorescent arcuate striae in the macular region on infrared and autofluorescence imaging, with corresponding hyperreflectant swelling demonstrated on spectral-domain optical coherence tomography (OCT). SANFL is followed by dissociated optic nerve fiber layer defect, faintly visible on fundus examination and corresponding on OCT to "dimples" in the inner retinal layers. The en face tomographic aspect of this defect appears as concentric macular dark spots. Post-operative foveal displacement toward the optic disc might be responsible for the stretching and thinning of the retinal parenchyma in the temporal subfield and the thickening of the nasal macula. This shortening of the papillofoveal distance after surgery is probably secondary to axonal transport and contractility alterations in the nerve fiber layer, which might also account for apoptotic and atrophic degeneration of the peripapillary retinal nerve fiber layer. Ganglion cells do not seem to be affected by ILM peeling, even if the ganglion cell complex loses some volume because of trauma to the Müller cells contained in the ganglion cell layer. Despite its clear indication in macular hole and epiretinal membrane surgery, ILM peeling is a traumatic procedure that has acute effects on the underlying inner retinal layers. Further investigation of these subclinical changes may assist in aiding the development of minimally traumatic techniques for ILM removal.


Asunto(s)
Membrana Epirretinal/cirugía , Complicaciones Posoperatorias , Retina/lesiones , Enfermedades de la Retina/etiología , Vitrectomía/efectos adversos , Humanos , Vitrectomía/métodos
10.
Int Ophthalmol ; 34(4): 967-70, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24477744

RESUMEN

This case report highlights the usefulness of Ultrasound Biomicroscopy (UBM) in a case of retinoblastoma which showed massive anterior chamber involvement after treatment with intra-arterial chemotherapy. UBM was used to document tumour pseudohypopion, cells in the aqueous humor, implanted clusters of cells on the corneal endothelium, iris nodules, lens capsule deposits and ciliary body invasion. The UBM data, compared with the histopathologic analysis, performed on eye tissue, after enucleation of the affected eye, revealed a significant concordance. UBM may represent an important diagnostic tool in retinoblastoma, when the decision about enucleation of the eye must be made in the absence of histopathologic data.


Asunto(s)
Cámara Anterior/diagnóstico por imagen , Antineoplásicos/administración & dosificación , Neoplasias de la Retina/diagnóstico por imagen , Retinoblastoma/diagnóstico por imagen , Cámara Anterior/patología , Humanos , Lactante , Inyecciones Intraarteriales , Masculino , Microscopía Acústica , Invasividad Neoplásica/diagnóstico por imagen , Retinoblastoma/tratamiento farmacológico , Retinoblastoma/patología
11.
Microorganisms ; 12(5)2024 May 14.
Artículo en Inglés | MEDLINE | ID: mdl-38792813

RESUMEN

The emergence of antibiotic resistance poses a significant threat to public health worldwide, affecting various medical fields, including ophthalmology. Eye infections, ranging from conjunctivitis to more severe conditions like keratitis, are commonly treated with antibiotics. However, the misuse and overuse of these drugs have led to the development of resistant strains of bacteria, allowing traditional treatments ineffective. This paper aims to examine the current situation of antibiotic resistance in eye infections globally, with a specific focus on a large group of hospitals located in Milan (Italy) with considerable experience in cataract and cornea surgery as well as in retinopathy. The results of the study show the prevalence of Gram-positives in the tested samples and a low resistance of fluoroquinolones and glycopeptides. The results also highlight the need to implement sample collection methods for ocular infections, as the quantity of positive samples is rather low compared to the total number of samples. In conclusion, the study, although with limited data, shows that resistance to aminoglycosides and cephalosporins is a situation to be monitored. These data also show the critical need to improve and guide the biological sample collection modalities in order to make the diagnosis more reliable.

