Changing trends in the corneal transplantation and the impact of the COVID-19 pandemic on corneal transplant recipient selection.

Purpose: The aim of this study was to analyze the trends in the major indications and types of keratoplasty over a 15-year period and to determine the effect of the coronavirus disease-2019 (COVID-19) pandemic on the selection of corneal transplant recipients at a tertiary referral center in Turkey.

Methods: We retrospectively reviewed the data of patients who underwent keratoplasty at the center from January 2006 to March 2021. The keratoplasty indications and types of surgery were evaluated after classification into three groups (period I - January 2006-December 2012; period II - January 2013-March 2020; COVID-19 period - April 2020-March 2021).

Deep anterior lamellar keratoplasty versus penetrating keratoplasty: comparison of clinical outcomes in contralateral eyes.

Purpose: This study aimed to compare the clinical outcomes following deep anterior lamellar keratoplasty and penetrating keratoplasty in contralateral eyes of the same patients.

Methods: In this retrospective, comparative case series, clinical outcome data included best-corrected visual acuity, refractive spherical equivalent, refractive astigmatism, endothelial cell density, endothelial cell loss, central corneal thickness, and intraocular pressure, which were evaluated at 6, 12, 24, and 36 months after deep anterior lamellar keratoplasty and penetrating keratoplasty. Additionally, complications were assessed.

Does Storage Time Affect the Outcomes of Split Corneal Transplantation to Reduce Corneal Donor Shortage? A Retrospective Study.

Split cornea transplantation can reduce the shortage of donor corneas. Therefore, this study aimed to evaluate the effect of split graft storage time on the outcomes of split corneal transplantation through Descemet membrane endothelial keratoplasty (DMEK) and deep anterior lamellar keratoplasty (DALK) surgeries. Split corneal transplantation was performed in 80 eyes using 41 donor corneas.

Epidemiological Characteristics of Corneal Donors at a Tertiary Referral Center in Turkey: An Eye Bank Study.

Objectives: The aim of this study was to evaluate the demographic features of corneal donors and available data of corneas in our eye bank during a 14-year period.

Materials And Methods: The demographic features of the corneal donors, the causes of death, the death-to-excision interval, serology results, the mean endothelial cell density, and the reasons for discarding the corneas were retrospectively evaluated.

Results: During the study period, 6524 corneas were retrieved from 3326 donors (76.

Comparison of the Success Rate of Two Different Marking Techniques (F-Mark and Asymmetric Triangular Mark) to Orient the Donor Graft During Descemet Membrane Endothelial Keratoplasty.

Objectives: We evaluated the effects of various graft-marking techniques on surgical results in patients undergoing Descemet membrane endothelial keratoplasty.

Materials And Methods: In this single-center retrospective study, 65 eyes from 55 patients that had received various types of marking or no marking and that had been used for Descemet membrane endothelial keratoplasty endothelial graft preparation were included. Patients were divided into 3 groups according to the marking technique used: group I (F-marked graft; 17 eyes), group II (asymmetric triangle-marked graft; 12 eyes), and group III (unmarked graft; 36 eyes).

Effect of oral Colchicine on Peripapillary retinal nerve fiber layer thickness in patients with familial Mediterranean fever.

Background: The purpose of this study is to investigate whether oral colchicine has an effect on peripapillary retinal nerve fiber layer (pRNFL) thickness of familial Mediterranean fever (FMF) patients.

Methods: We conducted a cross sectional study by comparing pRNFL thickness of FMF patients on colchicine (treated group), newly diagnosed colchicine naïve FMF patients (untreated group) and healthy controls. The study included 66 FMF patients and 32 healthy control subjects.

Comparison of visual and topographic outcomes of deep-anterior lamellar keratoplasty and penetrating keratoplasty in keratoconus.

Aim: To compare visual, surgical and topographic outcomes of deep anterior lamellar keratoplasty (DALK) and penetrating keratoplasty (PK) for keratoconus (KC).

Methods: In this multicenter, prospective, randomized clinical trial 76 eyes of 71 KC patients operated between January 2011 and July 2014 in 2 tertiary referral hospitals were included. Consecutive patients were alternately selected to receive one of the two surgical methods.

Use of an Intravitreal Dexamethasone Implant (Ozurdex) in a Case with Accidental Foveal Photocoagulation by Alexandrite Laser.

Alexandrite laser is one of the most common methods of hair removal. Its utilization is gradually increasing due to easy accessibility and high effectiveness. However, the disuse of protective goggles during the application of this laser is a serious problem.

