scholarly journals Reconstructing Foveola by Foveolar Internal Limiting Membrane Non-Peeling and Tissue Repositioning for Lamellar Hole-Related Epiretinal Proliferation

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Tzyy-Chang Ho ◽  
Allen Yi-Lun Ho ◽  
Muh-Shy Chen
Keyword(s):  
Visual Acuity ◽  
Clinical Characteristics ◽  
Internal Limiting Membrane ◽  
Lamellar Macular Hole ◽  
Ilm Peeling ◽  
Corrected Visual Acuity ◽  
Tangential Traction ◽  
Group 2 ◽  
Lamellar Hole ◽  
Group 1

Abstract Differences in the pathogenesis and clinical characteristics between lamellar macular hole (LMH) with and without LMH-associated epiretinal proliferation (LHEP) can have surgical implications. This study investigated the effects of treating LHEP by foveolar internal limiting membrane (ILM) non-peeling and epiretinal proliferative (EP) tissue repositioning on visual acuity and foveolar architecture. Consecutive patients with LHEP treated at our institution were enrolled. The eyes were divided into a conventional total ILM peeling group (group 1, n = 11) and a foveolar ILM non-peeling group (group 2, n = 22). In group 2, a doughnut-shaped ILM was peeled, leaving a 400-μm-diameter ILM without elevated margin over the foveola after EP tissue repositioning. The EP tissue was elevated, trimmed, and inverted into the LMH. Postoperatively, the LMH was sealed in all eyes in group 2, with significantly better best-corrected visual acuity (−0.26 vs −0.10 logMAR; p = 0.002). A smaller retinal defect (p = 0.003), a more restored ellipsoid zone (p = 0.002), and a more smooth foveal depression (p < 0.001) were achieved in group 2. Foveolar ILM non-peeling and EP tissue repositioning sealed the LMH, released the tangential traction, and achieved better visual acuity. The presumed foveolar architecture may be reconstructed surgically. LMH with LHEP could have a combined degenerative and tractional mechanism.

scholarly journals Treatment of Optic Canal Decompression Combined with Umbilical Cord Mesenchymal Stem (Stromal) Cells for Indirect Traumatic Optic Neuropathy: A Phase 1 Clinical Trial

2020 ◽  
Vol 64 (3) ◽  
pp. 398-404
Author(s):  
Jia Li ◽  
Xu Bai ◽  
Xiaoyue Guan ◽  
Hongfeng Yuan ◽  
Xiang Xu
Keyword(s):  
Visual Acuity ◽  
Adverse Events ◽  
Phase 1 ◽  
Optic Canal ◽  
Traumatic Optic Neuropathy ◽  
Corrected Visual Acuity ◽  
Group 2 ◽  
Best Corrected Visual Acuity ◽  
Group 1

<b><i>Purpose:</i></b> This study was aimed to investigate the safety and feasibility of umbilical cord-derived mesenchymal stem cell (MSC) transplantation in patients with traumatic optic neuropathy (TON). <b><i>Methods:</i></b> This is a single-center, prospective, open-labeled phase 1 study that enrolled 20 patients with TON. Patients consecutively underwent either optic canal decompression combined with MSC local implantation treatment (group 1) or only optic canal decompression (group 2). Patients were evaluated on the first day, seventh day, first month, third month, and sixth month postoperatively. Adverse events, such as fever, urticarial lesions, nasal infection, and death, were recorded at each visit. The primary outcome was changes in best-corrected visual acuity. The secondary outcomes were changes in color vision, relative afferent pupillary defect, and flash visual evoked potential. <b><i>Results:</i></b> All 20 patients completed the 6-month follow-up. None of them had any systemic or ocular complications. The change in best-corrected visual acuity at follow-up was not significantly different between group 1 and group 2 (<i>p</i> &#x3e; 0.05); however, group 1 showed better visual outcome than group 2. Both groups showed significant improvements in vision compared with the baseline (<i>p</i> &#x3c; 0.05); however, there were no statistically significant differences between the groups (<i>p</i> &#x3e; 0.05). In addition, no adverse events related to local transplantation were observed in the patients. <b><i>Conclusions:</i></b> A single, local MSC transplantation in the optic nerve is safe for patients with TON.

scholarly journals Evaluation of vision-related quality of life with autologous internal limiting membrane transplantation for refractory macular hole.

