1. 1-24 of 27 1 2 »
    1. Evaluation of retinal structure in unilateral amblyopia using spectral domain optical coherence tomography

      Evaluation of retinal structure in unilateral amblyopia using spectral domain optical coherence tomography

      Purpose To investigate potential differences in the retinal nerve fiber layer (RNFL) thickness, macular thickness and foveal thickness between amblyopic eyes and normal fellow eyes on spectral domain optical coherence tomography (SD-OCT). Methods A cross-sectional study of patients ≥10 years of age with unilateral amblyopia resulting from an anisometropic, strabismic or deprivative cause. Comprehensive ophthalmic examination was completed and the retinal structures of both eyes were measured using SD-OCT. We compared the measurements obtained between the amblyopic eye and the fellow normal eye in each subject. Results Twenty-six unilateral amblyopia patients with a mean age of 29.92 ± 14.19 ...

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    2. OCT angiography findings in children with amblyopia

      OCT angiography findings in children with amblyopia

      Purpose To compare the microstructure and vascularity of amblyopic eyes in children with their contralateral eye and with eyes from control children using optical coherence tomography angiography (OCT-A). Methods We conducted a prospective, cross-sectional evaluation of macular and optic disk vascular density and flow area using OCT-A (Avanti RTVue XR, Optovue Inc, Fremont, CA). Parameters were calculated using automated software. Results A total of 52 children were included: 26 subjects with amblyopia and 26 nonamblyopic controls. The amblyopic eye of subjects showed a statistically significant decrease in macular vascular density ( P = 0.0171) of the superficial capillary plexus (SCP), in ...

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    3. Bruch’s membrane opening on optical coherence tomography in pediatric papilledema and pseudopapilledema

      Bruch’s membrane opening on optical coherence tomography in pediatric papilledema and pseudopapilledema

      Purpose To determine whether the diameter of Bruch’s membrane opening (BMO) can distinguish mild papilledema from pseudopapilledema using optical coherence tomography (OCT). Methods The medical records of pediatric patients with pseudopapilledma due to optic nerve head (ONH) drusen, patients with papilledema, and normal control subjects were reviewed retrospectively. All eyes underwent OCT imaging of the BMO and retinal nerve fiber layer (RNFL). Transverse horizontal diameter of the BMO and papillary height were measured. Mean BMO, papillary height, and RNFL were compared and receiver operating characteristic (ROC) curves were used to calculate the area under the curve (AUC) and determine ...

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    4. Comparison of quantitative measurement of foveal avascular zone and macular vessel density in eyes of children with amblyopia and healthy controls: an optical coherence tomography angiography study

      Comparison of quantitative measurement of foveal avascular zone and macular vessel density in eyes of children with amblyopia and healthy controls: an optical coherence tomography angiography study

      Purpose To quantify vessel density of superficial capillary plexus (SCP), deep capillary plexus (DCP), and the foveal avascular zone (FAZ) of children’s amblyopic eyes and to compare the measurements with those of companion eyes and age-matched controls. Methods Fifteen patients with strabismic amblyopia, and 15 age-matched controls were included in this cross-sectional study. SCP, DCP, and FAZ were measured via optical coherence tomographic angiography (OCTA). Results Mean subject age was 8.2 ± 2.3 years in the amblyopia group and 8.6 ± 2.2 years in the control group. The mean SCP at 1 mm, 2 mm, and 3 ...

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    5. Spectral domain optical coherence tomography to assess the insertion of extraocular rectus muscles

      Spectral domain optical coherence tomography to assess the insertion of extraocular rectus muscles

      Purpose To determine the distance of the horizontal rectus muscle insertion to the limbus using spectral domain optical coherence tomography (SD-OCT) and to evaluate whether results are correlated with sex, age, or axial length. Methods The right eyes of healthy, white subjects were imaged with SD-OCT. Subjects’ sex and age were recorded, and axial length was measured using an optical biometer. The distance from the horizontal rectus insertion to the limbus was measured. The intraclass correlation coefficient (ICC) was used to assess the reproducibility of the measurements with a subset of images. A multivariate model was adjusted to analyze whether ...

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    6. Optical coherence tomography to monitor vigabatrin toxicity in children

      Optical coherence tomography to monitor vigabatrin toxicity in children

      Purpose The antiepileptic drug vigabatrin is known to cause permanent loss of vision. Both visual field testing and electroretinogram are used to detect retinal damage. Adult data on optical coherence tomography (OCT) shows that retinal nerve fiber layer (RNFL) thinning may be an early indicator of vigabatrin-induced retinal toxicity. The purpose of this study was to investigate whether OCT can detect early vigabatrin-induced retinal toxicity in children. Methods Pediatric patients (≤18 years of age) requiring vigabatrin for seizure control who were followed at our institution were invited to participate. Patients were examined according to manufacturer guidelines, with most examinations taking ...

