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1.
J Glaucoma ; 2024 Apr 05.
Article in English | MEDLINE | ID: mdl-38573897

ABSTRACT

PRECIS: There is evidence that cataract surgery can reduce intraocular pressure in patients with primary open angle-, normal tension-, or exfoliative glaucoma. The complete effect of phacoemulsification is masked by topical intraocular pressure-lowering medications. PURPOSE: To assess the impact of phacoemulsification and intraocular lens implantation on intraocular pressure (IOP) level in individuals with primary open-angle glaucoma (POAG), exfoliative glaucoma (XFG), exfoliation syndrome (XFS), normal tension glaucoma (NTG), ocular hypertension (OH) or healthy controls 12 months after the surgery. METHODS: In July 2023, a comprehensive literature review was conducted across six databases. The analysis focused on the phacoemulsification arms of randomized controlled trials (RCTs). The primary outcome of interest was the mean IOP change observed 12 months after phacoemulsification. RESULTS: This meta-analysis included nine arms from nine RCTs, comprising a total of 502 participants. Overall, the average IOP was reduced by 3.77 mmHg (95%CI: -5.55 to -1.99, I2=67.9%) 12 months after surgery. The subgroup analysis, focused on whether a washout period was employed before measuring IOP, revealed that studies with a washout period exhibited a more pronounced IOP reduction of 5.25 mmHg (95%CI: -7.35 to -3.15, I2=0%), while studies without a washout period exhibited a reduction of 3.13 mmHg (95%CI: -5.46 to -0.81, I2=75.8%). The sensitivity analysis for the latter group, excluding an outlier study, showed a reduction of 1.81 mmHg (95%CI: -2.95 to -0.67, I2=0%). CONCLUSIONS: The findings of this systematic review and meta-analysis indicate that cataract surgery meaningfully lowers IOP in POAG, XFG/XFS, or OH 12 months after surgery. However, the use of topical medications masks the precise impact of phacoemulsification upon postoperative IOP. Further research using appropriate washout periods is warranted.

2.
Eur J Ophthalmol ; : 11206721241236917, 2024 Mar 06.
Article in English | MEDLINE | ID: mdl-38449080

ABSTRACT

PURPOSE: To measure aqueous flare levels in treatment naïve eyes suffering from wet age- related macular degeneration (wAMD) treated with intravitreal brolucizumab. METHODS: Patients with treatment naïve wAMD in one eye were prospectively enrolled. Flare levels were measured with laser flare photometry at baseline, 1 day and 1 month after each of the 3 monthly injections during the loading phase. RESULTS: Twenty-two eyes from 22 patients aged 76.7 ± 6.0 years were enrolled. Flare values were 10.6 ± 3.7 photons/msec at baseline and 12.6 ± 5.8 photons/msec at the last follow up visit, 1 month after the third injection (p = 0.289, repeated measures ANOVA). The mean change in flare after the first injection was 4.2 ± 3.6. photons/msec, 6.6 ± 8.9 photons/msec after the 2nd and 8.6 ± 20.8 photons/msec after the 3rd injection (p = 0.640, repeated measures ANOVA). No patient had clinical signs of intraocular inflammation. CONCLUSIONS: Eyes receiving brolucizumab injections for wAMD showed similar flare at baseline, during and 1 month after completion of three-monthly intravitreal injections. There was no evidence of subclinical inflammation during the loading phase of brolucizumab based on laser flare photometry measurements.