2019 ◽  
Author(s):  
dongqing yuan ◽  
Weiwei Zhang ◽  
Songtao Yuan ◽  
Ping Xie ◽  
Qinghuai Liu
Keyword(s):  
Quality Of Life ◽  
Visual Acuity ◽  
Macular Hole ◽  
Internal Limiting Membrane ◽  
Ilm Peeling ◽  
Corrected Visual Acuity ◽  
Hole Index ◽  
Related Quality ◽  
Best Corrected Visual Acuity

Abstract Background: To evaluate the vision-related quality of life of vitrectomy combined with autologous internal limiting membrane(ILM) transplantation for refractory macular hole． Methods: A prospective and nonrandomized clinical study was carried out. There were fourty eyes with refractory macular hole included and all eyes received 23G vitrectomy and ILM peeling with autologous ILM transplantation. Preoperative and postoperative basic conditions were recorded, including best corrected visual acuity (BCVA), intraocular pressure, central retinal thickness (CRT) measurement by Optical coherence tomography (OCT) examination, macular hole index (MHI) and operative complications. The Chinese version of visual-related quality of life scale -25 (CVRQoL-25) was used to evaluate the visual related quality of life of patients after operation. The correlation between the quality of life and the postoperative visual acuity and the size of the macular hole before operation was tested by Spearman rank correlation test. Results: All patients were followed up for three months after surgery, and 38 patients achieved anatomical closure. The mean postoperative logMAR BCVA was 1.09±0.33, which has significantly improved than that before operation (P=0.000). The vision-related quality of life of patients after surgery was closely related to the macular hole index (r=0.375, P=0.017), but was negatively correlated with the best corrected visual acuity before and after surgery (r=-0.495, P=0.001; r=-0.760，P=0.000). It was also found that the vision-related quality of life of patients positively correlated with the postoperative CRT ( r=0.414，P=0.008). Conclusions: The anatomical structure of refractory macular hole patients with ILM peeling combined with autologous ILM transplantation was largely reduced, and the visual acuity of the patients improved significantly. Meanwhile, the vision-related quality of life was significantly improved after surgery. Trial Registration: ChiCTR-INR-16008660, date of registration: 2016/06/17

Early treatment with dexamethasone intravitreal implants in diabetic macular edema: Naïve versus refractory patients

2021 ◽  
pp. 112067212110248
Author(s):  
Anna V Bux ◽  
Francesca Fortunato ◽  
Antonio Barone ◽  
Vincenzo Russo ◽  
Nicola Delle Noci ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Macular Edema ◽  
Diabetic Macular Edema ◽  
First Line ◽  
Corrected Visual Acuity ◽  
Real World Setting ◽  
Treatment Naïve ◽  
Group 2 ◽  
Group 1

Purpose: To assess the efficacy and safety of dexamethasone 0.7 mg implants (DEX-I) in patients with diabetic macular edema (DME) either naïve to therapy or refractory to anti-VEGF treatment, in a single-center, real-world setting. Methods: Patients diagnosed with DME and treated with DEX-I were retrospectively enrolled in the study and split in two groups: naïve (Group 1, n = 64) and refractory (Group 2, n = 64) to treatment. Patients were evaluated at baseline, at 1 month, and every 3 months after each DEX-I implant. Main outcome measures were change in best-corrected visual acuity (BCVA) and central macular thickness (CMT) from baseline to follow-up visits. Results: Significant improvements in BCVA were observed in treatment-naïve patients at 6 months following the first and second DEX-I injection ( p = 0.0023 and p = 0.0063, respectively), with significant reductions in mean CMT at 6 months after all DEX implants. In treatment-refractory patients, mean CMT was significantly reduced from baseline to 6 months ( p < 0.05) after all DEX-I injections, although no changes were observed in BCVA. Conclusions: DEX-I improved visual acuity and macular edema mostly in treatment-naïve patients, suggesting DEX-I may be a viable first-line treatment option in DME.

