You searched for "pupillary"
The assessment of pupils and pupillary reactions
1 October 2015
| Li Yen Goh
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EYE - Vitreo-Retinal
Understanding pupillary reactions is vital in understanding basic neuro-opthalmology. It is a skill required in eye casualty, clinics and perhaps most importantly, exams. To start at the beginning, the pupil is the central aperture of the iris, its size controlling...
Management and outcomes of congenital fibrovascular pupillary membranes (CFPM)
Congenital fibrovascular pupillary membranes (CFPM) is defined as a white fibrous membrane across the pupil which may be an ectopic iris tissue arising from the aberrant migration of neural crest cells or a variant of persistent fetal vasculature. The authors...
A novel computerised portable pupillometer detects and quantifies relative afferent pupillary defect
1 February 2016
| Jonathan CP Roos
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EYE - Neuro-ophthalmology
We have all had referrals from A&E telling us that a patient can’t see out of one eye. Sleepily we may ask “Is there an relative afferent pupillary defect (RAPD)?” to evaluate the seriousness of the presentation. The response is...
Bovine pericardium scleral patch graft associated scleritis: Ahmed valve implant for pupillary block glaucoma
Processed bovine pericardium is a lyophilised collagen sheet used as a surgical armamentarium. It renders the material antigenically inert with minimal inflammation [1]. Sclera patch pericardium graft (Tutopatch) is a collagenous membrane derived from solvent preserved, irradiated bovine pericardium [2]...
Using a pupillometer to confirm presence of RAPD in post stroke homonymous hemianopia
1 October 2018
| Claire Howard
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EYE - Neuro-ophthalmology
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Amplitude, latency, pupillary light reflex pathway, pupillometer, retrograde trans-synaptic degeneration
It has been reported that relative afferent pupillary defects (RAPDs) may be present in patients with occipital lobe lesions. However, a small contralateral RAPD due to a difference in the crossed and uncrossed fibres can be difficult to detect using...
Do patients with prolactinomas using dopamine agonist drugs have autonomic dysfunction?
1 December 2022
| Claire Howard
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EYE - Neuro-ophthalmology
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Prolactinoma, cabergoline, dopamine, dynamic pupillary response, static pupillary response
This prospective study aimed to determine whether there is autonomic dysfunction in patients with prolactinomas using dopamine agonist (DA) drugs by measuring static and dynamic pupillary responses using an automatic pupillometric device.Included were 25 eyes from 25 patients who were...
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...
Nerve head in healthy humans using OCT-angiography
1 December 2017
| Chrysostomos D Dimitriou
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EYE - Glaucoma
Optical coherence tomography angiography (OCT-A) is a recent, dyeless, and noninvasive imaging technique for evaluating depth-resolved vascular status by capturing the dynamic motion of the erythrocytes. It provides the flow map of major vessels and capillary plexuses separately in different...
Measuring IPD with PlusoptiX
The authors evaluated the accuracy of the PlusoptiX A04 for measuring pupillary distance as compared to measurements taken by a trained optician. This retrospective review included 256 children who had undilated PA04 screening and had pupil distance measurement done by...
Pupil responses in diabetes
4 February 2021
| Claire Howard
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EYE - Neuro-ophthalmology
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Diabetes mellitus, Diabetic retinopathy, dynamic pupillometry, pupil diameter, static pupillometry
This study aimed to investigate pupillary involvement in patients with type 2 diabetes mellitus (DM) and to evaluate any relationship between severity of diabetic retinopathy (DR) and pupillary responses. Participants included 133 individuals in four groups: proliferative DR (n=21), non-proliferative...
Automated Bruckner device accuracy
The authors developed a Bruckner device, examined volunteers and determined the relation between the luminance of the red fundus reflex and eye rotation. Eye rotation was varied continuously both horizontally (-7 to 8 degrees) and vertically (five degree total range)...
Would automated pupillometry be a useful addition when assessing acute vision loss?
4 August 2021
| Lauren R Hepworth
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EYE - Neuro-ophthalmology
The authors present a two-part study, the first part being an electronic survey of ophthalmologists and optometrists to identify barriers to the routine clinical use of automated pupillometry and the second, a clinical study comparing the swinging light tests and...
