Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 9 de 9
Filter
1.
Acta Ophthalmol ; 2023 Nov 22.
Article in English | MEDLINE | ID: mdl-37991127

ABSTRACT

PURPOSE: To investigate central retinal morphology and optic retinal nerve fibre layer (RNFL) in prematurely born young adults and compare to term born controls. MATERIALS AND METHODS: The participants were 59 prematurely born individuals, with a birthweight ≤1.500 g, and 44 term born controls, all 25-29 years of age. Visual acuity (VA) and contrast sensitivity (CS) were assessed. The retinal macular thickness, ganglion cell-inner plexiform layer (GC-IPL) thickness and RNFL thickness were assessed with Cirrus optical coherence tomography (OCT). RESULTS: Central macular thickness was increased (mean 26.7 µm) in prematurely born individuals compared to controls. The macular GC-IPL was thinner (mean 3.84 µm), also when excluding those with previous retinopathy of prematurity (ROP) and those with neurological complications. Gestational age at birth and previous treatment of ROP were risk factors for a thicker macula, however, not for reduced GC-IPL. The average peripapillary RNFL was thinner (mean 4.61 µm) in the prematurely born individuals, also when excluding those with previous ROP and/or neurological complications. Within the prematurely born group, treated ROP was correlated with increased average RNFL. Further, both better VA and CS were associated with thinner optic nerve RNFL and thicker average GC-IPL. CONCLUSION: Macular and optic nerve morphology were influenced by premature birth as assessed with OCT in adult individuals. Gestational age at birth and treatment for ROP seemed to affect central macular thickness, and treated ROP affected the peripapillary RNFL. Thus, retinal sequelae remained in adulthood.

2.
Acta Ophthalmol ; 100(2): 189-195, 2022 Mar.
Article in English | MEDLINE | ID: mdl-33528099

ABSTRACT

PURPOSE: To evaluate refraction and its development in young adults born prematurely, screened for retinopathy of prematurity, and to compare with individuals of the same age born at term. MATERIALS AND METHODS: The participants were 59 preterms, with a birthweight of ≤ 1500 g, and 43 term-born controls, all born during 1988-1990. The refraction was measured in cycloplegia, and the spherical equivalent (SE) was calculated. The axial length (AL), anterior chamber depth and corneal radius (CR) were measured, and the AL/CR ratio was calculated. RESULTS: The mean SE was -0.5 dioptres (D) (SD 2.5) in right eyes (REs) and -0.4 D (SD 2.3) in left eyes (LEs) of preterms, and -0.2 D (SD 1.5) in REs and -0.2 D (SD 1.5) in LEs of controls. The distribution of refraction was wider in the preterm group compared to the control group. In the preterm group, 12% had a SE ≥ 1.5 D, but none of the controls. Ten preterms, but none of the controls, had anisometropia ≥ 1.0 D. The prevalence of astigmatism ≥ 1.0 D was higher in preterms than controls. The SE decreased around 1 D in both preterms and controls from 10 to 25 years of age. The AL and CR were shorter in the preterms; however, the AL/CR ratio was similar in both groups. Within the preterm group, cryotherapy was correlated with astigmatism, but not with SE and anisometropia at this age. CONCLUSION: Prematurely born individuals had higher prevalence of refractive errors in young adulthood compared to term-born controls.


Subject(s)
Refraction, Ocular , Refractive Errors/epidemiology , Retinopathy of Prematurity/epidemiology , Adult , Case-Control Studies , Child , Child, Preschool , Female , Humans , Infant , Infant, Newborn , Infant, Premature , Infant, Very Low Birth Weight , Longitudinal Studies , Male , Refractive Errors/etiology , Retinopathy of Prematurity/diagnosis , Retinopathy of Prematurity/therapy
3.
Acta Ophthalmol ; 100(3): e791-e797, 2022 May.
Article in English | MEDLINE | ID: mdl-34313013