12.
Eur J Ophthalmol ; 34(2): 419-424, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-37439027

RESUMEN

PURPOSE: To report the clinical course and management of unusual anterior and posterior segment features of Coats disease and their relation to the age of the patients to increase the awareness towards these rare clinical features rarely described in the current literature. METHODS: A retrospective descriptive review of 45 eyes of 45 patients affected by Coats disease was conducted at the Retinoblastoma Referral Center and Ophthalmology Unit of the University of Siena in Italy analyzing data from 2000 to 2022. Medical records and images were revised to find some cases presenting unusual anterior and posterior segment features in patients affected by Coats disease.We identified therefore 4 unusual clinical conditions: retinal macrocysts, anterior chamber cholesterolosis, fovea-sparing Coats disease and secondary vasoproliferative tumor. RESULTS: Two patients presented with retinal macrocyst (2/45 = 4.4%), one with anterior chamber cholesterolosis (1/45 = 2.2%), two with fovea sparing Coats disease (2/45 = 4.4%) and one with vasoproliferative tumor associated (1/45 = 2.2%) for a total of six (6/45 = 13.3%) patients manifesting unusual anterior or posterior segment features in Coats disease. CONCLUSION: Unusual anterior and posterior segment features of Coats disease such as retinal macrocyst and anterior chamber cholesterolosis have been more frequently reported in younger children while fovea-sparing and vasoproliferative tumors have been more commonly described in older patients. Age is then a strong prognostic marker which allows to distinguish two different phenotypes of Coats disease: patients younger and older than 3 years old with more aggressive and milder phenotype respectively.


Asunto(s)
Neoplasias Primarias Secundarias , Neoplasias de la Retina , Telangiectasia Retiniana , Retinoblastoma , Niño , Humanos , Anciano , Preescolar , Telangiectasia Retiniana/diagnóstico , Estudios Retrospectivos , Retina , Neoplasias de la Retina/diagnóstico
13.
Ophthalmic Plast Reconstr Surg ; 29(1): e27-9, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23128529

RESUMEN

A 9-year-old patient affected by ectrodactyly-ectodermal dysplasia was referred to our clinic complaining of epiphora in both eyes. She had previous external dacryocystorhinostomy in her left eye. Ophthalmic examination revealed absence of the superior tear ducts and discharge in both eyes. Lacrimal irrigation through the inferior canaliculi revealed nasolacrimal duct obstruction on both sides. A bilateral endo-dacryocystorhinostomy was performed as a revision procedure in the left eye and as first procedure in the right eye. A monocanalicular silicone stent through the inferior tear duct was introduced on both sides at the end of the surgery. Follow up was 8 and 5 months for the left and the right eye, respectively. Epiphora was absent, and lacrimal irrigation showed a patent osteum at last follow-up. This case suggests that endo-dacryocystorhinostomy seems to be a safe and effective procedure, both as revision and as first procedure, even in children with ectrodactyly-ectodermal dysplasia.


Asunto(s)
Dacriocistorrinostomía , Displasia Ectodérmica/complicaciones , Deformidades Congénitas del Pie/complicaciones , Deformidades Congénitas de la Mano/complicaciones , Conducto Nasolagrimal/cirugía , Niño , Femenino , Humanos , Intubación , Obstrucción del Conducto Lagrimal/diagnóstico , Obstrucción del Conducto Lagrimal/etiología , Conducto Nasolagrimal/patología , Reoperación , Elastómeros de Silicona , Stents
14.
Int Ophthalmol ; 33(5): 589-93, 2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23277210

RESUMEN

Management of retinoblastoma (Rb), the most common intraocular malignant tumor in childhood, is tailored to each individual case and based on the overall situation. We present a case of bilateral Rbs in a 4-month-old girl, referred to our center for bilateral leukocoria. In the right eye, the optic disc was partially visible, and three large foci of retinoblastoma were noted adjective in the vitreous cavity with satellite retinal detachment. The macula was obscured by the tumors. The tumor was therefore classified as group D (International classification of retinoblastoma), and thus underwent intravenous chemotherapy with the standard three-agent protocol of ifosfamide, carboplatin and etoposide (ICE protocol) delivered monthly for six cycles, regressing with a type I calcified pattern. The left eye presented three multifocal yellow-white retinal masses, with a total retinal detachment, and secondary glaucoma. The lesions were classified as group E and, therefore, taking the results obtained by Shields et al. in group E tumors into consideration, underwent enucleation. This case clearly shows that this cancer is curable if detected at a stage in which it is still contained within the retina, subretinal space or vitreous, and that the management of Rb relies on an experienced team of ocular oncologists, pediatricians and pediatric ophthalmologists working together for the single goal of saving the child's life.


