To evaluate the visual and refractive outcomes after deep anterior lamellar keratoplasty (DALK) using big-bubble technique in eyes with keratoconus.In this case series, moderate to advanced keratoconus underwent DALK. All of them had unacceptable spectacle-corrected acuity or were contact lens intolerant. DALK was performed technique. Full thickness donor cornea without Descemet's membrane (DM) sutured recipient bed three different suturing techniques. The (presented logMAR), status,...

Purpose: To compare deep anterior lamellar keratoplasty (DALK) using the big-bubble technique to penetrating (PK) in patients with keratoconus. Materials and Methods: In this clinical trial, moderate advanced keratoconus poor spectacle-corrected visual acuity intolerant contact lens wear were enrolled. DALK was performed technique, a full-thickness donor cornea without Descemet membrane sutured recipient bed. PK conventionally Hessburg-Barron suction trephine. Three types of suturing used...

The concept of lamellar keratoplasty (LK) is not new. However, it had been abandoned and largely replaced by the time-honored technique penetrating (PK) because LK technically demanding, time consuming gives suboptimal visual outcomes due to interface irregularity arising from manual dissection. Recent improvements in surgical instruments introduction new techniques maximum depth corneal dissection as well inherent advantages such preservation globe integrity elimination endothelial graft...

A successful corneal graft requires both clarity and an acceptable refraction. clear may be optical failure if high astigmatism limits visual acuity. Intraoperative measures to reduce postkeratoplasty include round central trephination of cornea with adequate size, appropriate sutures evenly distributed tension, perfect graft-host apposition. Suture manipulation has been described for minimising early postoperative astigmatism. If significant remains after suture removal, which cannot...

To find the level of dissection in keratoconic corneas undergoing deep anterior lamellar keratoplasty (DALK) using big-bubble technique.In 3 eyes that underwent DALK, operation was converted into penetrating after complete formation because extensive tear Descemet's membrane (DM) during stromal excision. The corneal stroma and DM taken from these were submitted for light transmission electron microscopy.Both microscope revealed a thin layer adhered to all cases. In 2 eyes, residual thickness...

Purpose: The aim of this study is to report the indications, techniques, and clinical outcomes corneal transplantation investigate any changing trends in surgical techniques over a 6 year period. Materials Methods: Records patients who had undergone kind at Labbafinejad Medical Center, Tehran, Iran, from January 2004 December 2009 were reviewed determine indications types transplantation. Postoperative best-corrected visual acuity, refractive error, graft clarity, complications reported....

Background: Selective suture removal has been demonstrated to be effective in reducing post-keratoplasty astigmatism, while the remaining sutures are left place. Existing studies typically focus on outcomes immediately after selective removal, without delving into final suture-out keratometric astigmatism. Objectives: To examine impact of corneal graft astigmatism following keratoplasty keratoconus and identify potential factors associated with changes removal. Design: Retrospective,...

To report a case of herpes simplex virus (HSV)-associated endothelial keratitis in patient receiving topical interferon (IFN)-α 2b for the management ocular surface squamous neoplasia (OSSN). A 65-year-old female was diagnosed with OSSN characterized by gelatinous growth on left cornea, without conjunctival involvement. She had no history herpetic keratitis. The treated IFN-α 1 million IU/ml four times daily, leading to complete clinical resolution within three months. However, months after...

To compare ultrasound pachymetry and Orbscan II for measurement of central corneal thickness (CCT) in normal eyes.The current study was performed at Labbafinejad Medical Center (LMC), Tehran, Iran. Three hundred eyes from 150 healthy individuals referred keratorefractive surgery were assessed first by then pachymetry, CCT values recorded compared.Overall, overestimated as compared to about 2.4% (mean 547.6 ± 34.7 versus 534.8 34.7, respectively, P < 0.001). The difference more significant...

To assess the agreement among ultrasonic pachymetry, Galilei dual Scheimpflug analyzer, and Orbscan II for central peripheral (Galilei vs. Orbscan) corneal thickness (CCT PCT) measurement in normal keratoconic eyes.In this prospective study, CCT PCT were measured 88 eyes of refractive surgery candidates 128 69 patients with Galilei, II. The readings by three instruments compared using one-way analysis variance. Agreement devices was assessed Pearson intraclass correlation coefficients,...

<h3>Purpose</h3> To investigate recipient and operative factors that can influence the rate of achieving a bare Descemet's membrane (DM) during deep anterior lamellar keratoplasty (DALK) for keratoconus. <h3>Materials</h3> In this retrospective comparative study, total 290 (153 right) consecutive eyes from 257 (179 male) keratoconus-affected patients who underwent DALK with big-bubble technique were enrolled. Univariate analyses multiple logistic regressions used to including patient age...

To determine the predictive ability of different data measured by Galilei dual Scheimpflug analyzer in differentiating subclinical keratoconus and from normal corneas.This prospective comparative study included 136 eyes, 23 eyes with keratoconus, 51 keratoconic eyes. In each eye, keratometric values, pachymetry, elevation parameters surface indices were evaluated. Receiver operating characteristic (ROC) curves calculated quantified using area under curve (AUC) to compare sensitivity...

The purpose of this study was to report 2 patients with anterior scleritis manifesting after coronavirus disease 2019 (COVID-19).The confirmed COVID-19 developed their systemic symptoms were markedly improved. A thorough workup identified no underlying autoimmune diseases. Ocular characteristics and safety efficacy immunosuppressive therapy evaluated.Case 1 a 67-year-old woman who presented necrotizing in both eyes 3 weeks the onset COVID-19. One-week treatment topical betamethasone oral...

To determine the efficacy and safety of perilesional/subconjunctival bevacizumab injections in management ocular surface squamous neoplasia (OSSN).Ten eyes 10 patients with an OSSN diagnosis confirmed by impression cytology received 2 at a 2-week interval. Patients were evaluated for 3 months, during which time, changes lesions documented using digital photography. After this period, excisional biopsy remaining tumor cryotherapy conjunctival borders performed if deemed necessary.The mean age...

The aim of this study was to determine the effect donor features, including age, death-to-preservation time, preservation-to-surgery graft rating, and endothelial cell on visual refractive outcomes complications occurring after deep anterior lamellar keratoplasty (DALK) in patients with keratoconus.In retrospective study, 290 consecutive keratoconic eyes underwent DALK using corneas different qualities, ranging from fair excellent. Donor were stored intermediate-term storage medium. data...