3.
Ophthalmol Ther ; 12(6): 3177-3186, 2023 Dec.
Article in English | MEDLINE | ID: mdl-37733223

ABSTRACT

INTRODUCTION: The aim of this work is to compare the Corvis ST stress-strain index (SSI) and highest concavity (HC) parameters at baseline and 1 month after initiating monotherapy with prostaglandin analogues (PGs) in eyes showing visual field (VF) progression or stability. METHODS: In this prospective, single-center, observational study, newly diagnosed and treatment-naïve OAG patients were examined at baseline and 1 month after beginning monotherapy with topical PGs monotherapy. Goldmann applanation tonometry pressure readings, Corneal Hysteresis (ORA-CH), and the Corvis ST measurements were obtained at both visits. VF progression (Humphrey) was evaluated based on data from 6 years of follow-up after the baseline visit. Stress-strain index (SSI) and HC parameters in progressing (P) and non-progressing (NP) eyes were the main outcome measures. RESULTS: Sixty-three eyes were analyzed; mean age was 64.63 ± 11.26 years; 47 eyes were NP and 16 eyes were P according to the event analysis performed by the Humphrey device. There were no significant differences in IOP, CCT, or Corvis parameters between NP and P groups at baseline. Nevertheless, at 1 month, the SSI index was 1.60 ± 0.34 vs. 1.80 ± 0.34 (p = 0.003) in NP vs. P eyes, respectively. HC parameters were different between the groups at 1 month (p < 0.05) suggesting an increased scleral rigidity in the P group. There was no significant difference in IOP between groups at 1 month. CONCLUSIONS: The Corvis ST provides a corneal rigidity index (SSI) that seems to be related to VF progression when measured 1 month after initiating PGs monotherapy. Differences in HC parameters, indicative of increased scleral stiffness, are also evident at 1 month on latanoprost in the P eyes.

4.
Curr Oncol ; 30(7): 6374-6396, 2023 07 03.
Article in English | MEDLINE | ID: mdl-37504330

ABSTRACT

Uveal melanoma represents the most prevalent form of primary malignant intraocular tumor in adults. Historically, enucleation was considered the gold-standard approach in the treatment of uveal melanoma. Currently, radiotherapy is the most commonly used therapy, aiming at a better quality of life. However, radiotherapy can result in several ocular complications, some of which may be vision-threatening. Radiation-induced dry eye, scleral necrosis, cataract, rubeosis iridis, neovascular glaucoma, radiation retinopathy, maculopathy, and optic neuropathy are the most common complications. This article aims to summarize the current literature regarding the ocular complications after radiotherapy, as well as their clinical features, risk factors, and management strategies. A thorough understanding of these issues is crucial for ophthalmologists and oncologists to provide optimal patient care, improve visual outcomes, and minimize long-term complications.


Subject(s)
Melanoma , Uveal Neoplasms , Adult , Humans , Quality of Life , Uveal Neoplasms/radiotherapy , Melanoma/radiotherapy , Risk Factors
5.
Diagnostics (Basel) ; 13(4)2023 Feb 05.
Article in English | MEDLINE | ID: mdl-36832076

ABSTRACT

Glaucoma is a progressive optic neuropathy and one of the leading causes of irreversible blindness worldwide. Elevated intraocular pressure (IOP) is the major risk factor for the onset and progression of glaucoma. In addition to elevated IOP, impaired intraocular blood flow is also considered to be involved in the pathogenesis of glaucoma. Various techniques have been used to assess ocular blood flow (OBF), including Color Doppler Imaging (CDI), a technique used in ophthalmology in recent decades. This article reviews the role of CDI in both the diagnosis and effective monitoring of glaucoma progression, presenting the protocol for imaging and its advantages, as well as the limitations of its use. Moreover, it analyzes the pathophysiology of glaucoma, focusing on vascular theory and its role in the onset and progression of the disease.