Asunto(s)
Neoplasias de la Retina , Retinoblastoma , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Cisplatino/administración & dosificación , Etopósido/administración & dosificación , Enucleación del Ojo , Femenino , Humanos , Ifosfamida/administración & dosificación , Lactante , Neoplasias de la Retina/diagnóstico , Neoplasias de la Retina/terapia , Retinoblastoma/diagnóstico , Retinoblastoma/terapia , Resultado del Tratamiento
15.
Eur J Ophthalmol ; : 11206721231203265, 2023 Sep 18.
Artículo en Inglés | MEDLINE | ID: mdl-37723901

RESUMEN

PURPOSE: To describe the retinal vascular changes in birdshot chorioretinopathy (BSCR) using optical coherence tomography angiography (OCTA) and to compare them with changes in macular thickness. METHODS: In this multicenter study, patients with a diagnosis of BSCR and a positive HLA-A29 underwent fluorescein angiography, spectral domain optical coherence tomography (SD-OCT), and OCTA. The foveal avascular zone (FAZ) and the area of capillary non-perfusion were manually measured by two examiners in fluorescein angiography (FA) and 3 × 3-mm OCTA images of the superficial retinal layer. These measurements were compared to central retinal thickness. To calculate normal capillary density, we collected data from 22 controls who had OCTA performed on one visit only. RESULTS: A total of 44 eyes with BSCR were enrolled. The mean automated parafoveal superficial capillary density in BSCR eyes was 0.47 ± 0.03. The differences between the foveal capillary density of BSCR patients and healthy subjects were statistically significant (P < 0.001). The mean area of FAZ manually measured on the 3 × 3 mm unsegmented OCTA images was larger in eyes with BSCR (1.34 ± 0.41 mm2; P < 0.0001). Measurement of FAZ area showed good interobserver (κ 0.88) and intraobserver repeatability (κ 0.79) on OCTA images. The intraclass correlation coefficient for FAZ measurements on FA between the two observers was 0.48. The OCT retinal thickness maps of all BSCR eyes demonstrated statistically significant thinning compared to those of control subjects (P < 0.01). CONCLUSION: Our study demonstrates the potential contribution of OCTA as a new non-invasive imaging technology that monitors disease activity in BSCR patients.

16.
PLoS One ; 18(2): e0281816, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36795775

RESUMEN

PURPOSE: To evaluate the efficacy of a myopia control spectacle lens (DIMS) at slowing the progression of myopia in a population of European children in comparison with 0.01% atropine and combined DIMS and atropine. METHODS: The study was a non-randomised experimenter-masked prospective controlled observational study of individuals aged 6-18 years with progressing myopia but no ocular pathology. Participants were allocated, according to patient/parent choice, to receive 0.01% atropine eyedrops, DIMS (Hoya® MiyoSmart®) spectacles, combined atropine+DIMS or single vision spectacle lenses (control group). The key outcome variables, cycloplegic autorefraction spherical equivalent refraction (SER) and axial length (AL), were measured at baseline and after three, six, and 12 months. RESULTS: Of the 146 participants (mean age 10.3y ±3.2), 53 received atropine, 30 DIMS spectacles, 31 atropine+DIMS, and 32 single vision control spectacles. Generalized linear mixed model analysis revealed for SER, whilst controlling for age and SER at baseline, at each stage all treatment groups had significantly reduced progression compared with the control group (p<0.016). For AL, whilst controlling for baseline age and AL, at 6 and 12 months all treatment groups had significantly less progression than the control group (p<0.005). For SER only, in pairwise comparisons at 12 months the atropine+DIMS group had significantly reduced progression compared with the DIMS only and Atropine only groups (p<0.001). CONCLUSION: In a European population, DIMS and atropine are effective at reducing myopia progression and axial elongation in progressing myopia and are most successful at reducing myopia progression when used in combination.


