| 1. |
- Burstedt, Marie S, et al.
(författare)
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Associations between specific measures of vision and vision-related quality of life in patients with bothnia dystrophy, a defined type of retinitis pigmentosa.
- 2005
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Ingår i: Retina. - : Lippincott, Williams & Wilkins. - 0275-004X .- 1539-2864. ; 25:3, s. 317-323
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE: To assess the relationship between objective tests of visual function and vision-related quality of life in patients with Bothnia dystrophy (BD), a retinal dystrophy of retinitis pigmentosa type with progressive maculopathy. METHODS: Forty-nine patients were tested. Weighted distance logMAR visual acuity (WVA), weighted logMAR low contrast VA (WCS), and binocular visual field (VF) areas were calculated. Vision-related quality of life (VRQL) was assessed using the 25-item National Eye Institute-Visual Function Questionnaire (NEI-VFQ-25). Correlation statistics were used and adjusted analyses of the relationship between the composite score and the objective visual function tests were performed with multiple linear regression. RESULTS: VRQL was significantly correlated with age, WVA, WCS, and binocular VF areas (P < 0.001). Calculation of partial correlation coefficients showed age to be significantly correlated only with VF (V-4-e) area (P < 0.0001). Multiple linear regression analyses revealed age and WVA to be significantly associated with the NEI-VFQ-25 composite score (P < 0.02 and P = 0.001, respectively). WVA alone was the strongest predictor of self-reported experience of total visual function in BD patients (r 2= 0.69). CONCLUSIONS: A strong relationship between objective tests of visual function and patient perceived VRQL as assessed by a questionnaire was found. WVA was the strongest predictor and together with age explained almost 70% of the variability of the composite score of the questionnaire.
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| 2. |
- Czajka, Marcin Piotr, et al.
(författare)
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Outcomes after combined 1.8-MM microincision cataract surgery and 23-gauge transconjunctival vitrectomy for posterior segment disease : a retrospective study
- 2014
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Ingår i: Retina. - : Lippincott Williams & Wilkins. - 0275-004X .- 1539-2864. ; 34:1, s. 142-148
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE:The aim of the study was to retrospectively review indications, intraoperative and postoperative complications, and outcomes of combined coaxial microincision cataract surgery and 23-gauge vitrectomy for posterior segment disease.METHODS:The outcomes and findings of surgery in 50 patients (50 eyes) who underwent coaxial microincision cataract surgery and foldable intraocular lens implantation combined with 23-gauge vitrectomy for a variety of indications between January 2010 and March 2012.RESULTS:No posterior capsule tear was observed during surgery. Intraoperatively, a retinal break was found in 9 eyes (18%), which were successfully treated with laser and/or cryotherapy. Corneal suture was done in 6 eyes (12%), 5 of them left and 1 right. Sclerotomy was sutured in 2 left and 2 right eyes, respectively, a total of 4 eyes (8%). In 1 case, 23-gauge vitrectomy was converted to 20-gauge vitrectomy. The postoperative intraocular pressure (millimeters of mercury, mean ± standard deviation) was 16.7 ± 9.8. Hypotony (intraocular pressure < 9 mmHg) occurred in 9 eyes (18%). In 1 eye (2%) posterior iris synechia were observed 2 weeks after surgery, and intraocular pressure was >40 mmHg. Intraocular pressure was normalized after Nd:YAG laser iridotomy. Fibrin reaction in the anterior chamber was observed in 1 eye (2%) Day 1 after surgery. Posterior capsule opacification, which required Nd:YAG laser capsulotomy, was observed in 11 eyes (22%) during the follow-up.CONCLUSION:Combined sutureless coaxial microincision cataract surgery and 23-gauge vitrectomy offers the advantages of both coaxial microincision cataract surgery (less wound leakage, good anterior chamber stability, and safety) and 23-gauge vitrectomy (decreased inflammation and faster rehabilitation after surgery).
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| 3. |
- Czajka, Marcin P., et al.
