Publications by authors named "Dervenis Nikolaos"

We are presenting a new method for the treatment of large macular holes (MHs) with the use of an inverted flap consisting of both internal limiting membrane (ILM) and epiretinal proliferation (EP). A prospective interventional case series was conducted from September 2021 to January 2023. MH patients with coexistent EP visualized preoperatively in macula optical coherence tomography and with a MHs minimum linear diameter larger than 400 microns underwent standard pars plana vitrectomy with the creation of an inverted petaloid flap (consisting of both ILM and EP) and gas tamponade.

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Purpose: To evaluate OCT features for vitreomacular traction (VMT) release and change in macular hole (MH) size after treatment with ocriplasmin.

Methods: Patients who had undergone treatment with ocriplasmin for VMT with or without MH ≤400 µm were included. The main outcomes were VMT release and changes in minimum linear diameter MH size at 4 weeks in MHs that persisted.

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Age-related macular degeneration is a major cause of blindness, and the development of anti-vascular endothelial growth factor (VEGF) intravitreal treatments has revolutionised the management of the disease. At the same time, new challenges and unmet needs arose due to the limitations of the current therapeutic options. Neovascularisation development during the course of the disease has a complex pathogenetic mechanism, and several biomarkers and their association with treatment outcomes have been investigated.

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We assessed the effects of anti-inflammatory treatment after selective laser trabeculoplasty through a systematic search of the MEDLINE, COCHRANE, and ClinicalTrials.gov. The outcome measures were intraocular pressure, anterior chamber inflammation, and discomfort.

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Background: Vitrectomy is an established treatment for the complications of proliferative diabetic retinopathy (PDR). However, a number of complications can occur during and after vitrectomy for PDR. These include bleeding and the creation of retinal holes during surgery, and bleeding, retinal detachment and scar tissue on the retina after surgery.

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Purpose: The purpose is to assess the effect of ethnicity on surgical macular hole closure.

Methods: A retrospective cohort study was undertaken in five UK National Health Service Hospitals. We included all patients with known ethnicity undergoing vitrectomy, internal limiting membrane peel, and gas/oil tamponade for all stages of primary full-thickness macular hole (FTMH).

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Topic: A variety of different tamponade agents are used with vitrectomy combined with internal limiting membrane (ILM) peeling for the treatment of idiopathic macular holes. These agents include air, gas (sulfur hexafluoride [SF], hexafluoroethane [CF], and perfluoropropane [CF]), and silicone oil. The optimal tamponade agent is uncertain, and we aimed to review the effect of tamponade choice on hole closure and visual outcomes.

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Background: Diabetic retinopathy is a leading cause of visual loss in the working population. Pars plana vitrectomy has become the mainstream treatment option for severe proliferative diabetic retinopathy (PDR) associated with significant vitreous haemorrhage and/or tractional retinal detachment. Despite the advances in surgical equipment, diabetic vitrectomy remains a challenging operation, requiring advanced microsurgical skills, especially in the presence of tractional retinal detachment.

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Purpose: To assess the effect of an internal limiting membrane flap (IF) in macular hole surgery on the best-corrected visual acuity (BCVA) and integrity of the ellipsoid zone (EZ) and external limiting membrane.

Methods: Patients were included who had successful surgery for macular hole <400 µm with or without an IF. Main outcome measures were BCVA and restoration of the external limiting membrane and EZ at 12 months.

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: Pars plana vitrectomy techniques have evolved in the recent years and the number of patients undergoing phacoemulsification for post-vitrectomy cataract has increased. Eye-care practitioners need to be aware of intraoperative complications and post-operative outcomes in previously vitrectomised eyes.: The aim of the present study is to compare the outcomes and related complications of phacoemulsification in previously vitrectomised versus non-vitrectomised eyes.

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Objective: to analyse cataract surgery outcomes and related factors in eyes presenting with good visual acuity.

Subject And Methods: A retrospective longitudinal study of patients undergoing phacoemulsification between 2014 and 2018 in Moorfields Eye Hospital was conducted. Pre- and post-operative visual acuities were analysed.

