Evaluation of convergence, accommodation and fusional vergence in pre-presbyopes with asthenopia
African Vision and Eye Health
| Field | Value | |
| Title | Evaluation of convergence, accommodation and fusional vergence in pre-presbyopes with asthenopia | |
| Creator | Alrasheed, Saif H. Aljohani, Saeed | |
| Description | Background: Pre-presbyopes may suffer from ocular symptoms such as asthenopia of near work.Aim: This study aimed to evaluate near points of convergence, amplitudes of accommodation, and fusional vergence among pre-presbyopes with asthenopia symptoms.Setting: The study was conducted at El-Walidain Eye Hospital, Khartoum, Sudan in 2022.Methods: The study was a hospital-based prospective, including 107 pre-presbyopes aged 35–40 years who complained of asthenopia symptoms. Clinical examinations included an assessment of amplitude of accommodation, near point of convergence and fusional vergence.Results: The findings showed receded in near points of convergence and a decrease in the accommodation was highly significantly associated with increased age among emerging presbyopes with asthenopia symptoms (p = 0.0001). Conversely, positive and negative fusional vergence amplitudes were not significantly correlated with age with p = 0.109 and p = 0.355, respectively. Positive and negative fusional amplitudes were not significantly different between males and females (p ˃ 0.05). Esophoria was more common in pre-presbyopia 62 (57.4%) and exophoria 45 (43.6) with p = 0.503.Conclusion: The pre-presbyopes presented with low accommodation amplitude and receded near point of convergence, but without significant changes in positive and negative fusional vergence amplitudes.Contribution: This study added by demonstrating how early presbyopia altered accommodation amplitude and near point of convergence significantly while having no significant impact on amplitudes of positive and negative fusional vergence. | |
| Publisher | AOSIS | |
| Date | 2024-04-16 | |
| Identifier | 10.4102/aveh.v83i1.863 | |
| Source | African Vision and Eye Health; Vol 83, No 1 (2024); 6 pages 2410-1516 2413-3183 | |
| Language | eng | |
| Relation |
The following web links (URLs) may trigger a file download or direct you to an alternative webpage to gain access to a publication file format of the published article:
https://avehjournal.org/index.php/aveh/article/view/863/2368
https://avehjournal.org/index.php/aveh/article/view/863/2369
https://avehjournal.org/index.php/aveh/article/view/863/2370
https://avehjournal.org/index.php/aveh/article/view/863/2371
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