Evaluation of the Cornea and Anterior Chamber Morphologic Changes After Penetrating Keratoplasty in Patients With Keratoconus.

Objectives: To evaluate changes of the cornea and anterior chamber after penetrating keratoplasty in eyes with keratoconus.

Methods: Medical records of 68 eyes of 68 patients with keratoconus who experienced penetrating keratoplasty at the Eye Clinic of Dr. Lütfi Kirdar Kartal Research and Training Hospital between 2010 and 2012 were studied.

Traumatic wound dehiscence after penetrating keratoplasty.

Background: We aimed to evaluate the risk factors, clinical features and outcomes of surgery for traumatic wound dehiscence (TWD) following penetrating keratoplasty (PK).

Methods: Twenty-six patients with TWD following PK were evaluated retrospectively in terms of factors related to the trauma, types of reconstructive surgery, final graft clarity, and visual acuity.

Results: There were 26 patients with a mean age of 40.

Long-term vision-threatening complications of phakic intraocular lens implantation for high myopia.

Aim: To report the long-term vision-threatening complications in patients who underwent phakic intraocular lens (pIOLs) implantation for high myopia.

Methods: This study was designed from a consecutive series of phakic intraocular lens complication and corrective surgeries. Sixteen eyes of 13 patients had implantation of phakic intraocular lens for correction high myopia and developed serious complications have been included in this study.

Comparison of contrast sensitivity and visual acuity between deep anterior lamellar keratoplasty and penetrating keratoplasty in patients with keratoconus.

Aim: To evaluate postoperative visual acuity and contrast sensitivity results following deep anterior lamellar keratoplasty (DALK) and penetrating keratoplasty (PK) in patients with keratoconus (KC).

Methods: All the patients' records with KC who had PK or DALK surgery between May 2010 and May 2011 were retrospectively reviewed. Sixty patients who underwent successful corneal transplantation for KC: 30 eyes underwent DALK and 30 eyes underwent PK were included in this study.

Exogenous group G Streptococcus endophthalmitis following intravitreal ranibizumab injection.

We report a case of group G Streptococcus endophthalmitis following an intravitreal ranibizumab injection for a choroidal neovascular membrane. Pars plana vitrectomy was applied for endophthalmitis and group G Streptococcus cultures were isolated in the vitreous samples taken from the patient. Twenty-four hours following pars plana vitrectomy the patient underwent myocardial infarction and cardiac arrest.

Incidence of and risk factors for increased intraocular pressure after penetrating keratoplasty.

Purpose: To identify the incidence of and risk factors associated with the development of glaucoma after penetrating keratoplasty.

Methods: A retrospective study was carried out between September 1996 and January 2007 with 729 patients' 749 eyes, which underwent penetrating keratoplasty at the 1st Eye Clinic at Dr. Lütfi Kirdar Kartal Training and Research Hospital, Istanbul.

Toric intraocular Collamer lens for high myopic astigmatism after penetrating keratoplasty.

A toric intraocular Collamer lens (ICL) was used to correct myopic astigmatism after penetrating keratoplasty. The patient's manifest refraction improved from -8.0 -1.

Inadvertent use of water-based ink instead of trypan blue in cataract surgery.

We report a case of iris atrophy and corneal endothelial decompensation following the inadvertent use of water-based ink for capsular staining during cataract surgery. The anterior chamber was thoroughly irrigated with balanced salt solution after the identification of the wrong dye. Phacoemulsification with minimal ultrasound energy and intraocular lens implantation were performed without complications, and the operation was completed.

Effect of heparin in the intraocular irrigating solution on postoperative inflammation in the pediatric cataract surgery.

Purpose: To evaluate the influence of irrigation of the anterior chamber with heparin sodium on postoperative inflammation after pediatric cataract surgery.

Setting: Kartal Training and Research Hospital, First Eye Clinic, Istanbul, Turkey.

Design: Randomized prospective double-blind study.

Therapeutic applications of lotrafilcon a silicone hydrogel soft contact lenses.

Purpose: To investigate the effectiveness of silicone hydrogel soft contact lenses for therapeutic applications.

Methods: The study included 37 patients who had bullous keratopathy (n=12), recurrent corneal erosion (n=9), filamentous keratitis (n=3), corneal melting after corneal surgery (n=4), lamellar lacerations (n=4), or chemical trauma (n=5) and were fitted with silicone hydrogel soft contact lenses between May 2000 and August 2003 in First Eye Clinic of Kartal Training and Research Hospital. Changes in corneal signs by slitlamp evaluation, judgment of pain relief, additional complications, and success of therapeutic lens treatment were reported.