6.
Cureus ; 14(6): e25995, 2022 Jun.
Article in English | MEDLINE | ID: mdl-35720776

ABSTRACT

Introduction To compare myopia progression in school-aged children of Caucasian origin wearing part-time vs. full-time full correction with single-vision spectacles. Methods This prospective, randomized controlled trial included 30 children with bilateral myopia, who received either full-time or part-time treatment with single-vision spectacle lenses. Myopia progression was assessed as the mean change in cycloplegic spherical equivalent refraction (SE), mean change in axial length (AL), and mean change in sub-foveal choroidal thickness (SChT), over a 12-month follow-up period. Results A total of 32 eyes were treated with part-time single-vision spectacles (intervention group) and 28 eyes with full-time single-vision spectacles (control group), respectively. The part-time treated group reported no spectacle use during near-work activities for a mean of 6.2 hours/day. At the 12-month assessment, there was no significant difference between part-time and full-time correction groups in mean SE change (MD: -0.05 D, 95% CI: -0.50 - 0.39 D; P 0.81), in mean AL change (MD: -0.07 mm; 95% CI: -0.20 - 0.06 mm; P 0.30), and in mean SChT change (MD: -11.45 µm; 95% CI -22.60 - 14.16 µm; P 0.67). Conclusion Myopia progression in Caucasian children treated with part-time, single-vision spectacle use was not different compared to full-time, single-vision spectacle use, over a 12-month follow-up period.

7.
Arch Public Health ; 80(1): 142, 2022 May 20.
Article in English | MEDLINE | ID: mdl-35590340

ABSTRACT

BACKGROUND: Injury remains a major concern to public health in the European region. Previous iterations of the Global Burden of Disease (GBD) study showed wide variation in injury death and disability adjusted life year (DALY) rates across Europe, indicating injury inequality gaps between sub-regions and countries. The objectives of this study were to: 1) compare GBD 2019 estimates on injury mortality and DALYs across European sub-regions and countries by cause-of-injury category and sex; 2) examine changes in injury DALY rates over a 20 year-period by cause-of-injury category, sub-region and country; and 3) assess inequalities in injury mortality and DALY rates across the countries. METHODS: We performed a secondary database descriptive study using the GBD 2019 results on injuries in 44 European countries from 2000 to 2019. Inequality in DALY rates between these countries was assessed by calculating the DALY rate ratio between the highest-ranking country and lowest-ranking country in each year. RESULTS: In 2019, in Eastern Europe 80 [95% uncertainty interval (UI): 71 to 89] people per 100,000 died from injuries; twice as high compared to Central Europe (38 injury deaths per 100,000; 95% UI 34 to 42) and three times as high compared to Western Europe (27 injury deaths per 100,000; 95%UI 25 to 28). The injury DALY rates showed less pronounced differences between Eastern (5129 DALYs per 100,000; 95% UI: 4547 to 5864), Central (2940 DALYs per 100,000; 95% UI: 2452 to 3546) and Western Europe (1782 DALYs per 100,000; 95% UI: 1523 to 2115). Injury DALY rate was lowest in Italy (1489 DALYs per 100,000) and highest in Ukraine (5553 DALYs per 100,000). The difference in injury DALY rates by country was larger for males compared to females. The DALY rate ratio was highest in 2005, with DALY rate in the lowest-ranking country (Russian Federation) 6.0 times higher compared to the highest-ranking country (Malta). After 2005, the DALY rate ratio between the lowest- and the highest-ranking country gradually decreased to 3.7 in 2019. CONCLUSIONS: Injury mortality and DALY rates were highest in Eastern Europe and lowest in Western Europe, although differences in injury DALY rates declined rapidly, particularly in the past decade. The injury DALY rate ratio of highest- and lowest-ranking country declined from 2005 onwards, indicating declining inequalities in injuries between European countries.