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    7. Noninvasive assessment of the retina and the choroid using enhanced-depth imaging optical coherence tomography shows microvascular impairments in childhood obesity

      Noninvasive assessment of the retina and the choroid using enhanced-depth imaging optical coherence tomography shows microvascular impairments in childhood obesity

      Purpose To evaluate the retinal vascular diameters and macular and subfoveal choroidal thicknesses of obese and nonobese children using enhanced-depth imaging spectral domain optical coherence tomography (EDI SD-OCT). Methods The retinal vascular diameters of the 4 largest retinal arterioles and venules and macular and subfoveal choroidal thickness measurements of 40 obese children (body mass index [BMI] z score above +2.0 standard deviations) were obtained by EDI SD-OCT and compared with those of 40 age- and sex-matched nonobese children. Anthropometric measures, including weight and height, were also obtained. BMI z score was defined using standardized protocols. Results The mean BMI ...

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    8. The macula in pediatric glaucoma: quantifying the inner and outer layers via optical coherence tomography segmentation

      The macula in pediatric glaucoma: quantifying the inner and outer layers via optical coherence tomography segmentation

      Recent Spectralis (Heidelberg, Germany) spectral domain optical coherence tomography research software can quantify the thickness of each individual retinal layer. There is a suggestion that the macular ganglion cell layer (GCL) and ganglion cell complex may be more sensitive for detecting glaucoma than the peripapillary retinal nerve fiber layer (pRNFL). The purpose of this study was to characterize/compare the thickness of each macular layer among children with glaucoma versus normals.

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    9. Pediatric spectral domain optical coherence tomography (SD-OCT) normative data for novel optic nerve parameters using the Heidelberg Spectralis

      Pediatric spectral domain optical coherence tomography (SD-OCT) normative data for novel optic nerve parameters using the Heidelberg Spectralis

      SD-OCT normative data for optic nerve volume (ONV) and the peripapillary papillomacular bundle thickness have not been reported, yet these parameters are relevant for neuro-ophthalmic disease. The purpose of this study was to determine pediatric norms for these parameters and expand the dataset for typical OCT parameters.

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    10. Reproducibility of retinal nerve fiber layer thickness measures using eye-tracking with spectral-domain optical coherence tomography in children with optic neuropathy

      Reproducibility of retinal nerve fiber layer thickness measures using eye-tracking with spectral-domain optical coherence tomography in children with optic neuropathy

      To determine the intra- and intervisit reproducibility of circumpapillary retinal nerve fiber layer (RNFL) thickness measures using eye-tracking-assisted spectral domain optical coherence tomography (SD-OCT) in children with nonglaucomatous optic neuropathy.

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    11. Foveal microanatomy documented by SD-OCT following treatment of advanced retinoblastoma

      Foveal microanatomy documented by SD-OCT following treatment of advanced retinoblastoma

      Progress in the treatment of retinoblastoma has greatly improved patient survival and globe salvage rates. The introduction of intraoperative spectral domain optical coherence tomography (OCT) allows visualization of foveal anatomy and microstructure to predict visual potential and facilitate planning for visual rehabilitation. Eyes with total retinal detachments secondary to exophytic retinoblastoma have OCT findings of absence or disruption of the external limiting membrane and ellipsoid layers. We document the evolution of foveal microanatomy reconstitution following the use of chemotherapy in a 1-year-old boy and illustrate the restoration of the external limiting membrane and ellipsoid layer, thus achieving normal foveal microanatomy.

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    12. The accuracy of anterior segment optical coherence tomography (AS-OCT) in localizing extraocular rectus muscles insertions

      The accuracy of anterior segment optical coherence tomography (AS-OCT) in localizing extraocular rectus muscles insertions

      Purpose To evaluate the accuracy of the anterior segment optical coherence tomography (AS-OCT) in measuring the distance from the limbus to the insertion of primary and previously operated rectus muscles in children. Methods In this prospective, double masked, observational study the distance of the extraocular muscle insertion from the limbus measured by AS-OCT preoperatively was compared to intraoperative measurement using the surgical calipers. Consecutive patients 4-18 years of age undergoing primary or repeat strabismus surgery on horizontal or vertical rectus muscles between September 2013 and May 2014 were included. Patients with any condition that interfered with imaging were excluded. Participants ...

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    13. Anomalous optical coherence tomography findings in Wyburn-Mason syndrome and isolated retinal arteriovenous malformation

      Anomalous optical coherence tomography findings in Wyburn-Mason syndrome and isolated retinal arteriovenous malformation

      We report 2 cases of unilateral retinal arteriovenous malformation (AVM) with previously unreported anomalies of the inner retinal layers detected on spectral domain optical coherence tomography (SD-OCT): a 5-year-old girl with a large unilateral retinal AVM, ipsilateral visual acuity of 20/200, and ipsilateral intracranial AVM; and a 10-year-old boy with a large unilateral retinal AVM, ipsilateral visual acuity of 20/20, ipsilateral temporal visual field defects, and no intracranial AVM. Both macular SD-OCT findings showed multiple large inner retinal vessels that created a prominent shadowing artifact, retinal thickening, and speckling and heterogeneity of inner retinal layers.