(författare)
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Technique for Sutured Scleral Fixation of One-Piece Hydrophobic Acrylic Intraocular Lenses Dislocated Into the Vitreous
- 2023
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Ingår i: Retina. - : LIPPINCOTT WILLIAMS & WILKINS. - 0275-004X .- 1539-2864. ; 43:8, s. 1413-1416
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Tidskriftsartikel (refereegranskat)abstract
- Purpose:To present a suturing technique for safe refixation of posteriorly dislocated one-piece hydrophobic acrylic intraocular lenses (IOLs).Method:Retrospective data analysis of a series of 12 cases operated with vitrectomy, followed by IOL relocation to the retropupillary area, after which polypropylene sutures are passed through the optic-haptic junctions of the dislocated IOL and subsequently secured to the sclera.Results:In all cases, the IOL remained centered throughout the follow-up period (mean 10.5 months, range 3 weeks-36 months). One case was complicated by vitreous hemorrhage the first postoperative day and later cystoid macular edema. Visual acuity was not compromised at the end of follow-up.Conclusion:The presented technique is safe and provides long-term stable refixation in cases of late posterior dislocation of a one-piece hydrophobic acrylic IOL. The risk that sutures looped around haptics will slip off the haptic is thereby avoided.
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| 4. |
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| 5. |
- Molnar, Anna, et al.
(författare)
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Central macular thickness in 6.5-year-old children born extremely preterm is strongly associated with gestational age even when adjusted for risk factors
- 2017
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Ingår i: Retina. - : Lippincott Williams & Wilkins. - 0275-004X .- 1539-2864. ; 37:12, s. 2281-2288
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Tidskriftsartikel (refereegranskat)abstract
- Purpose:To assess the macular thickness in 6.5-year-old children born extremelypreterm (EPT) in comparison with children born at term and to investigate risk factorsassociated with the macular thickness in the preterm group.Methods:A population-based study of 6.5-year-old children born before the gestationalage of 27 weeks and age-matched control subjects. Macular assessments with opticalcoherence tomography were performed, and the results were compared with neonatal riskfactors and sex.Results:Adequate optical coherence tomography measurements were obtained from134 children born EPT (mean gestational age of 25 weeks [range 23–26]) and 145 controlsubjects. The mean (range) of central macula thickness was significantly increased (P,0.001)in the EPT group (right eyes: 282mm [238–356], left eyes: 283mm[229–351]), compared withthe control group (right eyes: 249mm [208–293], left eyes: 248mm[207–290]). A multiple linearmixed model analysis of the EPT group revealed gestational age, retinopathy of prematurity,and male gender as important risk factors for an increased macular thickness. The macularthickness decreased by 3.9mm per gestational week, when adjusted for retinopathy of pre-maturity and sex.Conclusion:Extremely preterm birth constitutes a substantial risk factor for a thickcentral macula, even when adjusted for retinopathy of prematurity and male gender.
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| 6. |
- Tavares Ferreira, Joana, et al.
(författare)
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Choroidal thickness in diabetic patients without diabetic retinopathy
- 2018
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Ingår i: Retina. - 0275-004X .- 1539-2864. ; 38:4, s. 795-804
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE: To compare choroidal thickness (CT) between diabetic patients without diabetic retinopathy and a nondiabetic group. To explore how CT relates to disease duration, mean arterial pressure, glycemia, glycosylated hemoglobin, intraocular pressure, and ocular pulse amplitude.METHODS: Choroidal thickness was assessed using a spectral-domain optical coherence tomography and enhanced depth mode at 13 locations (subfoveal and 3 measurements 500 μm apart in 4 directions-nasal, temporal, superior, and inferior). Linear regression models were used.RESULTS: One hundred seventy-five patients were recruited (125 diabetic patients without diabetic retinopathy and 50 nondiabetic patients). In diabetic patients, although without statistical significance, CT showed a trend to be thicker in all locations (6.16-24.27 μm). Choroidal thickness was negatively associated with age (P < 0.001) in both groups, but only in the diabetic group, it was positively associated to ocular pulse amplitude (with a mean increase between 8.5 μm and 11.6 μm for each millimeter of mercury increase in ocular pulse amplitude). Diabetic patients' CT seems to stabilize after 150 months of diabetes, increase with higher glycemia levels (>160 mg/dL) while showing no fluctuation with glycosylated hemoglobin and mean arterial pressure.CONCLUSION: There seems to be a thickening of the choroid in diabetic patients without diabetic retinopathy. Moreover, this tissue may be functionally different in diabetes, as the pattern of associations seems to differ between groups.