8.
Acta Ophthalmol ; 100(5): e1095-e1102, 2022 Aug.
Article in English | MEDLINE | ID: mdl-34532980

ABSTRACT

PURPOSE: To investigate the effects of ageing and signal strength index (SSI) on vessel density (VD) measurements of the radial peripapillary capillaries (RPC) in the optic disc, the retinal superficial (SCP) and deep (DCP) capillary plexi and the choriocapillaris (CC) of the macular area using optical coherence tomography angiography (OCT-A) imaging. METHODS: This cross-sectional study included 138 eyes from 77 healthy participants. High-definition (HD) disc Angio scan (4.5X4.5 mm) and HD Angio retina scan (6X6 mm) were acquired. Whole image (WI) VDs, inside disc (ID) VD and global and hemifield peripapillary RPC VDs were evaluated from the Angio Disc scans. Global and hemifield VD for the SCP, DCP and CC slab in the macula area were also recorded across different age groups. RESULTS: Mean age was 48.2 ± 15.0 years (range 25-82 years). Signal strength index (SSI) was 71.6 ± 7.6 in the macula and 74.6 ± 9.2 in the disc OCT-A image. VD for both SCP and DCP decreased by 0.084% and 0.188%/year (both p < 0.001). WI VD and ID VD also decreased by 0.037%/year (p = 0.005) and 0.092%/year (p < 0.001). Peripapillary RPC VD did not change with age or SSI. The effect of SSI was significant in SCP, DCP, WI RPC, ID RPC and CC VD. In the generalized estimating equation model testing for both SSI and age, SSI remained significant against SCP, DCP and ID RPC. CONCLUSION: With ageing, a decrease in VD in the SCP, DCP, WI and ID RPC, as well as in SSI, is seen. SSI and age are associated with VD changes, but only SSI is the significant variable that explains the variation in the retina microvasculature in the macula and the optic disc in multivariate analysis. In the CC, a larger SSI was associated with a lower VD. These findings underscore the importance of controlling for SSI in future studies using OCT-A.


Subject(s)
Optic Disk , Adult , Aged , Aged, 80 and over , Choroid/blood supply , Cross-Sectional Studies , Fluorescein Angiography/methods , Humans , Middle Aged , Optic Disk/blood supply , Retinal Vessels , Tomography, Optical Coherence/methods
9.
Graefes Arch Clin Exp Ophthalmol ; 260(1): 265-270, 2022 Jan.
Article in English | MEDLINE | ID: mdl-34379186

ABSTRACT

PURPOSE: To investigate the applicability of ISNT (inferior ≥ superior ≥ nasal ≥ temporal), IST (inferior ≥ superior ≥ temporal), and T min (temporal quadrant with the minimum value) rules to the peripapillary nerve fiber layer (NFL) thickness and radial peripapillary capillary (RPC) vessel density (VD) using Optical Coherence Tomography (OCT) and OCT angiography (OCT-A). MATERIALS AND METHODS: This cross-sectional study included 134 eyes of 74 healthy individuals. NFL thickness and RPC VD were measured in all four quadrants using OCT and OCT-A in order to determine the number of eyes that obey the ISNT, IST, and T min rules. RESULTS: Mean age was 48.8 ± 15.5 (range 25-82) years. The ISNT rule was valid in 52 eyes (38.81%) on OCT and only 12 eyes (8.95%) on OCT-A scans. The IST rule was followed by 83 (61.94%) and 37 (27.61%) eyes on OCT and OCT-A scans respectively. The T min rule was valid in 86 eyes (64.18%) in OCT scans and in 26 eyes (19.4%) in OCT-A scans. CONCLUSION: The topography of the RPC network does not obey the ISNT rule in healthy eyes. The ISNT rule and its variants were found to be more relevant in OCT NFL thickness measurements compared to OCT-A RPC VD measurements.