Asunto(s)
Atropina , Miopía , Humanos , Niño , Adolescente , Atropina/uso terapéutico , Anteojos , Estudios Prospectivos , Miopía/epidemiología , Miopía/prevención & control , Refracción Ocular , Progresión de la Enfermedad
17.
Ophthalmic Surg Lasers Imaging Retina ; 54(6): 330-336, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-37352397

RESUMEN

OBJECTIVES: To describe multimodal imaging findings of vitamin A deficiency retinopathy. METHODS: A retrospective study of patients with serum retinol < 0.3 mg/L. Fundus color photos, spectral domain-optical coherence tomography (SD-OCT), and fundus autofluorescence (FAF) were reviewed and, when available, electrophysiological tests were analyzed. RESULTS: Forty-five eyes (63.9 ± 15.7 years) were included. Ultra-widefield fundus photography showed drusen-like deposits (53.3%) and macular retinal pigment epithelium (RPE) mottling (40%). The deposits were hypoautofluorescent, and a perifoveal hyperautofluorescent ring was present in 8.9%. By SD-OCT, the ellipsoid zone had an irregular appearance (100%) and conical deposits anterior to the RPE (33.3%). Electroretinogram (ERG) (66.7%) showed a decrease in b-wave in the scotopic registers, and microperimetry (4.4%) showed decreased foveal sensitivity. After vitamin A supplementation, SD-OCT and FAF showed resolution of all findings. Forty percent of eyes had restoration of the scotopic registers in ERG and improved macular sensitivity by microperimetry (4.4%). CONCLUSIONS: Vitamin A deficiency causes a mild cone dysfunction in addition to the more severe absent rod response. [Ophthalmic Surg Lasers Imaging Retina 2023;54:330-336.].


Asunto(s)
Enfermedades de la Retina , Deficiencia de Vitamina A , Humanos , Deficiencia de Vitamina A/complicaciones , Deficiencia de Vitamina A/diagnóstico , Estudios Retrospectivos , Retina , Trastornos de la Visión , Tomografía de Coherencia Óptica , Imagen Multimodal , Angiografía con Fluoresceína
18.
Ophthalmologica ; 228(3): 154-8, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22572718

RESUMEN

PURPOSE: To evaluate short-term intraocular pressure (IOP) changes after phacoemulsification in glaucoma and normal patients and the effect of oral acetazolamide (Diamox) to control IOP in these patients. METHODS: 120 patients undergoing cataract surgery were included in this prospective multicenter study involving 6 University Eye Clinics: 60 patients with well-controlled primary open-angle glaucoma (POAG) and 60 controls. Half of the study participants received oral acetazolamide, 250 mg, 1 and 6 h after surgery. The treated and untreated groups were matched for age and density of cataract. All patients underwent a standard phacoemulsification procedure and were checked for IOP with Goldmann tonometry in the morning before surgery and then at 3, 6, 21 and 24 h postoperatively by a masked evaluator. RESULTS: The group with POAG showed a significant postsurgical increase in IOP (p < 0.001) at all time points. Six of thirty (20%) untreated POAG patients showed at least 1 IOP reading above 30 mm Hg whereas acetazolamide significantly reduced postoperative IOP at all time points (p < 0.01) and in no case was IOP >30 mm Hg. The control group had high IOP during the first 6 h (p < 0.01), but normal values thereafter. CONCLUSION: A significant short-term IOP increase may be found after phacoemulsification both in POAG and normal patients; this is not dangerous in normal subjects, but can be potentially dangerous in POAG patients. The use of systemic acetazolamide provided significant control of IOP and could be considered a 'possible standard' management of cataract surgery in POAG patients.


