You searched for "optical"

3582 results found

Could midbrain volume on MRI be used to guide diagnosis of progressive supranuclear palsy?

The authors present a cohort study, of patients with a likely diagnosis of progressive supranuclear palsy (PSP) using a combination of prospective assessment and retrospective review. The cohort comprised of 14 patients; the data for six patients was obtained through...

Single case report of horizontal gaze paresis due to medial pontine haemorrhage

The authors report a single case (80-year-old female) of bilateral horizontal conjugate gaze palsy due to a dorsal median pontine haemorrhage. The patient presented with skew deviation, bilateral horizontal conjugate gaze palsy, vertical gaze palsy, ipsilateral lower motor neuron facial...

Prevalence of anisometropia and associated factors in Iranian children

The aim of this study was to determine the prevalence of anisometropia and the associated demographic and biometric risk factors in children. Data were taken from the first phase of the Shahroud Schoolchildren Eye Cohort cross-sectional study. From this phase,...

Factors associated with inferior oblique transposition surgery and occurrence of anti-elevation syndrome

The purpose of this study was to correlate the frequency of anti-elevation syndrome (AES) with the magnitude of the anterior transposition of the inferior oblique. This was a retrospective study of 312 eyes of 170 patients. Mean age at surgery...

Augmented surgery with BTA for large angle strabismus correction

This retrospective study reports the results of botulinum toxin A (BTA) augmented bilateral recession or monocular recession / resection (RR) for patients with large angle strabismus. Twenty-four patients were recruited: 10 female, mean age 9.2 ±13.6 years, 20 esotropia and...

Reporting the development and pilot use of fixable surgical instruments

This study reports the development of instruments to substitute traction sutures during strabismus surgery and to act in place of surgical assistance. Three types of instruments were developed: (1) fixable multi-functional forceps; (2) fixable muscle hook; and (3) fixable retractor....

Strabismus prevalence in a Pakistan population

The aim of this study was to compile the available literature reporting the prevalence of strabismus in Pakistan and calculate the pooled prevalence of strabismus in the Pakistan population. Meta analysis was conducted with 10 studies with a total of...

RCT to detect palpebral fissure changes after horizontal strabismus surgery

The aim of this prospective randomised controlled trial was to compare changes of vertical palpebral fissure h8 after bilateral lateral rectus (BLR) recession vs unilateral lateral rectus recession/medial rectus muscle scleral plication (RRP) for treatment of intermittent exotropia (IXT). Forty...

OCT in proliferative diabetic retinopathy

This report set out to describe the anatomical relationships between retinal neovascular complexes (NVC), the posterior vitreous, and the vitreoretinal interface in patients with proliferative diabetic retinopathy using spectral domain OCT. The following was recorded for each NVC 1) posterior...

Preoperative RPE alterations in macular holes

This retrospective interventional case series from Japan assessed whether preoperative alterations of the retinal pigment epithelial (RPE) in idiopathic macular holes correlated with postoperative functional and morphological changes in the macula. Fifty-nine eyes had preoperative Spectralis OCT using the ‘detailed’...

Retinoblastoma chemotherapeutic drugs and their toxic effects on RPE cells

There is reported clinical evidence of retinal pigment epithelium (RPE) alterations after intra-arterial (IAC) and intravitreal chemotherapy (IViC) of retinoblastoma. The purpose of this study was to investigate the cellular toxic effects of melphalan, topotecan and carboplatin on the RPE...

Transfected RPE cells inhibit AMD in rats

Age-related macular degeneration (AMD) is a leading cause of blindness in the elderly. Wet AMD is characterised by choroidal neovascularisation, new vessels into the retina, leading to leakage and tissue damage. Many proangiogenic factors particularly vascular endothelial growth factor (VEGF)...