Eye surgery

BACKGROUND: The availability of donated eye tissue saves and enhances vision in transplant recipients; however, the current demand for tissue surpasses the available supply. Corneal donor shortages lead to increased wait times, delayed surgeries, prolonged visual impairment, and increased inconvenience to patients requiring eye tissue transplantation. A web-based application was previously developed to facilitate easy and intuitive submission of potential donor information. OBJECTIVE: The primary objectives of this study were to assess health care professionals' attitudes toward the potential application and evaluate its effectiveness based on user feedback and donor registrations through the application...

PURPOSE: Computational models can help clinicians plan surgeries by accounting for factors such as mechanical imbalances or testing different surgical techniques beforehand. Different levels of modeling complexity are found in the literature, and it is still not clear what aspects should be included to obtain accurate results in finite-element (FE) corneal models. This work presents a methodology to narrow down minimal requirements of modeling features to report clinical data for a refractive intervention such as PRK...

PRECIS: This meta-analysis examines the comparative efficacy of phacoemulsification with and without Kahook Dual Blade Goniotomy in individuals with glaucoma and cataract, aiming to elucidate optimal surgical approaches for coexisting conditions. PURPOSE: The purpose of this current study is to compare the effect of combining Kahook Dual Blade (KDB) goniotomy with phacoemulsification versus phacoemulsification alone on intraocular pressure (IOP) and medication reduction in patients with glaucoma and cataract...

PRCIS: In this retrospective study, Non-Penetrating-Deep-Sclerectomy and Penetrating-Deep-Sclerectomy interventions showed similar >90% complete success rates at one-year post-surgery. However, Non-Penetrating-Deep-Sclerectomy achieved a superior safety profile in terms of best-corrected visual acuity recovery and rates of post-surgical complications. PURPOSE: Comparing the surgical outcomes of two surgical techniques: non-penetrating deep sclerectomy (NPDS) and penetrating deep sclerectomy (PDS)...

SIGNIFICANCE: Necrotizing soft-tissue infections (NSTIs) are life-threatening infections with a cumulative case fatality rate of 21%. The initial presentation of an NSTI is non-specific, frequently leading to misdiagnosis and delays in care. No current strategies yield an accurate, real-time diagnosis of an NSTI. AIM: A first-in-kind, observational, clinical pilot study tested the hypothesis that measurable fluorescence signal voids occur in NSTI-affected tissues following intravenous administration and imaging of perfusion-based indocyanine green (ICG) fluorescence...

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PURPOSE: To investigate the impact of corneal higher-order aberrations (HOAs) on predicted corrected distance visual acuity (CDVA) in patients with keratoconus at varying simulated pupil apertures. SETTING: Ophthalmology clinics, Medical University of South Carolina, USA. DESIGN: Retrospective chart review study. METHODS: 56 eyes with keratoconus were examined using Scheimpflug tomography during routine examinations prior to medical intervention...

The epicanthus is a common feature of the Asian eyes. A prominent medial epicanthal fold gives the impression of a blunted affect and the procedure for its removal, the medial epicanthoplasty, is a very commonly requested by Asian patients. This may be performed as an isolated procedure or more commonly in combination with the upper blepharoplasty. Many conventional medial epicanthoplasty techniques are based on skin flaps transposition and excisions, usually variations of the V-Y, W or Z-plasties (1-4). While these have been variably successful at correcting the epicanthal fold, the common problem is significant scarring in the medial canthal and lower eyelid regions (5-8)...

PURPOSE: This study was conducted to develop a new optimized phacoemulsification technique for Morgagnian cataract taking into account the anatomical and topographic parameters of the lens nucleus. MATERIAL AND METHODS: A working classification of Morgagnian cataract was developed based on the size of the nucleus: if the edge of the nucleus is visualized at the upper edge of the pupil or between the upper edge and the middle of the pupil, it was classified as an initial stage of Morgagnian cataract with a large nucleus; if the upper edge of the nucleus is visualized in the middle of the pupil and below, it was classified as an advanced stage of Morgagnian cataract with a small nucleus...

BACKGROUND: Orbital hypertelorism is a rare congenital condition caused by craniofacial malformations. It consists of complete orbital lateralization, characterized by an increase in distance (above the 95th percentile) of the inner canthal (ICD), outer canthal, and interpupillary distances. It can be approached surgically, and the main techniques are box osteotomy and facial bipartition. The surgical procedure is usually performed before the age of 8. We describe here two patients who underwent late surgical correction using the box osteotomy technique...