Long-term macular vascular density measured by OCT-A in children with retinopathy of prematurity with and without need of laser treatment

2020 ◽  
pp. 112067212098320
Author(s):  
Ana Rita Carreira ◽  
João Cardoso ◽  
Diogo Lopes ◽  
Tomás Loureiro ◽  
Audrey Sampaio ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Laser Treatment ◽  
Retinopathy Of Prematurity ◽  
Vascular Density ◽  
Preterm Children ◽  
Corrected Visual Acuity ◽  
Group 2 ◽  
Best Corrected Visual Acuity ◽  
Group 1

Purpose: To assess long-term vascular density measured by optical coherence tomography angiography (OCT-A) in former preterm children with history of retinopathy of prematurity (ROP) with and without need of laser treatment. Methods: This observational study included former preterm children that developed ROP stage 2 or 3. Infants were divided in two groups according to previous need of laser treatment, and underwent a complete ophthalmologic evaluation, including assessment of macular morphologic and vascular parameters by OCT-A. Results: Fifteen eyes were included in group 1 (laser-requiring ROP) and 19 in group 2 (non-treated ROP). Group 1 had lower mean gestational age and birth weight values than group 2 ( p < 0.001 and p < 0.001, respectively). Best corrected visual acuity (BCVA) was lower in group 1 (0.08 ± 0.04 logMAR vs 0.04 ± 0.07 logMAR, p = 0.03). Laser-requiring ROP had lower vascular parameters, especially of central and internal vascular density (9.15 ± 2.75 vs 10.52 ± 0.86 mm−1, p = 0.05; 13.74 ± 1.00 vs 15.86 ± 0.64 mm−1, p = 0.05; respectively), and lower avascular zone circularity (0.58 ± 0.06 vs 0.76 ± 0.02, p < 0.001). Mean macular thickness was higher in group 1 (300.50 ± 10.50 vs 281.11 ± 2.50 μm, p = 0.05). Best corrected visual acuity (BCVA) was correlated with superficial vascular density ( p < 0.05). Conclusion: Laser-requiring ROP seems to result in a decrease of long-term BCVA, which is at least partially attributed to a decrease in superficial macular vascular density. However, prematurity degree was more pronounced in children that required treatment, which might have influenced our results.

scholarly journals Comparative study of anatomic and functional changes of the corneal endothelium in cataract patients undergoing phacoemulsification and MSICS

2021 ◽  
Vol 7 (2) ◽  
pp. 358-362
Author(s):  
Gurvinder Khosa ◽  
Karanijit Singh ◽  
Prempal Kaur ◽  
Rajesh Kumar ◽  
Upasna Ajmani
Keyword(s):  
Visual Acuity ◽  
Endothelial Cell ◽  
Central Corneal Thickness ◽  
Corneal Thickness ◽  
Cell Loss ◽  
P Value ◽  
Corrected Visual Acuity ◽  
Group 2 ◽  
Best Corrected Visual Acuity ◽  
Group 1

The purpose of this study was to compare the effect of Phacoemulsification and Manual small incision cataract surgery (MSICS) on the corneal endothelium and to assess its impact on visual acuity and induced astigmatism. In this prospective randomized study, 100 cases were randomly selected with the help of lottery system. 50 cases underwent phacoemulsification (group 1) and 50 underwent MSICS (group 2) by a single surgeon. The endothelial cell count, central corneal thickness, best corrected visual acuity and induced astigmatism was measured preoperatively and postoperatively on day 1, 7, 28 and on day 42. Mean endothelial cell loss (cells/mm2) in group 1 at the end of six weeks was 538.64 (20.59%) and in group 2 was 485.66 (19.20%) which was statistically insignificant (p &#62;0.05). The mean central corneal thickness was reduced in both the groups with a mean of 0.51±0.04 mm in group 1 and 0.50±0.03 mm in group 2 which was statistically insignificant. Postoperative best corrected visual acuity of more than 6/18 was found in 49 (98%) cases in each group at six weeks, and was statistically insignificant (p value &#62; 0.05). Phacoemulsification group had statistically significant less mean postoperative astigmatism than MSICS group (p value &#60; 0.05). Both groups gave similar statistically insignificant results in relation to endothelial cell loss, central corneal thickness and best corrected visual acuity at the end of six weeks, although the mean astigmatism was more in group 2 in comparison to group 1 with a statistically significant difference.

scholarly journals Evaluation of vision-related quality of life with autologous internal limiting membrane transplantation for refractory macular hole.