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| 7. |
- Westborg, Inger, et al.
(författare)
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Risk For Low Visual Acuity After 1 And 2 Years Of Treatment With Ranibizumab Or Bevacizumab For Patients With Neovascular Age-Related Macular Degeneration
- 2017
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Ingår i: Retina. - : Lippincott Williams & Wilkins. - 0275-004X .- 1539-2864. ; 37:11, s. 2035-2046
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: To investigate how patients with neovascular age-related macular degeneration treated with ranibizumab or bevacizumab respond to treatment in daily clinical practice.Methods: Data from the Swedish Macula Register on the treatment received by 3,912 patients during 2011 to 2014 is reported. Patients' characteristics at the first visit, visual acuity, number of injections, and reason for terminating the treatment if applicable are discussed. Furthermore, the risk of having poor vision (visual acuity under 60 Early Treatment Diabetes Retinopathy Study letters or approximately 20/60 Snellen) is calculated for the treated eye after 1 year and 2 years.Results: The treatment outcome depends on the visual acuity at the first visit. For patients with visual acuity more than 60 letters, the risk of having a visual acuity lower than 60 letters after 1 year or 2 years of treatment is approximately 20%. However, for patients with low visual acuity at diagnosis (fewer than 60 letters), the risk is approximately 60%. The risk of having a visual acuity lower than 60 letters does not depend on the choice of treatment drug.Conclusion: Treatment with anti-vascular endothelial growth factor intravitreal injections mainly maintains the visual acuity level, and only approximately 20% and 40% of the patients required vision rehabilitation after 1 year and 2 years, respectively.
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| 8. |
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| 9. |
- Cardiakidis Myers, Anna, et al.
(författare)
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Rifabutin accumulates in the lens and reduces retinal function in the rabbit eye
- 2009
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Ingår i: Retina. - 0275-004X. ; 29:1, s. 106-111
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE: To study the toxicology of rifabutin in the rabbit eye with emphasis on retinal function and histopathology.METHODS: Seven rabbits received a daily dose of rifabutin during 15 months. Six rabbits receiving only the vehicle were used as controls. Repeated standardized full-field electroretinograms (ERG) were assessed. After discontinuing treatment, the rabbits were killed and the cornea, the lens, and the sectioned retina was studied. Immunhistochemistry directed against vimentin, glial fibrillaryacidic protein (GFAP), protein kinase C (PKC), and peanut agglutinin (PNA) was performed.RESULTS: Rifabutin was detected in serum of the treated rabbits. During treatment, the full-field ERG demonstrated significantly reduced b-wave amplitudes in the total rod-cone response as well as in the isolated rod and cone response compared with the recordings before treatment. The control rabbits did not demonstrate a reduction of the ERG amplitudes. The treated rabbits developed a discoloration of the lens, not seen in the control group. No retinal pathology was demonstrated using immunohistochemical methods.CONCLUSION: Rifabutin causes a discoloration of the lens and reduces both rod and cone function in rabbits, but does not alter retinal morphology. Previous reports on ocular side effects caused by rifabutin are supported by the results of this study.
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| 11. |
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| 12. |
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| 13. |
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| 14. |
- Ghosh, F, et al.