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Article Synopsis
  • This case report details a rare instance of acute corneal melting and perforation in an 86-year-old woman one week post-cataract surgery, highlighting potential underlying causes.
  • The patient had a history of radiation treatment for cancer and undiagnosed rheumatoid arthritis, contributing to her ocular surface disorder.
  • Surgical intervention was performed using Gundersen's conjunctival flap, as the patient preferred it over corneal keratoplasty due to concerns about graft rejection.
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Purpose: The aim of our study was to compare the depth of the demarcation line developing in the cornea after the standard Dresden protocol versus the accelerated, pulsed, epithelium-off corneal collagen cross-linking (CXL).

Methods: This was a nonrandomized, retrospective case series. Patients with progressive keratoconus were treated with either the standard Dresden protocol (Group 1) or accelerated, epithelium-off CXL using the Avedro (Waltham, MA, USA) device (Group 2).

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Purpose: To identify factors associated with retinal capillary density as measured with Confocal Scanning Laser Doppler Flowmetry (Heidelberg retina flowmeter (HRF)) in the Thessaloniki Eye Study (TES).

Methods: Participants of the TES (age ≥60 years, cross-sectional population-based study) were assessed for active capillary density in the superior and inferior peripapillary retina using the HRF. Pixel-by-pixel analysis was performed to quantify the percentage of zero flow pixels (ZFPs; surrogate for % retinal area with non-active capillaries).

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Purpose: To analyze the outcomes of in-the--bag toric intraocular lens implantation for anterior capsular tears during phacoemulsification.

Methods: The cohort of this re-trospective, consecutive, interventional case series included eight patients. One patient was excluded as the tear was used to enlarge the rhexis.

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Purpose: To identify the factors associated with retinal vessel diameters in the population of the Thessaloniki Eye Study.

Methods: Cross-sectional population-based study (age ≥ 60 years). Subjects with glaucoma, late age-related macular degeneration, and diabetic retinopathy were excluded from the analyses.

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Purpose: To measure the inter- and intraobserver repeatability and reproducibility of choroidal thickness measurements taken by the enhanced depth imaging of spectral-domain optical coherence tomography (EDI-OCT) in randomly selected subjects using two different protocols.

Methods: Twenty subjects of the Thessaloniki Eye Study database were randomly selected. The participants underwent EDI-OCT, and the choroidal thickness was measured on EDI images using two different protocols.

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Article Synopsis
  • The XEN glaucoma implant is a new device approved for treating glaucoma, designed for minimally invasive procedures.
  • A 45-year-old female with primary open-angle glaucoma had the XEN implant placed in both eyes after previous treatments failed.
  • The implant initially controlled her intraocular pressure for 4 months, but a complication arose when the implant moved to the anterior chamber, requiring additional treatment to manage her eye pressure.
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We describe the surgical management of the aqueous misdirection syndrome through clear corneal incisions. A 20-gauge microvitreoretinal blade is used to create 2 side-port incisions. The same blade is inserted through the cornea and the iris for the main incision; it is then directed toward the center of the eyeball, passing through the zonular fibers to the vitreous cavity behind the pupil.

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Diabetic retinopathy (more specifically diabetic macular edema, DME) is the most common cause of loss of vision in the working population in developed countries. Anti-vascular endothelial growth factor (anti-VEGF) agents considerably changed the treatment algorithms and improved prognosis of center-involving DME. Ranibizumab was the first approved anti-VEGF agent that revolutionized DME treatment.

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Purpose: The purpose of this study was to assess whether specific characteristics of spectral domain optical coherence tomography (SD-OCT) affect structural and functional outcomes and number of injections needed in ranibizumab (0.05 mL of 10 mg/mL Lucentis solution)-treated wet age-related macular degeneration (AMD) patients.

Patients And Methods: This retrospective case series included 62 newly diagnosed wet AMD patients treated with three monthly intravitreal ranibizumab injections followed by monthly follow-up and pro re nata retreatment.

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