Subject(s)
Optic Disk , Tomography, Optical Coherence , Adult , Aged , Aged, 80 and over , Cross-Sectional Studies , Fluorescein Angiography , Humans , Middle Aged , Nerve Fibers , Retinal Ganglion Cells , Retinal Vessels/diagnostic imaging
10.
Eur J Ophthalmol ; : 11206721211054731, 2021 Oct 19.
Article in English | MEDLINE | ID: mdl-34664511

ABSTRACT

PURPOSE: To report acute visual acuity loss in a pregnant woman with nephrotic syndrome. CASE REPORT: A 34-year-old pregnant woman was referred to our service for acute, bilateral visual impairment, associated with bilateral below knee edema (BKE). Best-corrected visual acuity (BCVA) was hand motion in the right eye and 20/200 in the left eye. Dilated fundus exam disclosed multiple pigment epithelium detachments involving the macula in both eyes. After consultation with a nephrologist a diagnosis of nephrotic syndrome was made. Unfortunately, a week later she lost the fetus. At follow-up evaluation, 20 days after the miscarriage, BCVA improved to 20/25 in both eyes with near normal restoration of the retinal anatomy. CONCLUSION: In nephrotic syndrome, sequestration of interstitial fluids, which leads to classic generalized edema, could be the origin of interstitial accumulation of fluids in the retinal and subretinal layers. Increased awareness by the gynaecologists and prompt treatment may prevent fetus miscarriage.

11.
Int Ophthalmol ; 41(11): 3641-3650, 2021 Nov.
Article in English | MEDLINE | ID: mdl-34169359

ABSTRACT

PURPOSE: To assess anterior segment anatomic parameters in school-aged children with spontaneously regressed retinopathy of prematurity (sr-ROP) and in children born preterm without ROP history (preT). METHODS: sr-ROP and preT children were compared with healthy, born at term children (control group). Biometric characteristics were measured with the IOLMaster. Iridocorneal angle structure was evaluated using Visante AS-OCT, and angle opening distance, trabecular iris space area and scleral spur angle were calculated. Best-corrected visual acuity (BCVA) was measured with the ETDRS chart. RESULTS: We examined 22 eyes of 11 children with sr-ROP, 26 eyes of 13 preT children and 24 eyes of 12 healthy controls, with a median age of 8 years. sr-ROP children exhibited worse mean BCVA and reduced AL compared to controls (p = 0.001 and p = 0.007, respectively). A narrower iridocorneal angle was found in sr-ROP compared to the preT and the control groups. Preterm children were found to have similar anterior chamber angle metrics compared to the full-term control group. CONCLUSION: In this study, school-aged children with a history of sr-ROP had narrower angles compared to preterm- and term-born children. AS-OCT demonstrated structural differences of the iridocorneal angle in sr-ROP, possibly reflecting a mild developmental arrest of the anterior segment.


Subject(s)
Retinopathy of Prematurity , Anterior Chamber/diagnostic imaging , Biometry , Child , Humans , Infant, Newborn , Iris/diagnostic imaging , Retinopathy of Prematurity/diagnosis , Tomography, Optical Coherence
12.
Int Ophthalmol ; 41(10): 3515-3522, 2021 Oct.
Article in English | MEDLINE | ID: mdl-34173151

ABSTRACT

PURPOSE: The purpose of this study is to report the clinical manifestations and treatment outcomes in three patients diagnosed with vasoproliferative tumors (VPTs). METHODS: A retrospective, single-center case series was conducted, and retinal findings from three cases were documented by clinical examination and multimodal imaging. RESULTS: Three patients presented with an elevated, yellow-white retinal lesion located at the peripheral retina and extensive retinal exudation. All three patients were closely monitored, and tumor-associated features included lipid exudates, cystoid macular edema (CMO), pre-retinal fibrosis and epi-retinal membrane (ERM). Clinical management relied on observation, cryotherapy, laser photocoagulation, intravitreal steroids and anti-vascular endothelial growth factor (anti-VEGF) treatment. Despite different clinical courses, two patients underwent vitreo-retinal surgery to address VPT-related complications of macular hole and vitreo-macular traction, whereas a patient underwent phacoemulsification to treat steroid-induced cataract. CONCLUSION: VPTs are uncommon benign vascular tumors and usually located at the infero-temporal peripheral retina. Close observation and early diagnosis of VPTs are of great importance in preventing vision-threatening complications and ensuring the best final visual outcome. The optimal treatment has yet to be defined due to lack of multi-center clinical studies. Despite the availability of less invasive therapeutic interventions, however, our case series show that pars plana vitrectomy is sometimes the most appropriate choice to restore visual acuity.