(författare)
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Transplant of full-thickness embryonic rabbit retina using pars plana vitrectomy
- 1998
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Ingår i: Retina. - 0275-004X. ; 18:2, s. 42-136
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE: To develop an improved surgical technique making full-thickness retinal transplant possible, thereby achieving a normal laminated transplant with minimal rosette formation.METHODS: A total of 23 rabbits underwent vitrectomy, retinotomy, and subsequent subretinal transplant of a complete embryonic neuroretina using a specially crafted glass cannula. Of the 23 animals, 15 received a prenatal day 16 or 19 (E16 or E19) retina; the remaining eight received an E15 retina. The animals were followed from 10 to 35 days, and after this period, the transplants were sectioned and stained for light microscopy.RESULTS: In 11 of the 15 transplants with E16 or E19 donors, histology showed regions up to 1.8 mm of straight, correctly positioned transplants with layering corresponding to their age. The eight animals kept alive longest postoperatively, 31 or 35 days, all showed normal retinal layers, including photoreceptor outer segments appositioned against the host retinal pigment epithelium. Tissue from the youngest donors (E15) yielded less well-organized transplants, indicating a critical stage in retinal embryogenesis before which transplant in this respect is less favorable.CONCLUSIONS: Our procedure makes it possible to transplant embryonic retina to the appropriate position adjacent to the host retinal pigment epithelium, keeping the transplant architecture intact. The transplants show good layering and well-developed photoreceptors abutting the retinal pigment epithelium.
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| 15. |
- Ghosh, Fredrik, et al.
(författare)
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Transplantation of full-thickness retina in the normal porcine eye: surgical and morphologic aspects.
- 2002
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Ingår i: Retina. - 0275-004X. ; 22:4, s. 478-486
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE: To report a surgical technique for transplantation of full-thickness neuroretinal sheets into the subretinal space of a large animal with a vascularized retina and to establish the light microscopic morphology of such specimens. METHODS: Twelve normal pigs underwent transplantation of a neuroretinal sheet from a neonatal donor into the subretinal space by means of a vitrectomy-based technique. After a survival of 33 to 72 days, eye specimens were studied with a light microscope. RESULTS: In most eyes, the transplants displayed a laminated morphology, with photoreceptor outer segments facing the host retinal pigment epithelium. These grafts had normal outer retinal layers, while the inner layers were less developed. The host retina straddling the graft showed evidence of photoreceptor degeneration, but the inner layers were well preserved. CONCLUSION: Full-thickness neuroretinal sheets can be transplanted to the subretinal space of a large animal eye with a vascularized retina. The grafts survive well and display mostly photoreceptors, which in combination with the well-preserved host inner retina may be of importance in attempts at reconstructing the retina in photoreceptor degenerative disease.
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| 16. |
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| 17. |
- Gustavsson, Carin, et al.
(författare)
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Inflammatory markers in nondiabetic and diabetic rat retinas exposed to ischemia followed by reperfusion.
- 2008
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Ingår i: Retina. - 0275-004X. ; 28:4, s. 645-652
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE:: To examine the retinal inflammatory response to ischemia-reperfusion in nondiabetic and diabetic rats injected with either an omega-3-polyunsaturated fatty acid (docosahexaenoic acid [DHA]) or a 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor (pravastatin). METHODS:: Diabetes was induced by an intraperitoneal injection of streptozocin, and retinal ischemia was induced by ligation of the optic nerve and vessels, followed by reperfusion for 1 hour or 24 hours. Five minutes before surgery, an intravenous injection of DHA, pravastatin, or vehicle (ethanol) was administered. The mRNA expressions of tumor necrosis factor (TNF)-alpha, interleukin (IL)-6, caspase-1, IL-1beta, P-selectin, vascular cellular adhesion molecule (VCAM)-1, and intercellular adhesion molecule (ICAM)-1 were compared between ischemic and nonischemic retinas as well as diabetic and nondiabetic nonischemic retinas. RESULTS:: Ischemia induced increased expressions of TNF-alpha (P
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| 18. |
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| 19. |
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| 20. |
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| 21. |
- Magliyah, Moustafa S., et al.