ABSTRACT

PURPOSE: The aim of the study was to evaluate strabismus, stereoacuity, accommodation and convergence in prematurely born young adults; screened for retinopathy of prematurity in the neonatal period and compare with term-born individuals of the same age. MATERIALS AND METHODS: The study participants included 59 prematurely born individuals with a birthweight of ≤1,500 grams and 44 term-born controls, all born during 1988-1990 in Stockholm County, Sweden. Ocular alignment was assessed with a cover test, stereoacuity with the TNO stereo test and the amplitude of accommodation and the near point of convergence with the Royal Air Force Rule. RESULTS: Seven of 59 (12%) preterms had manifest strabismus, 4/59 (7%) had esotropia and 3/59 (5%) exotropia. One of 44 (2%) controls had esotropia; no other controls had manifest strabismus. Stereoacuity was within normal limits in 38/59 (64%) preterms and 43/44 (98%) controls, p < 0.01; the difference remained after excluding those with strabismus. A neurological complication at 2.5 years of age was the strongest risk factor for subnormal stereoacuity within the preterm group after excluding those with strabismus. The mean amplitude of accommodation was poorer in the preterms than the controls in better (p < 0.05) and worse eyes (p < 0.05). The preterms were more likely to have an amplitude of accommodation below the minimum, according to Hofstetter's equation. There were no differences between the groups regarding the near point of convergence. CONCLUSION: Prematurely born young adults had a higher prevalence of strabismus, reduced stereoacuity and worse amplitude of accommodation than term-born controls.


Subject(s)
Esotropia , Retinopathy of Prematurity , Strabismus , Accommodation, Ocular , Esotropia/complications , Humans , Infant, Newborn , Retinopathy of Prematurity/complications , Retinopathy of Prematurity/diagnosis , Retinopathy of Prematurity/epidemiology , Strabismus/epidemiology , Visual Acuity , Young Adult
4.
Childs Nerv Syst ; 37(12): 3891-3895, 2021 12.
Article in English | MEDLINE | ID: mdl-34136944

ABSTRACT

Acute disseminated encephalomyelitis (ADEM) is an immune-mediated demyelinating central nervous system disorder with predilection for early childhood. Delayed onset of ADEM is rare, and herein we present a previously healthy 5-year-old boy, with an unusual clinical course of ADEM with high intracranial pressure (ICP) and acute visual loss that was at first diagnosed as idiopathic intracranial hypertension without papilledema (IIHWOP). The boy underwent acute neurosurgical intervention with ventriculoperitoneal (VP) shunt using Miethke valve and sensor reservoir system and received high-dose steroid treatment with symptom relieve within days. This is the first case report using this system in such a young child, and we find it feasible and valuable also in younger children when VP shunt with ICP measurement is indicated.


Subject(s)
Encephalomyelitis, Acute Disseminated , Pseudotumor Cerebri , Child , Child, Preschool , Encephalomyelitis, Acute Disseminated/diagnostic imaging , Feasibility Studies , Humans , Intracranial Pressure , Male , Ventriculoperitoneal Shunt
5.
Acta Paediatr ; 110(1): 127-133, 2021 01.
Article in English | MEDLINE | ID: mdl-32473041

ABSTRACT

AIM: To assess visual-motor integration in young adults previously included in a prospective study on the incidence of retinopathy of prematurity (ROP). METHODS: The study encompassed 59 preterm individuals, born 1988-1990, with a birth weight ≤1500 g, and 44 full-term controls, aged 25-29 years. Ophthalmological examination, including visual acuity and contrast sensitivity, and the Beery Visual-Motor Integration (VMI) with supplemental tests of visual perception and motor coordination, were performed. A short questionnaire was filled in. RESULTS: The preterm individuals had significantly lower scores than the controls in all VMI tests, median values and interquartile ranges: Beery VMI 87 (21) vs 103 (11), visual perception 97 (15) vs 101 (8) and motor coordination 97 (21) vs 102 (15), respectively. Within the preterm group, no correlations were found between the VMI tests and ROP, gestational age, birth weight or visual acuity. Contrast sensitivity was correlated to visual perception. Neurological complication at 2.5 years was a risk factor for lower scores on Beery VMI. The preterm subjects reported six times as many health problems as compared to the controls. CONCLUSION: Being born preterm seemed to have life-long effects. This study shows that visual-motor integration was affected in young adults born preterm.


Subject(s)
Retinopathy of Prematurity , Adult , Gestational Age , Humans , Infant, Newborn , Prospective Studies , Retinopathy of Prematurity/diagnosis , Retinopathy of Prematurity/epidemiology , Visual Acuity , Visual Perception , Young Adult
6.
Br J Ophthalmol ; 104(4): 541-546, 2020 04.
Article in English | MEDLINE | ID: mdl-31302630