Subject(s)
Macular Edema , Retinal Perforations , Humans , Macular Edema/surgery , Retrospective Studies , Visual Acuity , Vitrectomy
13.
Am J Ophthalmol Case Rep ; 23: 101116, 2021 Sep.
Article in English | MEDLINE | ID: mdl-34041416

ABSTRACT

PURPOSE: To present a case of unilateral retinal pigment epithelium dysgenesis (URPED) complicated with tractional retinal detachment and macular hole formation, and highlight the successful anatomical and functional restoration following surgical repair. To conduct an updated review of the literature. OBSERVATIONS: A 16-year-old asymptomatic female presented with a unilateral atypical peripapillary lesion of the retinal pigment epithelium (RPE) in the left eye. At baseline, best corrected visual acuity (BCVA) was 20/20 and anterior segment examination was unremarkable. Fundus examination revealed an irregularly shaped atrophy of the RPE adjacent to the optic disc with scalloped border of RPE hyperplasia and a fibroglial proliferation in the overlying retina. Optical coherence tomography demonstrated mild changes of the RPE and the outer retina layers. Three years after initial diagnosis, the patient was referred to our clinic due to blurry vision. Complete ophthalmological evaluation revealed tractional retinal detachment with full thickness macular hole formation. Pars plana vitrectomy with epiretinal membrane removal and internal limiting membrane peeling led to anatomical recovery of the macular area with BCVA of 20/32 at four-months postoperatively. CONCLUSIONS AND IMPORTANCE: This is the first report of tractional retinal detachment and macular hole as rare complications of URPED. Systematic follow-up examinations seem to be essential for the prevention of permanent visual loss, whereas prompt surgical intervention can contribute to visual acuity restoration in complicated cases.

14.
Ocul Immunol Inflamm ; 29(5): 926-931, 2021 Jul 04.
Article in English | MEDLINE | ID: mdl-31951761

ABSTRACT

Purpose: To compare foveal avascular zone density (FAZ) in the superficial (SCP) and deep (DCP) capillary plexus and vessel density (VD) in the macula in eyes with diabetic macular edema (DME) treated with intravitreal aflibercept.Methods: Patients with DME were imaged at baseline, and 30 days after the 1st, 2nd and 3rd intravitreal aflibercept injection. Images were analyzed for the FAZ area in the SCP and DCP in each visit and VD.Results: Twenty eyes were enrolled. FAZ was 0.304 ± 0.131 mm2 in the SCP and 0.738 ± 0.5836 mm2 in the DCP at baseline. SCP FAZ was not significantly different whereas, FAZ in the DCP decreased (p = .035) after treatment. VD in the center was 20.62 ± 4.31 at baseline and decreased by 8% (p = .002). Parafoveal VD remained unchanged with treatment.Conclusion: DCP ischemia may improve after aflibercept treatment. Central macular vessel density was found to decrease post-treatment, but the clinical relevance needs further investigation.


Subject(s)
Angiogenesis Inhibitors/therapeutic use , Diabetic Retinopathy/drug therapy , Ischemia/physiopathology , Macula Lutea/blood supply , Macular Edema/drug therapy , Receptors, Vascular Endothelial Growth Factor/therapeutic use , Recombinant Fusion Proteins/therapeutic use , Retinal Vessels/physiopathology , Aged , Capillaries/physiopathology , Computed Tomography Angiography , Diabetic Retinopathy/physiopathology , Female , Humans , Intravitreal Injections , Macular Edema/physiopathology , Male , Middle Aged , Pilot Projects , Tomography, Optical Coherence , Vascular Endothelial Growth Factor A/antagonists & inhibitors , Visual Acuity
15.
Eye (Lond) ; 35(5): 1411-1417, 2021 May.
Article in English | MEDLINE | ID: mdl-32612173