(författare)
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Leprel1-related Giant Retinal Tear Detachments Mimic the Phenotype of Ocular Stickler Syndrome
- 2023
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Ingår i: Retina. - 0275-004X. ; 43:3, s. 498-505
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Tidskriftsartikel (refereegranskat)abstract
- Purpose:To describe the features of retinal detachments and high myopia in patients with novel pathogenic variants in LEPREL1 and report a possible association with nephropathy.Methods:Retrospective study of 10 children with biallelic LEPREL1 pathogenic variants. Data included ophthalmic features, surgical interventions, and genetic and laboratory findings.Results:10 patients (8 females) from three families with homozygous (2) or compound heterozygous (1) variants in LEPREL1 were included. At presentation, mean age was 9.9 ± 2.6 years. Mean axial length was 28.9 ± 1.9 mm and mean refraction was -13.9 ± 2.8 diopters. Bilateral posterior subcapsular cataracts were present in eight patients (80%), with lens subluxation in five eyes of three patients (30%). Rhegmatogenous retinal detachments (RRD), associated with giant retinal tears (GRT), developed in seven eyes of five patients (50%) at a mean age of 14.14 ± 5.9 years. Six were successfully reattached with mean Snellen best-corrected visual acuity improving from 20/120 preoperatively to 20/60 at last follow-up. Urinalysis in nine patients revealed microhematuria and/or mild proteinuria in six patients (67%).Conclusion:LEPREL1-related high myopia confers a high risk of early-onset GRT-related RRD. The ocular phenotype may be confused with that of ocular Stickler syndrome if genetic testing is not performed. Further investigations into a potential association with renal dysfunction are warranted.
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| 22. |
- Nayak, Ramesh, et al.
(författare)
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Circulating antipericyte autoantibodies: A Novel Modifier of Risk of Progression of Diabetic Retinopathy?
- 2007
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Ingår i: Retina. - 0275-004X. ; 27:2, s. 211-215
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Tidskriftsartikel (refereegranskat)abstract
- Background: Antipericyte autoantibodies (APAAs) are present in high frequency among diabetic subjects with and without nonproliferative retinopathy. This study aimed to determine whether progression of retinopathy in type 2 diabetes was associated with the same medical risk factors in APAA-positive subjects as in APAA-negative subjects. Methods: Type 2 diabetic patients with nonproliferative diabetic retinopathy at baseline were followed prospectively for 2 years monitoring progression of retinopathy. Thirty-eight (21.7%) of 175 patients had progression in Early Treatment Diabetic Retinopathy Study grade by >= 2 steps in at least 1 eye. Serum APAAs were detected by immunofluorescence on tissue-cultured bovine retinal pericytes. Results: Progression of retinopathy was associated with HbA(1c) level (P = 0.002), diabetes duration (P = 0.03), and albumin/creatinine ratio (P = 0.02) in APAA-negative subjects but not in APAA-positive subjects. The association between progression and APAAs was strongest in the upper quartile for HbA(1c) level (>8.0%), where 71.4% of patients negative for APAAs had progression of retinopathy while only 24.1 % of patients positive for APAAs had progression (P = 0.007). Conclusion: The results suggest that APAA presence is a modifier of risk of progression of retinopathy due to hyperglycemia and that it could be useful as a biochemical marker of risk of progression of diabetic retinopathy in type 2 diabetic patients with poor metabolic control.
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| 23. |
- Pedersen, Karen Bjerg, et al.
(författare)
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Electrophysiological Assessment of Retinal Function During 6 Months of Bevacizumab Treatment in Neovascular Age-Related Macular Degeneration
- 2010
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Ingår i: Retina. - 0275-004X. ; 30:7, s. 1025-1033
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: The purpose of this study was to assess the alteration of retinal function by multifocal electroretinography and full-field electroretinography in patients with age-related macular degeneration treated with bevacizumab. Methods: We performed a prospective pilot study of 26 eyes of 26 previously treatment-naive patients with neovascular age-related macular degeneration receiving intravitreal injections with 1.25 mg bevacizumab. Patients were examined with multifocal electroretinography, full-field electroretinography, optical coherence tomography, and visual acuity. Follow-up was performed at 1 week, 6 weeks, 3 months, and 6 months. Results: Mean multifocal electroretinography P1 amplitudes were significantly improved at 1 week in the central zone and after 3 and 6 months, improvement was seen in all 6 concentric rings corresponding to +/-25 degrees of the central visual field. Full-field electroretinography results indicated a decrease in cone photoreceptor function at 3 months, which was normalized at 6 months compared with baseline. Furthermore, 2 of 3 of the combined rod-cone responses showed signs of decreased retinal function at 6 months. Conclusion: Our results indicate passing signs of an altered retinal cone photoreceptor function assessed by full-field electroretinography. The results do not show any conclusive signs of global retinal toxicity after 6 months. Multifocal electroretinography results show improved photoreceptor function with no sign of focal toxicity in the central retina. RETINA 30:1025-1033, 2010
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| 24. |
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| 25. |
- Schatz, Patrik, et al.