ABSTRACT

AIMS: To assess visual function in young adults born preterm and compare with full-term individuals of the same age. METHODS: Young adults, born preterm (birth weight ≤1500 g) in 1988-1990, previously included in a population-based study on the incidence of retinopathy of prematurity (ROP) in Stockholm County, Sweden were included. A control group of participants born at term, in the same area during the same time period, was used for comparison. Best-corrected visual acuities were assessed at distance and near with logMAR charts. Distance visual acuity was also measured with single symbols to calculate crowding. Visual fields were measured with Humphrey 24-2 and the mean deviation was noted. Contrast sensitivity was assessed with Vistech contrast sensitivity test and the area under the curve was calculated. RESULTS: Fifty-nine preterm (females 37) and 44 full-term (females 18) individuals were included. All individuals were between 25 and 29 years of age. Preterm individuals had significantly lower distance visual acuity (mean -0.08 (SD 0.11) vs -0.14 (SD 0.07) logMAR, p=0.009), near visual acuity (mean -0.08 (SD 0.11) vs -0.13 (SD 0.06) logMAR, p=0.049), mean deviation (mean -1.09 (SD 1.13) vs -0.80 (SD 1.03) dB, p=0.05) and contrast sensitivity (mean 2.02 (SD 0.19) vs 2.16 (SD 0.14), p<0.001) in the better eye compared with full-term individuals. The differences in distance visual acuity and contrast sensitivity were also evident after excluding persons with previous ROP and neurological complications. In multivariable analyses, treated ROP was a risk factor for reduced near visual acuity and visual fields. CONCLUSION: Visual function seems to be reduced in prematurely born individuals even in adulthood. The reason may be prematurity per se since individuals without previous ROP or neurological complications are also affected. SYNOPSIS: Visual function, assessed as visual acuity, visual fields and contrast sensitivity, was reduced in young adults born preterm and previously included in a population-based study on the incidence of retinopathy of prematurity, as compared with controls.


Subject(s)
Contrast Sensitivity/physiology , Infant, Premature , Retinopathy of Prematurity/physiopathology , Vision Disorders/physiopathology , Visual Acuity/physiology , Visual Fields/physiology , Adult , Birth Weight , Female , Follow-Up Studies , Gestational Age , Humans , Male , Term Birth , Visual Field Tests
7.
J Ocul Pharmacol Ther ; 30(1): 35-41, 2014 Feb.
Article in English | MEDLINE | ID: mdl-24205991

ABSTRACT

PURPOSE: To test a new drug delivery platform with dorzolamide γ-cyclodextrin (γCD) nanoparticle eye drops for intraocular pressure (IOP) control and safety and compare with Trusopt.(®) METHODS: Self-aggregating γCD nanoparticle eye drops containing 3% dorzolamide were given once a day (QD) and compared with Trusopt given three times a day (TID) in a prospective randomized single masked crossover trial over 24 h. Seventeen subjects with IOP over 18 mmHg were recruited. IOP was measured with an Icare Tonometer Pro.(®) RESULTS: There was no statistically significant difference in the IOP lowering effect of dorzolamide nanoparticle eye drops QD and Trusopt TID. At peak (4 h), the IOP reduction from baseline was 3.8±2.6 mmHg (18%, P<0.05) in the nanoparticle eye drop group and 3.1±3.7 mmHg in the Trusopt group (14%, P<0.05, P=0.97 between groups). At trough (24 h), the IOP reduction was 1.4±2.8 mmHg (6%, P>0.05) in nanoparticle eye drop group and 1.5±2.0 mmHg (7%, P>0.05) in the Trusopt group (P=0.23 between groups). Burning sensation measured on the visual analogue scale (1-100) was less from the nanoparticle eye drops (12±15) than from the Trusopt (37±30), (P=0.0038). Visual acuity and conjunctival hyperemia did not differ between the two groups. CONCLUSIONS: Dorzolamide cyclodextrin nanoparticle eye drops QD lower IOP and the effect seems comparable to Trusopt given TID. The nanoparticle eye drops are well tolerated and seem to have a better safety profile than Trusopt.