ABSTRACT

PURPOSE: To assess optical coherence tomography angiography (OCTA) parameters in children born preterm who developed spontaneously regressed retinopathy of prematurity (sr-ROP, group 1), or had no ROP (PreT, group 2), compared with term-born age-matched controls (group 3). METHODS: Cross-sectional comparative case series. Children aged 6-8 years had a complete ocular examination and OCT and OCTA imaging (Optovue RTVue AVANTI instrument). Foveal avascular zone (FAZ) area, FAZ perimetry, and vascular density in three slabs were measured automatically, and foveal depth was measured manually by two graders. RESULTS: Groups 1, 2, and 3 (26, 32, and 34 eyes respectively) did not differ in age or gender, but differed in gestational age and birth weight. Both inner retinal thickness and foveal depth differed significantly between group 1 and 2, as did vascular density in the superficial and deep vascular plexus. VA, FAZ area, and perimetry were distinct in all three groups. VA correlated positively with FAZ area and foveal depth, negatively with vascular density. CONCLUSION: OCTA parameters reveal microvascular changes that distinguish eyes with sr-ROP from premature eyes without ROP, as does visual acuity. It is not possible to infer if the cause is the presence of retinopathy or the different severity of retinal immaturity.


Subject(s)
Retinopathy of Prematurity , Tomography, Optical Coherence , Child , Cross-Sectional Studies , Fluorescein Angiography , Fovea Centralis , Fundus Oculi , Humans , Infant, Newborn , Retinal Vessels/diagnostic imaging , Retinopathy of Prematurity/diagnostic imaging , Retrospective Studies
16.
Surv Ophthalmol ; 66(2): 261-275, 2021.
Article in English | MEDLINE | ID: mdl-32634443

ABSTRACT

The involvement of the choroid in ocular growth regulation has been postulated in studies showing that refractive errors correlate with alterations in choroidal thickness (ChT). The advent of optical coherence tomography imaging has enabled qualitative and quantitative assessment of the choroid. In children, ChT changes correlate with a number of ocular pathologies, including myopia, retinopathy of prematurity, and amblyopia. We synthesize mechanisms and evidence regarding choroidal thickness variation during childhood. Subfoveal ChT is influenced by a number of factors including age, ethnicity, gender, axial length, and intraocular pressure. Myopic eyes have thinner choroids compared to emmetropic and hyperopic eyes. ChT may in fact serve as a marker of myopic progression, as ChT thinning occurs early during myopic development, but this association has not been established quantitatively. In addition, subfoveal ChT appears thicker in amblyopic eyes, while prematurity and retinopathy of prematurity may be associated with thinner ChT. Overall, both animal models and clinical research indicate that ChT induces or reflects physiological changes in the eye pertaining to ocular growth or maturation.


Subject(s)
Hyperopia , Myopia , Refractive Errors , Choroid/pathology , Humans , Hyperopia/pathology , Tomography, Optical Coherence/methods
17.
Eur J Ophthalmol ; 31(5): NP44-NP47, 2021 Sep.
Article in English | MEDLINE | ID: mdl-32403943

ABSTRACT

INTRODUCTION: Aim of this study is to present the acute and long-term swept-source optical coherence tomography angiography findings in pediatric commotio retinae. MATERIALS AND METHODS: Two children presented with reduced visual acuity and Berlin edema after blunt trauma. RESULTS: Swept-source optical coherence tomography revealed hyperreflectivity of the retinal nerve fiber layer and disruption of the ellipsoid zone and the retinal pigment epithelium. Swept-source optical coherence tomography angiography showed enlarged superficial foveal avascular zone in both cases. In the more severe case, there was enlargement of both superficial and deep foveal avascular zone, and reduction of the superficial vascular plexus density. CONCLUSION: The present findings suggest that pediatric commotio retinae may be associated with retinal vascular changes, that is, foveal avascular zone enlargement and decreased vessel density. The extent of the microvascular alterations is possibly related to trauma severity.


