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An overlooked effect of systemic anticholinergics: alteration on accommodation amplitude
Mehmet Ali Sekeroglu1, Emre Hekimoglu2, Mustafa Alpaslan Anayol1
1Department of Ophthalmology, Ulucanlar Eye Training and Research Hospital, Ankara 06230, Turkey.
Aim:
To investigate the effect of oral solifenacin succinate, tolterodine-L-tartarate and oxybutinin hydrochloride (HCl) on accommodation amplitude.
Methods:
Female overactive bladder syndrome (OAB) patients who were planned to use oral anticholinergics, patients that uses solifenacin succinate 5 mg (Group I, n=25), tolterodine-L-tartarate 4 mg (Group II, n=25), and oxybutinin HCl 5 mg b.i.d (Group III, n=25) and age matched healthy female subjects (Group IV, n=25) were recruited and complete ophthalmological examination and accommodation amplitude assessment were done at baseline and 4wk after initiation of treatment.
Results:
The mean age of 100 consecutive female subjects was 51.6±5.7 (40-60)y and there were no statistically significant difference with regard to the mean age (P=0.107) and baseline accommodation amplitude (P=0.148) between study groups. All treatment groups showed a significant decrease in accommodation amplitude following a 4-week course of anticholinergic treatment (P=0.008 in Group I, P=0.002 in Group II, P=0.001 in Group III), but there was no statistically significant difference in Group IV (P=0.065).
Conclusion:
A 4-week course of oral anticholinergic treatment have statistically significant effect on accommodation amplitude. Clinicians should avoid both overestimating this result, as this would unnecessarily restrict therapeutic possibilities, and also underestimating it which may lead to drug intolerance.
Insights
Oral anticholinergic medications like solifenacin succinate, tolterodine, and oxybutynin significantly reduce accommodation amplitude in women. This effect on near vision should be considered by clinicians when prescribing these overactive bladder treatments.
Area of Science:
- Ophthalmology
- Pharmacology
- Urology
Background:
- Overactive bladder (OAB) is commonly treated with oral anticholinergic medications.
- These medications, including solifenacin succinate, tolterodine, and oxybutynin hydrochloride (HCl), can have systemic side effects.
- The impact of these anticholinergics on ocular accommodation is not fully understood.
Purpose of the Study:
- To investigate the effect of three common oral anticholinergic drugs on the amplitude of accommodation.
- To compare the effects of solifenacin succinate, tolterodine-L-tartarate, and oxybutynin HCl on visual function.
Main Methods:
- A study involving 100 female participants, including OAB patients and healthy controls.
- OAB patients were divided into three groups receiving solifenacin succinate (5 mg), tolterodine-L-tartarate (4 mg), or oxybutynin HCl (5 mg b.i.d) for 4 weeks.
- Ophthalmological examinations and accommodation amplitude assessments were performed at baseline and after 4 weeks.
Main Results:
- All three anticholinergic treatment groups demonstrated a statistically significant decrease in accommodation amplitude after 4 weeks.
- No significant change in accommodation amplitude was observed in the healthy control group.
- Baseline characteristics, including age and accommodation amplitude, were comparable across all groups.
Conclusions:
- A 4-week course of oral anticholinergic treatment significantly affects accommodation amplitude.
- Clinicians should be aware of this visual side effect to avoid both under- and overestimation of its clinical significance.
- This finding may influence patient tolerance and therapeutic choices for OAB management.
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