Aim: To determine whether changes in orthoptic status take place during withdrawal from heroin and/or methadone.
Method: A prospective study of patients, using a repeated measures design, attending a 5 day naltrexone compressed opiate detoxification programme.
Results: 83 patients were seen before detoxification (mean age 27.1 (SD 4.6) years) and 69 after detoxification. The horizontal angle of deviation became less exo/more eso at distance (p<0.001) but no significant change was found at near (p = 0.069). Stereoacuity, visual acuity, and convergence were found to be reduced in the immediate post-detoxification period. Prism fusion range, refractive error, subjective accommodation, and objective accommodation at 33 cm did not reduce but a small decrease was found in objective accommodation at 20 cm.
Conclusions: The eso trend found in these patients may be responsible for the development of acute concomitant esotropia in some patients undergoing heroin detoxification. However, the mechanism for this trend does not appear to be caused by divergence insufficiency or sixth nerve palsy.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1772312 | PMC |
| http://dx.doi.org/10.1136/bjo.2003.032334 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
How do children with Cerebral Visual Impairment (CVI)-related visual difficulties perform on key academic domains in grade 1?
Child Neuropsychol
January 2025
Luxembourg Centre for Educational Testing, University of Luxembourg, Esch-sur-Alzette, Luxembourg.
Previous research estimated a prevalence of 3.4% Cerebral Visual Impairment (CVI)-related visual problems within primary school children, potentially compromising students' performance. This study aimed to clarify how CVI-related visual difficulties relate to academic performance in standardized achievement tests.
View Article and Find Full Text PDFPurpose: The aim of the current study was to evaluate changes in choroidal circulation hemodynamics after periocular skin warming at 40°C using laser speckle flowgraphy (LSFG).
Methods: Twenty-four right eyes of 24 healthy participants were included. Changes in choroidal circulation hemodynamics were determined using LSFG to evaluate the mean blur rate (MBR) of the macula, which represents choroidal blood flow velocity.
Gender issues in myopia: a changing paradigm in generations.
Eur J Epidemiol
December 2024
Department of Ophthalmology, Erasmus MC, Rotterdam, Zuid-Holland, The Netherlands.
Myopia is becoming an important cause of visual impairment. Determining risk profiles will help to develop targeted prevention strategies. This study aims to explore the difference in myopia development between genders in two cohorts representing different generations, and to assess whether hypothetical interventions targeting education or lifestyle factors would reduce a gender gap.
View Article and Find Full Text PDFUsage status of biologics for the chronic treatment of optic neuritis in neuromyelitis optica spectrum disorders in Japan.
Jpn J Ophthalmol
October 2024
Department of Orthoptics and Visual Science, Kitasato University School of Allied Health Sciences, Kanagawa, Japan.
Purpose: To investigate the usage status of biologics for the chronic treatment of optic neuritis including neuromyelitis optica spectrum disorders in Japan.
Design: Multicenter retrospective case series.
Methods: Patients diagnosed with anti-aquaporin 4 antibody (AQP4-Ab) positive optic neuritis and had been initiated on biologics (satralizumab, eculizumab, and inebilizumab) between January 2020 and August 2022 were identified at 30 facilities in Japan.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!