Subject(s)
Eye Injuries , Macula Lutea , Child , Eye Injuries/diagnosis , Fluorescein Angiography , Humans , Retina/diagnostic imaging , Retinal Vessels/diagnostic imaging , Tomography, Optical Coherence
18.
Cureus ; 12(5): e8294, 2020 May 26.
Article in English | MEDLINE | ID: mdl-32601568

ABSTRACT

A 33-year-old female was referred to the ophthalmology department after an accidental eye injury to her right eye during a hair removal session using alexandrite laser. Although she initially experienced no symptoms, when re-examined one and a half months later the best-corrected visual acuity (BCVA) of the affected eye was 20/40 secondary to choroidal neovascularization confirmed by fluorescein angiography (FA) and optical coherence tomography (OCT). Intravitreal anti-vascular endothelial growth factor (VEGF) therapy (three monthly injections of aflibercept) led to complete regression of the neovascularization and functional recovery which was maintained at one-year follow-up post original injury.

19.
Ocul Oncol Pathol ; 6(1): 74-78, 2020 Jan.
Article in English | MEDLINE | ID: mdl-32002409

ABSTRACT

PURPOSE: To present the natural course and describe the characteristic findings of a case of unilateral retinal pigment epithelium dysgenesis (URPED) and highlight the optical coherence tomography angiography characteristics of this rare fundus pattern. METHODS: Case report. RESULTS: A 52-year-old male was referred 8 years ago to our clinic due to a distinctive unilateral lesion in his left fundus, of which he was aware from early adulthood. Clinical evaluation revealed an irregularly shaped patch of retinal pigment epithelium atrophy surrounding his left optic nerve, with a characteristic scalloped border and with severe distortion of the overlying retinal and vascular tissue. Retinal pigment epithelial hyperplasia was noted in the margin as well as in distinct lacunae clustered around the periphery of the lesion. Right fundus examination was normal. The patient was diagnosed with URPED and was followed annually with multimodal imaging ever since. No choroidal neovascularization or other complication was noted. However, the lesion appeared to slowly but steadily grow to eventually affect the foveal region causing severe visual loss. Best corrected visual acuity was 20/40 at baseline and 20/200 at last follow-up 8 years after the original diagnosis. CONCLUSION: URPED is a rare retinal disease with unique clinical characteristics that can progress relentlessly even in the absence of secondary complications.

20.
Ocul Immunol Inflamm ; 28(7): 1060-1065, 2020 Oct 02.
Article in English | MEDLINE | ID: mdl-31944150

ABSTRACT

Purpose: The role of HIV infection in exogenous and endogenous endophthalmitis has not been clarified. We aim to assess the potential role of HIV as a risk factor or a poor prognostic feature in this sight-threatening condition. Methods: Literature review. Review of evidence: Evidence for endophthalmitis in HIV patients is based on scarce retrospective case series and case reports. Infrequency of literature on this topic is owed to the diversity of the different types of endophthalmitis as well as the rarity of the coexistence of the two conditions. Conclusions: Endophthalmitis in HIV patients are a rare but potentially devastating condition. Many forms of endophthalmitis tend to occur in severely immunosuppressed HIV patients with low CD4 counts. Therefore, the early introduction of cART with full immune reconstitution is an essential part of the prevention of endophthalmitis in the HIV population.


Subject(s)
Endophthalmitis/etiology , Eye Infections, Bacterial/etiology , Eye Infections, Fungal/etiology , HIV Infections/complications , Anti-Bacterial Agents/therapeutic use , Endophthalmitis/drug therapy , Eye Infections, Bacterial/drug therapy , Eye Infections, Fungal/drug therapy , Humans , Retrospective Studies , Risk Factors
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