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Iran prevalence of amblyopia

The authors aimed to determine the prevalence of amblyopia, its relation with refractive errors and its determinants. The target population was all children aged seven years in Iran. There were 3675 of 4157 children who participated (88.4%) with final analysis...

Binocular summation with low contrast

The magnitude of binocular summation was investigated in normal control subjects using four different letter charts of varying type with fixed and variable contrast levels and spatial frequency to determine which tests most readily reveal binocular summation in normal subjects....

BT for intermittent exotropia

This study aimed to evaluate the effect of botulinum toxin (BT) on the amount of deviation and fusional control state of intermittent exotropia. Twenty-one patients (five male and 16 female) aged five to 18 years with progression of exotropia were...

Air toxicity on retinal pigment epithelium

This study investigated the potential toxic effects of air on primary human retinal pigment epithelial (RPE) cells in vitro. Clinically during pars plana vitrectomy air is used as either a temporary tamponade during air-fluid exchange or mixed with gas to...

Association between smoking and uveitis

This is a retrospective, population-based, case-control study from the general Kaiser Hawaii population. Over a two year period (1 January 2006 to 31 December 2007), there were 100 confirmed incident cases of uveitis. Two control groups were created, with 522...

Toric intraocular lens rotation related to the capsulorrhexis

The risk factors for postoperative rotation in the early post-operative period; a longer axial length, younger patients, and with the rule astigmatism as described by Miyake T et al. (JCRS 2014) in a case series of six eyes. This letter...

Influence of overall intraocular lens diameter on rotational stability

It has been shown that approximately one in three patients undergoing cataract surgery have >1.0D corneal astigmatism and managing this during surgery is important to achieve good refractive outcomes. One of the widely used ways of reducing preoperative astigmatism during...

Optic nerve head perfusion response to reduced blood pressure and increased intraocular pressure

The purpose of this prospective study was to test the hypothesis that blood flow autoregulation in the optic nerve head has less reserve to maintain normal blood flow where there is a blood pressure induced decrease in ocular perfusion pressure...

Literature review of isolated ocular motor nerve palsies

Patients aged over 50 presenting with isolated nerve palsies of the third (pupil sparring), fourth or sixth nerves, are often described as having microvascular extraocular palsies. This review looks critically at the evidence surrounding these microvascular non-arteritic extraocular palsies and...

Surgical outcomes in third nerve palsy

The authors of this article explore the factors associated with successful surgical outcomes in third nerve palsy, which is known to be difficult to treat. A number of case notes were reviewed for patients who underwent surgery or botulinum toxin...

Structural effects of migraine on the retina

Migraine is a common, chronic, multifactorial neuro-vascular disorder typically characterised by recurrent attacks of disabling headache and autonomic nervous system dysfunction (migraine without aura). Up to one third of patients also have neurological aura symptoms (migraine with aura). The objective...

Long-term retinal changes following unilateral retrobulbar optic neuritis

The aim of this study was to assess the longitudinal changes in retinal nerve fibre layer (RNFL) thickness after a first attack of optic neuritis and to investigate the impact of treatment on RNFL thinning at one year after the...