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Static subjective visual vertical (SVV) in the normal visual system
Graviception is the perception of a persons’ orientation relative to gravitational force. This can be measured by means of subjective verticals, which can be divided into three tests: subjective visual vertical (SVV), subjective postural vertical (SPV) and subjective haptic vertical...
Light reflex in preterm infants
In this study, the pupillary size and light reflex was examined in premature infants using infrared video-pupillography and stimuli of red and blue light. Only eyes of infants without retinopathy of prematurity were included in the study. Pupillary light reflexes...
Managing blepharophimosis
The authors present a prospective study of a one-stage technique for managing both telecanthus and ptosis seen in blepharophimosis syndrome. The technique involves carrying out a Y to V medial canthoplasty followed by a frontalis suspension which the authors carry...
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....
A surgical option for congenital ptosis
The authors describe a surgical technique to manage congenital ptosis. They present 30 patients with severe congenital ptosis, MRD1 varying between -2mm and 1mm. Intervention was carried out early to prevent amblyopia. All cases had surgery before age seven with...
Latanoprost in the treatment of congenital glaucoma
The aim of this study was to investigate the glaucoma control of latanoprost therapy in primary congenital glaucoma (PCG) and assess the factors affecting long-term outcome. Eighty-one eyes of 44 patients with PCG and 42 eyes of 29 patients with...
Differential diagnosis of inflammatory optic neuritis
The authors present the differential diagnosis of inflammatory optic neuritis (ON) to include multiple sclerosis, infectious optic neuritis, systemic disease and neuromyelitis optica (NMO). The features of ON for the varying aetiologies are detailed including incidence and overlap. In acute...
Test retest values for TNO, Frisby, Lang stereopad and Asteroid stereoacuity tests
This study aimed to determine test-retest variability of four different measurements of stereoacuity including TNO, Frisby, Lang stereopad and Asteroid, and compare stereoacuity values between tests in an adult population. Participants were >18 years of age (mean 38 years, SD...Haag-Streit Academy to host an ‘iTrack Advance Masterclass’
Haag-Streit UK is delighted to confirm the launch of the iTrack Advance Masterclass. This will take place at Vision Engineering Headquarters, Woking on Friday 28th July 2023.
Surgery for third nerve palsy (2019)
The authors present a new technique for split muscle medial transposition surgery of the lateral rectus plus union with the distal split stump of the medial rectus. This increases the length of the contracted lateral rectus through the addition of...
Use of Bagolini filter bars
The authors measured the percentage light transmission of filters on different Bagolini filter bars to evaluate whether a difference exists in density of suppression or strength of abnormal binocular single vision (BSV). A Sekonic dual spot photometer was used to...