2019 ◽  
Author(s):  
Dongqing Yuan ◽  
Weiwei Zhang ◽  
Songtao Yuan ◽  
Ping Xie ◽  
Qinghuai Liu
Keyword(s):  
Quality Of Life ◽  
Visual Acuity ◽  
Macular Hole ◽  
Internal Limiting Membrane ◽  
Ilm Peeling ◽  
Corrected Visual Acuity ◽  
Hole Index ◽  
Related Quality ◽  
Best Corrected Visual Acuity

Abstract Background: To evaluate the vision-related quality of life of vitrectomy combined with autologous internal limiting membrane(ILM) transplantation for refractory macular hole． Methods: A prospective and nonrandomized clinical study was carried out. There were fourty eyes with refractory macular hole included and all eyes received 23G vitrectomy and ILM peeling with autologous ILM transplantation. Preoperative and postoperative basic conditions were recorded, including best corrected visual acuity (BCVA), intraocular pressure, central retinal thickness (CRT) measurement by Optical coherence tomography (OCT) examination, macular hole index (MHI) and operative complications. The Chinese version of visual-related quality of life scale -25 (CVRQoL-25) was used to evaluate the visual related quality of life of patients after operation. The correlation between the quality of life and the postoperative visual acuity and the size of the macular hole before operation was tested by Spearman rank correlation test. Results: All patients were followed up for three months after surgery, and 38 patients achieved anatomical closure. The mean postoperative logMAR BCVA was 1.09±0.33, which has significantly improved than that before operation (P=0.000). The vision-related quality of life of patients after surgery was closely related to the macular hole index (r=0.375, P=0.017), but was negatively correlated with the best corrected visual acuity before and after surgery (r=-0.495, P=0.001; r=-0.760，P=0.000). It was also found that the vision-related quality of life of patients positively correlated with the postoperative CRT ( r=0.414，P=0.008). Conclusions: The anatomical structure of refractory macular hole patients with ILM peeling combined with autologous ILM transplantation was largely reduced, and the visual acuity of the patients improved significantly. Meanwhile, the vision-related quality of life was significantly improved after surgery. Trial Registration: ChiCTR-INR-16008660, date of registration: 2016/06/17

scholarly journals Associations Between Contrast Sensitivity and Aging

Medicina ◽  
2013 ◽  
Vol 49 (6) ◽  
pp. 43 ◽  
Author(s):  
Rasa Liutkevičienė ◽  
Džastina Čebatorienė ◽  
Giedrė Liutkevičienė ◽  
Vytautas Jašinskas ◽  
Dalia Žaliūnienė
Keyword(s):  
Visual Acuity ◽  
Contrast Sensitivity ◽  
Age Groups ◽  
Group 4 ◽  
Corrected Visual Acuity ◽  
Spatial Frequencies ◽  
Group 3 ◽  
Group 5 ◽  
Group 2 ◽  
Group 1

