Immediate Postoperative Difference of Eyelid Height Based on Intraoperative Measurement of Levator Aponeurosis Advancement in Patients with Unilateral Ptosis.

Purpose: To determine the relationship between marginal reflex distance (MRD-1) outcomes and the distance of levator aponeurosis advancement.

Methods: This retrospective observational study included patients with acquired unilateral aponeurotic ptosis, who underwent small-incision anterior levator advancement. The distance of levator advancement, and intra-operative MRD-1 in the sitting position, were analyzed to determine a correlation between the two.

Clinical Significance of the Inferomedial Orbital Strut in Orbital Blowout Fractures: Incidence of Symptomatic Diplopia in a Fractured vs. Intact Strut.

: This study aims to compare the clinical findings, particularly symptomatic diplopia, associated with an inferomedial orbital strut fracture versus intact strut and to determine the clinical significance of the inferomedial orbital strut in patients with orbital floor and medial orbital wall fractures. : A 10-year retrospective observational study involving orbital blowout fracture cases was conducted in our institution. Patients with fractures of the orbital floor medial to the infraorbital groove and medial orbital wall, as seen on computed tomography (CT) scans, were included in this study.

Lacrimal Canalicular Wall Dehiscence/Thinning Found in Adults: A Case Series.

We retrospectively reviewed the medical records of all patients diagnosed with lacrimal canalicular wall dehiscence/thinning from January 2020 to January 2024 and found three patients. Two patients were male, and the other patient was female. Patient ages ranged from 53 to 82 years.

Clinical characteristics and associated features of pure orbital roof fractures: A ten-year retrospective review.

Purpose: To present the demographics and clinical characteristics of pure (rim-sparing) orbital roof fractures.

Methods: This retrospective observational study used 10 years of data from a single institution. Patient age, sex, laterality, field of binocular single vision, associated injuries, and radiologic features were analyzed.

Sports-Related Pure Orbital Blowout Fractures in Japan: Differences in Demographic and Clinical Characteristics between Sports.

The aim of this study was to present the demographic and clinical characteristics of sports-related pure (rim-sparing) orbital blowout fractures and to analyze these differences by type of sport. Ten years of sports-related orbital fracture data were accumulated. Patients were classified into similar sports (i.

Incidence of Pure Orbital Fractures with Concomitant Lacrimal Drainage System Injury in the Japanese Population: A Retrospective Study.

Purpose: This study aims to determine the incidence of pure orbital fractures with concomitant lacrimal drainage system injuries.

Methods: A retrospective observational study involving 956 sides from 940 pure orbital blowout fracture patients was conducted in our institution. Patients with concomitant orbital rim fracture and those with old orbital fractures were excluded.

A Comparative Analysis of the Incidence of Pediatric Orbital Fractures Before and During the COVID-19 Pandemic in the Japanese Population.

Introduction:  The aim of this study is to compare data on the incidence of pediatric orbital fractures before the onset of the coronavirus disease 2019 (COVID-19) pandemic and during the period of the pandemic in the Japanese population.

Methods: This retrospective, single-center, observational study including 225 patients (226 sides) aged ≤ 18 years old diagnosed with orbital fracture was conducted in our institution from March 2017 to April 2023. The study compared the incidence of pediatric orbital fractures in the pre-pandemic period from March 2017 to March 2020 and during the pandemic from April 2020 to April 2023.

Orbital Trapdoor Fracture With Extraocular Muscle Entrapment in Adults: A Case Series.

Purpose: To report adult patients with an orbital trapdoor fracture with extraocular muscle entrapment.

Methods: We retrospectively reviewed 566 adult patients (>18 years) with a pure orbital fracture who were referred to us from January 2016 to May 2023. The following data were collected: age, sex, affected side, causes of injury, concomitant ocular injury and nasal bone fracture, presence or absence of oculocardiac reflex and infraorbital nerve hypesthesia, period from injury to surgery, follow-up period, and pre- and postoperative limitation of extraocular muscle motility and fields of a binocular single vision.

Thickness of the Medial Pretarsal Adipose Tissue in the Upper Eyelid among the Japanese Population.

Purpose: To investigate the medial pretarsal adipose tissue thickness of the upper eyelid in the Japanese population.

Methods: Sixty-two whole upper eyelids were harvested from 35 Japanese cadavers and fixed in paraffin. The samples were cut into 5 µm sagittal microsections and stained with hematoxylin and eosin, as well as Masson's trichrome.

Lacrimal Gland Abscess: A Case Report.

Introduction: The aim of the study was to report a rare case of lacrimal gland abscess.

Case Presentation: A 47-year-old woman noticed upper eyelid swelling on the right side 1.5 months before referral to our service.

Surgical Outcomes of Bilateral Inferior Rectus Muscle Recession for Restrictive Strabismus Secondary to Thyroid Eye Disease.

This retrospective, observational study examined the surgical outcomes of bilateral inferior rectus (IR) recession in thyroid eye disease. Twelve patients who underwent bilateral IR muscle recession were included in the study. Surgical success was defined as patient achievement of the following conditions: (1) a postoperative angle of vertical ocular deviation of ≤3°; (2) a postoperative cyclotropic angle of ≤2°; (3) postoperative binocular single vision, including the primary position; and (4) postoperative enlargement of the field of binocular single vision.

Differences in patient characteristics between subconjunctival herniated orbital fat in the superotemporal quadrant and the other quadrants: An observational study.

Subconjunctival herniated orbital fat (SHOF) usually occurs in the superotemporal quadrant, and SHOF located in other quadrants is extremely rare. This study aimed to compare the patient characteristics between patients with SHOF in the superotemporal quadrant and those with SHOF in other quadrants. This is a retrospective study of 45 patients with SHOF who were referred to our institution between January 2015 and January 2023 and 14 previously reported patients in published case reports of SHOF that were not located in the superotemporal quadrant.

Orbital Langerhans Cell Histiocytosis: A Case Report.

An eight-year-old boy presented with a one-month history of left eyelid swelling. The patient was diagnosed with periorbital cellulitis at another clinic and was treated with oral antibiotics. However, the swelling did not subside.

Treatment strategies for orbital gas-producing necrotizing fasciitis secondary to odontogenic maxillary sinusitis: Technical notes.

This paper presents treatment strategies for orbital necrotizing fasciitis (NF) in a case of a 33-year-old male diagnosed with orbital NF, which developed after dental root canal treatment. Although orbital NF is rare, it is rapidly progressive and can easily lead to the loss of tissue and visual function, sometimes to a life-threatening extent. Prompt and adequate treatment has been a challenge yet remains quite essential.

Dermolipoma in an Unusual Location: A Case Report and Literature Review.

A healthy nine-year-old Japanese male presented with a history of inferonasal conjunctival mass that was noted to increase in size in a few years' time. Initial examination revealed a 10-mm soft yellowish inferonasal conjunctival mass with a whitish surface. The rest of the examination findings were unremarkable.

Multiple CD34-Negative Orbital Solitary Fibrous Tumors in a Pediatric Patient.

A 12-year-old Japanese male presented with a 2-month history of headache that was later on associated with diplopia, painless proptosis of the OS, and left ophthalmoplegia. Initial examination revealed a 7-mm OS protrusion, which worsened to 9 mm in less than a month. Preoperative visual acuity worsened from 1.