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    14. Fundus autofluorescence and optical coherence tomography findings in glutathione synthetase deficiency

      Fundus autofluorescence and optical coherence tomography findings in glutathione synthetase deficiency

      We report the autofluorescence pattern and optical coherence tomography (OCT) characteristics in a 6-year-old boy with glutathione synthetase deficiency. The patient underwent complete ophthalmological examination, including full-field electroretinography, visual evoked potentials, fundus autofluorescence, and OCT imaging. Electrophysiological studies showed time-delay and subnormal responses. Fundus autofluorescence imaging revealed increased parafoveal autofluorescence compared to normal, and OCT showed alteration of photoreceptor and retinal pigment epithelium layers in the parafoveal region.

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    15. Macular optical coherence tomography in patients with unilateral optic nerve hypoplasia

      Macular optical coherence tomography in patients with unilateral optic nerve hypoplasia

      Purpose To characterize the extent and location of macular thinning in patients with unilateral optic nerve hypoplasia (ONH) as compared to the contralateral normal eye. Methods The medical records of patients with unilateral ONH who underwent spectral domain optical coherence tomography (SD-OCT) of the macula were retrospectively reviewed. SD-OCT scans were manually segmented by 3 observers in 3 macular regions (superior, central, inferior). Boundaries identified included the inner limiting membrane, the junction between the inner nuclear layer and outer plexiform layer, and the neural retina–retinal pigment epithelium interface. Using custom MATLAB software, inner and outer retinal thickness profiles were ...

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    16. Relationship of inferior oblique overaction to macular and subfoveal choroidal thickness

      Relationship of inferior oblique overaction to macular and subfoveal choroidal thickness

      Purpose To evaluate the macular and subfoveal choroidal thickness of eyes with inferior oblique muscle overaction (IOOA) using enhanced depth imaging spectral domain optical coherence tomography (EDI SD-OCT). Methods The measurements of macular and subfoveal choroidal thickness obtained by EDI SD-OCT of patients with IOOA (24 patients) were compared with those of age- and sex-matched controls (25 subjects). Results There were no morphological abnormalities of the macula in patients with IOOA or in control subjects. There were no statistically significant differences in macular and subfoveal choroidal thickness between the eyes with IOOA and the eyes of the control subjects ( P ...

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    17. Using spectral-domain optical coherence tomography to detect optic neuropathy in patients with craniosynostosis

      Using spectral-domain optical coherence tomography to detect optic neuropathy in patients with craniosynostosis

      Background Detecting and monitoring optic neuropathy in patients with craniosynostosis is a clinical challenge due to limited cooperation, and subjective measures of visual function. The purpose of this study was to appraise the correlation of peripapillary retinal nerve fiber layer (RNFL) thickness measured by spectral-domain ocular coherence tomography (SD-OCT) with indication of optic neuropathy based on fundus examination. Methods The medical records of all patients with craniosynostosis presenting for ophthalmic evaluation during 2013 were retrospectively reviewed. The following data were abstracted from the record: diagnosis, historical evidence of elevated intracranial pressure, current ophthalmic evaluation and visual field results, and current ...

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    18. Comparison of iridocorneal angle in infants with retinopathy of prematurity and healthy infants using spectral domain optical coherence tomography

      Comparison of iridocorneal angle in infants with retinopathy of prematurity and healthy infants using spectral domain optical coherence tomography

      Purpose To compare measurements and morphologic characteristics of the iridocorneal angle in preterm infants with retinopathy of prematurity (ROP) and healthy infants using spectral domain optical coherence tomography (SD-OCT). Methods In this observational, case–control study, the eyes of children with ROP and healthy controls under 1 year old were imaged using SD-OCT without sedation to capture the iridocorneal angle. The ROP staging was made by a pediatric retinal specialist. The following measurements were analyzed with custom software: angle opening distance (AOD 500 ) at 500 μm; angle opening in degrees (AOG); and angle recess area (ARA 750 ). Results A total ...

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    19. Optical coherence tomography characteristics of epi-iridic membrane in a child with recurrent hyphema and presumed juvenile xanthogranuloma

      Optical coherence tomography characteristics of epi-iridic membrane in a child with recurrent hyphema and presumed juvenile xanthogranuloma

      We report a case of spontaneous hyphema in a 6-month-old girl with no history of trauma and no visible iris mass. Subtle green-blue heterochromia was noted in the right eye. The iris crypts in the right eye appeared flattened by a thin, transparent layer on the iris surface. Anterior segment optical coherence tomography (AS-OCT) disclosed a thin homogenous membrane overlying the entire iris surface in the right eye. Fluorescein angiography revealed diffuse hyperfluorescence without neovascularization. These features were suggestive of diffuse iris juvenile xanthogranuloma. Sub-Tenon's triamcinolone acetate plus topical corticosteroids eyedrops resolved the condition within 1 month

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    1-24 of 27 1 2 »
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