Objective. The aim of this study was to assess age-related visual functions (visual acuity and contrast sensitivity) and compare the results by different age groups. Material and Methods. A total of 231 patients were examined. The patients were divided into 5 age groups: 10 patients in group 1, 30–39 years; 40 patients in the group 2, 40–49 years; 77 patients in the group 3, 50–59 years; 71 patients in the group 4, 60–70 years; and 33 patients in the group 5, 71–85 years. A typical Snellen’s chart (the direction of the gap in Landolt C) was used for noncorrected and best-corrected visual acuity testing. Contrast sensitivity was evaluated by employing a Ginsburg Box, VSCR-CST-6500. Results. Noncorrected visual acuity was significantly better in the group 2 than the group 3 (0.86 [0.28] vs. 0.69 [0.33], P=0.018). Moreover, noncorrected and best-corrected visual acuity was significantly better in the group 4 than the group 5 (0.52 [0.35] vs. 0.35 [0.28], P<0.001; and 0.9 [0.21] vs. 0.69 [0.27], P<0.005, respectively). Contrast sensitivity at the nighttime without glare was significantly worse in the group 2 than the group 1 at the spatial frequencies of 3, 12, and 18 cycles per degree (P=0.001, P=0.05, and P=0.01, respectively). The patients in the group 2 had significantly worse contrast sensitivity at the nighttime and daytime with glare at the spatial frequencies of 1.5, 12, and 18 cycles per degree (P=0.054, P=0.04, and P=0.01 and P=0.011, P=0.031, and P=0.011, respectively). The greatest differences in contrast sensitivity were observed between the groups 4 and 5, and it was 2 to 4 times better in the group 4. Comparing these groups, all the differences at the nighttime and daytime with and without glare were significant. Conclusions. Contrast sensitivity was worst among the oldest persons (71–85 years), and it began to worsen already in the persons aged 40–49 years. Contrast sensitivity was very similar in the age groups of 40–49 and 50–59 years.

scholarly journals Inverted internal limiting membrane flap technique versus complete internal limiting membrane peeling in large macular hole surgery: a comparative study

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Prithvi Ramtohul ◽  
Eric Parrat ◽  
Danièle Denis ◽  
Umberto Lorenzi
Keyword(s):  
Optical Coherence Tomography ◽  
Functional Outcomes ◽  
Internal Limiting Membrane ◽  
External Limiting Membrane ◽  
Ilm Peeling ◽  
Closure Rate ◽  
Flap Technique ◽  
Stage 4 ◽  
Group 2 ◽  
Group 1

Abstract Background To compare the anatomical and functional outcomes of the inverted internal limiting membrane (ILM) flap technique and the complete ILM removal in the treatment of large stage 4 macular hole (MH) > 400 μm and to evaluate reconstructive anatomical changes in foveal microstructure using spectral-domain optical coherence tomography. Methods This is a retrospective, consecutive, nonrandomized comparative study of patients affected by idiopathic, myopic or traumatic stage 4 MH (minimum diameter > 400 μm) treated with 25-gauge pars-plana vitrectomy with either complete ILM peeling (n = 23, Group 1) or inverted ILM flap technique (n = 23, Group 2), between August 2016 and August 2018. Main outcomes measured were the MH closure rate assessed by spectral-domain optical coherence tomography and the best-corrected visual acuity (BCVA) at six months. Foveal microstructure reconstructive changes were evaluated using SD-OCT to determine predictive factors of postoperative BCVA. Results Closure of MH was achieved in 16/23 cases of Group 1 (70%) and in 22/23 cases of the Group 2 (96%). Surgical failure was reported in 6 cases of Group 1 and 1 case of Group 2. The MH closure rate was significantly higher with the inverted ILM flap technique (P-value = 0.02). Average BCVA (LogMAR) changed from 1.04 ± 0.32 to 0.70 ± 0.31 in Group 1 and from 0.98 ± 0.22 to 0.45 ± 0.25 in Group 2 (P-value = 0.005) at 6 months. Improvement in BCVA (> 0.3 LogMAR units) was statistically higher in the Group 2 (P-value = 0.03). Restoration of foveal microstructure was significantly higher in the Group 2 at 6 months (52% vs 9%, P-value < 0.01). In Group 2, the integrity of the external limiting membrane at 3 months postoperatively was the only significant feature correlated with postoperative BCVA at 6 months (r = 0.562; P-Value = 0.01, forward stepwise regression analysis). Conclusion Inverted ILM flap technique is more effective than the classic ILM peeling for the closure of large stage 4 MHs > 400 μm, improving both anatomical and functional outcomes. Early recovery of the external limiting membrane at 3 months is a positive predictive value of postoperative BCVA 6 months after inverted ILM flap technique.