(författare)
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LACK OF AUTOFLUORESCENCE IN FUNDUS ALBIPUNCTATUS ASSOCIATED WITH MUTATIONS IN RDH5.
- 2010
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Ingår i: Retina. - 1539-2864. ; Okt, s. 1704-1713
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE:: The purpose of this study was to characterize the phenotype of fundus albipunctatus associated with RDH5 mutations. METHODS:: Four unrelated patients (patients 1-4) aged 35, 32, 19, and 8 years were examined with full-field electroretinography, multifocal electroretinography, optical coherence tomography, and fundus autofluorescence photography. Molecular genetic investigations included sequencing of RDH5 and RLBP1. RESULTS:: Patients 1 to 3 harbored homozygous mutations (c.881G>C, c.625C>T, and c.382G>A, respectively) and patient 4 harbored the compound heterozygous mutations (c.95delT and c.712G>T) in RDH5. A large variability in retinal dysfunction caused by RDH5 mutations was found but not fully explained by a simple prediction of reduced enzymatic function. All patients showed lack of autofluorescence of the fundus, indicating a reduced supply of 11-cis retinal to the photoreceptors. The lesions corresponding to the white dots did not autofluoresce and were seen on optical coherence tomography as discrete hyperreflective elements in the outer retina extending from the external limiting membrane to Bruch membrane. CONCLUSION:: Mutations in RDH5 associated with fundus albipunctatus seem to prevent normal lipofuscin accumulation. A relatively good functional status of 2 of 3 adult patients indicates that interference with 11-cis retinol dehydrogenase function may be a promising strategy for therapeutic intervention in retinal disorders featuring excessive lipofuscin accumulation.
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| 26. |
- Schatz, Patrik, et al.
(författare)
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RECOVERY OF RETINAL FUNCTION AFTER RECENT-ONSET RHEGMATOGENOUS RETINAL DETACHMENT IN RELATION TO TYPE OF SURGERY.
- 2010
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Ingår i: Retina. - 1539-2864. ; 30, s. 152-159
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE:: To investigate retinal function and structure after recent-onset rhegmatogenous retinal detachment in relation to type of surgery. METHODS:: Thirteen consecutive patients with rhegmatogenous retinal detachment of <7 days' duration underwent vitrectomy surgery. Optical coherence tomography, full-field electroretinography (ERG), and multifocal ERG were performed preoperatively and 6 months postoperatively. Results were compared with those from a similar cohort of patients that had been treated previously with scleral buckling surgery. RESULTS:: Anatomic success was achieved in 10 patients, and follow-up was performed in 9. Similar to after scleral buckling surgery, multifocal ERG amplitudes in detached retina and fovea improved significantly at follow-up. Also similar to after scleral buckling surgery, full-field ERG rod function, combined rod-cone, and cone 30-Hz flicker amplitudes improved but significance was not reached. Full-field ERG responses remained reduced compared with normal. However, in contrast to after scleral buckling surgery, full-field ERG 30-Hz flicker implicit times were delayed at follow-up (P = 0.004), indicating a specific inner retinal dysfunction. CONCLUSION:: Previously not described, significant differences were seen in the pattern of regeneration of inner retinal function after vitrectomy compared with after scleral buckling surgery for recent-onset rhegmatogenous retinal detachment.
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| 27. |
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