Acquired strabismus in high myopia is typically fixed in the positions of adduction and depression, with restrictions in both abduction and elevation. As a treatment for myopic strabismus fixus, the Yokoyama procedure is effective. We report a case of strabismus fixus with a long axial length (34 mm), in which abduction limitation was improved by the Yokoyama procedure with medial rectus recession. A 68-year-old woman was referred for strabismus fixus in her right eye. Her right eye was fixed in the positions of adduction and depression, with restrictions in both abduction and elevation...

KEY CLINICAL MESSAGE: Conjunctival hemangioma and lymphangioma are rare and their long-term follow-up description has been scarce. In our two patients, conjunctival vascular and lymphatic malformations remained stable in decades and could be observed without treatment. ABSTRACT: A 65-year-old woman with diabetic retinopathy underwent glaucoma surgery to construct a filtering bleb adjacent to conjunctival hemangioma, and showed bleb function and stable hemangioma for a decade...

PURPOSE: Understanding sociodemographic factors associated with poor visual outcomes in children with juvenile idiopathic arthritis-associated uveitis may help inform practice patterns. PATIENTS AND METHODS: Retrospective cohort study on patients <18 years old who were diagnosed with both juvenile idiopathic arthritis and uveitis based on International Classification of Diseases tenth edition codes in the Intelligent Research in Sight Registry through December 2020...

PURPOSE: This study aimed to evaluate the accuracy of 12 intraocular lens (IOL) power calculation formulae for eyes that have undergone both radial keratotomy (RK) and laser assisted in situ keratomileusis (LASIK) surgery to determine the efficacy of various IOL calculations for this unique patient group. Currently, research on this surgical topic is limited. METHODS: In this retrospective study, 11 eyes from 7 individuals with a history of RK and LASIK who underwent cataract surgery at Hoopes Vision were analyzed...

OBJECTIVE: To investigate the correlation between higher-order aberrations (HOA) after small incision lenticule extraction (SMILE) and the severity of myopia and astigmatism, along with the relevant factors. These findings will provide valuable insights for decreasing the occurrence of HOA after SMILE and enhancing visual quality. METHODS: A total of 75 patients (150 eyes) with myopia and astigmatism who underwent SMILE were categorized into four groups based on the severity of myopia and astigmatism: Myopia Group 1 (Group M1, spherical diopter ranged from -1...

BACKGROUND: Parry-Romberg syndrome (PRS) is a rare progressive degenerative disorder of unknown etiology. Here we report a rare case of PRS combined with lens subluxation in Eye and ENT hospital of Fudan University, Shanghai. To our knowledge, it is the first reported case of PRS combined with lens subluxation that has been managed surgically with phacoemulsification and CTR placement and IOL implantation in Shanghai. CASE PRESENTATION: A 60-year-old woman was referred for "right visual blur for 2 years" and had persistent right facial paralysis of unknown etiology since the age 12...

OBJECTIVES: To investigate visual outcomes and prognostic factors of patients with Terson syndrome (TS) managed with observation or pars plana vitrectomy (PPV). METHODS: retrospective review of medical records of 117 eyes from 81 patients (43 females) with TS. Main outcome measures were final best corrected visual acuity (BCVA), intraoperative findings and long-term sequelae. RESULTS: 46 (39.3%) eyes were managed conservatively and 71 (60...

PURPOSE: To determine the effectiveness of the correction of corneal astigmatism utilizing the Alcon Image Guidance system (Ft. Worth, Texas) versus manual marking in the orientation of femtosecond laser-assisted astigmatic keratotomy incisions. SETTING: This study was based in a private practice in Albany, New York, USA. DESIGN: Retrospective review of patients undergoing FLACS from January 2018 to June 2022. METHODS: Patients who underwent FLACS with Image Guidance (IG) and without IG were investigated...

UNLABELLED: The influence of various patterns of preliminary femtosecond laser-assisted fragmentation of the lens nucleus on the energy and hydrodynamic parameters of phacoemulsification remains insufficiently studied. PURPOSE: This study evaluates the influence of various patterns of preliminary femtosecond laser-assisted fragmentation of the lens nucleus on the energy, hydrodynamic parameters of phacoemulsification, and the degree of corneal endothelial cell loss...

UNLABELLED: Effective and atraumatic removal of a soft lens nucleus requires different surgical techniques compared to phacoemulsification of a dense nucleus. PURPOSE: This study was conducted to develop a non-ultrasound technique for emulsification of a soft lens nucleus. MATERIAL AND METHODS: Fifty-seven patients (57 eyes) underwent surgery. In 23 cases, early or immature cataracts were detected, and in 34 cases, lens removal was performed for refractive purposes in high myopia and complex myopic astigmatism...