Asunto(s)
Catarata/complicaciones , Glaucoma de Ángulo Abierto/complicaciones , Presión Intraocular/fisiología , Hipertensión Ocular/etiología , Facoemulsificación , Complicaciones Posoperatorias , Acetazolamida/administración & dosificación , Acetazolamida/uso terapéutico , Administración Oral , Anciano , Inhibidores de Anhidrasa Carbónica/administración & dosificación , Inhibidores de Anhidrasa Carbónica/uso terapéutico , Catarata/fisiopatología , Glaucoma de Ángulo Abierto/fisiopatología , Humanos , Presión Intraocular/efectos de los fármacos , Hipertensión Ocular/fisiopatología , Hipertensión Ocular/prevención & control , Estudios Prospectivos , Factores de Tiempo , Tonometría Ocular
19.
ScientificWorldJournal ; 2012: 804730, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22606063

RESUMEN

PURPOSE: To compare the ocular hypotensive effect of tafluprost with prostaglandin analogues (PGAs) in glaucoma patients. METHODS: 89 primary open-angle glaucoma patients treated with bimatoprost, latanoprost, or travoprost for at least 3 months complaining for ocular discomfort were switched to tafluprost. IOP was assessed at baseline and 3 months after switching the therapy by daily curve. Primary outcome was to compare the mean daily IOP of tafluprost with PGAs. RESULTS: The mean daily IOP was 16 ± 2.1 and 16.6 ± 2.0 mm Hg at baseline and after switching to tafluprost, respectively (P > 0.05). When analysis was carried out between tafluprost and each previous PGAs, the comparison between latanoprost and tafluprost and travoprost and tafluprost did not show any statistically significant difference in mean daily IOP and at each time point. The comparison between bimatoprost and tafluprost showed a statistically significant difference in mean daily IOP (P < 0.05) and at each time point (P < 0.05). CONCLUSIONS: After 3 months of switching tafluprost showed an overall IOP lowering effect similar to others PGAs. When each PGA was compared with tafluprost, bimatoprost showed to provide a statistically significant additional IOP lowering effect.


Asunto(s)
Glaucoma de Ángulo Abierto/tratamiento farmacológico , Presión Intraocular , Prostaglandinas F/farmacología , Prostaglandinas Sintéticas/farmacología , Anciano , Amidas/farmacología , Bimatoprost , Cloprostenol/análogos & derivados , Cloprostenol/farmacología , Glaucoma de Ángulo Abierto/patología , Humanos , Latanoprost , Persona de Mediana Edad , Soluciones Oftálmicas/farmacología , Conservadores Farmacéuticos/farmacología , Estudios Prospectivos , Prostaglandinas F Sintéticas/farmacología , Factores de Tiempo , Travoprost , Resultado del Tratamiento
20.
ScientificWorldJournal ; 2012: 481584, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22654614

RESUMEN

PURPOSE: We describe in our study a modified standard enucleation, using sclera harvested from the enucleated eye to cover the prosthesis in order to insert a large porous implant and to reduce postoperative complication rates in a phthisis globe. METHODS: We perform initially a standard enucleation. The porous implant (Bioceramic) is then covered only partially by the patient's sclera. The implant is inserted in the posterior Tenon's space with the scleral covering looking at front. All patients were followed at least for twelve months (average followup 16 months). RESULTS: We performed nineteen primary procedures (19 patients, 19 eyes, x M; x F) and secondary, to fill the orbital cavity in patients already operated by standard evisceration (7 patients, 7 eyes). There were no cases of implant extrusion. The orbital volume was well reintegrated. CONCLUSION: Our procedure was safe and effective. All patients had a good cosmetic result after final prosthetic fitting and we also achieved good prothesis mobility.


Asunto(s)
Óxido de Aluminio/química , Enucleación del Ojo/métodos , Implantes Orbitales , Esclerótica , Enucleación del Ojo/efectos adversos , Evisceración del Ojo/efectos adversos , Evisceración del Ojo/métodos , Femenino , Humanos , Masculino , Persona de Mediana Edad
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