Accelerated Corneal Crosslinking for Treatment of Progressive Keratoconus in Pediatric Patients

2016 ◽  
Vol 27 (3) ◽  
pp. 319-325 ◽  
Author(s):  
Döndü M. Ulusoy ◽  
Emre Göktaş ◽  
Necati Duru ◽  
Ayşe Özköse ◽  
Mustafa Ataş ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Pediatric Patients ◽  
Corneal Thickness ◽  
Efficacy And Safety ◽  
Ultraviolet A ◽  
Corneal Crosslinking ◽  
Corrected Visual Acuity ◽  
Uncorrected Visual Acuity ◽  
Group 2 ◽  
Group 1

Purpose To evaluate the safety and efficacy of accelerated corneal crosslinking (CXL) in patients with progressive keratoconus aged 18 years or less. Methods A total of 28 eyes from 19 patients with progressive keratoconus aged 18 years or less were enrolled. We divided participants into 2 groups according to corneal thickness (CT). Group 1 included 13 eyes of 8 patients with CT ≥450 µm; group 2 included 15 eyes of 11 patients with CT <450 µm. Each participant underwent accelerated CXL using 10-minute ultraviolet A irradiance at 9 mW/cm2 for a total energy dose of 5.4 J/cm2. The efficacy and safety of the procedure were assessed postoperatively at 1, 3, 6, and 12 months with Pentacam and visual acuity. Results In uncorrected visual acuity, group 1 showed a statistically significant +0.12 logMAR improvement at 3 months postoperatively (p = 0.003), and in group 2, there was a statistically significant +0.3 logMAR improvement at 1 month postoperatively (p = 0.005). In best-corrected visual acuity, there was a +0.15 logMAR (p<0.001) and +0.22 logMAR (p = 0.005) improvement in group 1 and group 2, respectively, at 12 months postoperatively. All mean keratometric values including K1 and K2 dropped by at least 1 D or remained stable (< ± 1 D) in both groups after accelerated CXL treatment. Conclusions The findings showed that accelerated CXL treatment seems to be effective in slowing or halting the progression of keratoconus and that no permanent apparent complications are noted 6 months after accelerated CXL.

scholarly journals Benefit Of Vitrectomy And Internal Limiting Membrane Peeling In The Treatment Of Resistant Diabetic Macular Edema

2021 ◽  
Author(s):  
Ahmet Altun ◽  
Fatih Atmaca ◽  
Hatice Selen Kanar ◽  
Aysu Karatay Arsan ◽  
Aynur Hacisalihoglu ◽  
...  
Keyword(s):  
Macular Edema ◽  
Diabetic Macular Edema ◽  
Internal Limiting Membrane ◽  
Prospective Clinical Study ◽  
Ilm Peeling ◽  
Fundus Fluorescein Angiography ◽  
Macular Function ◽  
Group 2 ◽  
Intravitreal Dexamethasone ◽  
Group 1

Abstract Background: To investigate the results of internal limiting membrane (ILM) peeling in patients with resistant diabetic macular edema (DME). Methods: In this randomized, controlled and prospective clinical study, the patients with resistant DME due to proliferative diabetic retinopathy were divided into two groups. Both groups underwent 23 gauge pars plana vitrectomy (PPV). Additionally ILM peeling was performed only to the cases in Group 2. During follow-ups, complete ophthalmological examinations, optical coherence tomography and fundus fluorescein angiography were performed. After PPV, intravitreal dexamethasone implant injection was performed for DME treatment when necessary. The patients were followed for 1 year. Results: A total of 40 eyes of 37 patients were included in the study. The average age was 57.5 ± 5.4 and 56.9 ± 5.8 years, and the ratio of male:female was 9:11 and 6:14 in Group 1 and Group 2, respectively (p >0.05). The improvement level in BCVA was more evident especially in the first and third months postoperatively in both groups (p <0.01). Improvement in BCVA in the first and third months postoperatively was statistically more significant in Group 2 than Group 1 (p <0.05) Conclusion:PPV is beneficial in the management of resistant DME, and ILM peeling seems to be useful for macular function and may accelerate improvement in visual acuity.

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