Subject(s)
Carbonic Anhydrase Inhibitors/pharmacology , Intraocular Pressure/drug effects , Sulfonamides/pharmacology , Thiophenes/pharmacology , gamma-Cyclodextrins/chemistry , Carbonic Anhydrase Inhibitors/administration & dosage , Carbonic Anhydrase Inhibitors/adverse effects , Cross-Over Studies , Drug Delivery Systems , Female , Humans , Male , Nanoparticles , Ophthalmic Solutions , Pilot Projects , Prospective Studies , Single-Blind Method , Sulfonamides/administration & dosage , Sulfonamides/adverse effects , Thiophenes/administration & dosage , Thiophenes/adverse effects , Tonometry, Ocular , Visual Acuity
8.
Clin Exp Rheumatol ; 31(5): 711-6, 2013.
Article in English | MEDLINE | ID: mdl-23711303

ABSTRACT

OBJECTIVES: The aim of the present study was to evaluate whether certain HLA antigens were risk factors for developing sarcoid arthritis and whether HLA antigens appear to account for the phenotype and the resolution of the arthritis condition in an unselected nationwide cohort. METHODS: The Icelandic Sarcoidosis Study (ISS) contains all tissue-verified cases of sarcoidosis in Iceland since 1981. Of a total of 234 cases, 39 patients were identified with arthritis and of those 36 delivered a biosample for the study. The patient cohort has previously been described in detail. DNA was isolated from EDTA blood and HLA antigen typing was performed. A total of 544 Icelandic stem cell donors acted as controls. RESULTS: HLA-B8 and HLA-B14 antigens were more common among those who suffered from sarcoid arthritis (24% vs. 11%, p<0.01; 6.5% vs. 2.4%, p<0.05). DRB1*03 was also found more frequently in patients with sarcoid arthritis compared to controls (28% vs. 11%, p<0.001), while DRB1*04 was less frequently reported (5.6% vs. 17%, p<0.01). No differences were found in the HLA-A distribution between the groups. A higher proportion of patients with chronic arthritis had HLA-A11 than those with resolving joint problems (60% vs. 3.8%). CONCLUSIONS: Our nationwide study of patients with sarcoid arthritis further supports the conclusion that genetics may strongly influence the development and the clinical course of the disease. Furthermore, some HLA antigens may even be protective for the disease. Thus, classification of the major histocompatibility complex may have clinical implications.


Subject(s)
Arthritis/genetics , HLA-A Antigens/genetics , HLA-B Antigens/genetics , Sarcoidosis/genetics , Adult , Arthritis/blood , Arthritis/epidemiology , Arthritis/immunology , Case-Control Studies , Female , Gene Frequency , Genetic Predisposition to Disease , Humans , Iceland/epidemiology , Male , Middle Aged , Phenotype , Risk Factors , Sarcoidosis/blood , Sarcoidosis/epidemiology , Sarcoidosis/immunology
9.
Sarcoidosis Vasc Diffuse Lung Dis ; 24(2): 113-20, 2007 Sep.
Article in English | MEDLINE | ID: mdl-18496981

ABSTRACT

STUDY OBJECTIVE: The Icelandic Sarcoidosis Study (ISS) contains all tissue-verified cases of sarcoidosis in Iceland since 1981. The present study has extended registration and verification to the start of 2004, thus covering over 23 years and a total of 234 cases. The aim of this study was to elucidate the prevalence, clinical manifestation and long-term prognosis of sarcoid arthritis in this unselected nationwide cohort. The presence of joint or muscle symptoms was registered in 20% of these cases. METHODS: We used a questionnaire to register the lung and joint symptoms and all participants were offered a clinical evaluation with standardized interview and physical examination, including a count of the number of painful and/or inflamed joints. RESULTS: Forty-seven (20%) of the 234 individuals in the ISS reported skeletal symptoms. In thirty-nine cases (17%) it was possible to confirm a history of inflammatory joint disorder. The mean age was 45 years: women 46 years (30-66), men 43 years (28-66). In 82% of the cases one or both ankles were involved. In 22 or 56% of the cases (13 female and 9 male) reliable data on the disease course were obtained; 87% of the patients had full recovery in less than 6 months, while 13% of the patients (all female) experienced chronic arthritic disease. CONCLUSIONS: Our nationwide-based data confirmed that around a fifth of all those diagnosed with sarcoidosis will develop joint symptoms associated with their sarcoidosis, most usually in the ankle. The prognosis is favourable, but a subgroup of female patients may develop chronic polyarthritis. It is urgent to study further in detail the risk factors for a chronic arthritic condition in sarcoidosis; thus, it would be possible to offer those at risk of arthritis modifying anti-rheumatic treatment in the early phase of their disease course.


Subject(s)
Arthritis/epidemiology , Sarcoidosis/epidemiology , Adult , Aged , Arthritis/diagnosis , Cohort Studies , Female , Humans , Iceland/epidemiology , Incidence , Male , Middle Aged , Prevalence , Prognosis , Registries , Sarcoidosis/diagnosis , Surveys and Questionnaires
SELECTION OF CITATIONS
SEARCH DETAIL
...