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Characteristics of pupillo-accommodative functions according to time of onset, gender and age in tonic pupil.

AbstractAIM:
To evaluate the characteristics of pupillo-accommodative functions in patients with idiopathic tonic pupil according to the time of onset, gender, and age.
METHODS:
Totally, 15 males and 19 females were divided into 2 groups depending on the time of disease onset: group I (onset <2 months, n=20) and group II (onset >2 months, n=14). A supersensivity test was conducted by applying diluted pilocarpine 0.125% to the eye and accommodative functions were evaluated using the near-point of accommodation (NPA) as the cutoff point, at which the patient experienced blurred vision. Pupil size and the ratio of decrease in the affected pupil after instillation of 0.125% pilocarpine were investigated.
RESULTS:
There was no significant difference between the 2 groups regarding the various pupillary reflex results, including data on the affected pupil size before and after 0.125% pilocarpine, anisocoria, and ratio of pupil decrease. No significant difference in NPA was found between the 2 groups. However, female patients were noted to have greater anisocoria and a faster constriction ratio than those of the male patients (P=0.02 and P=0.04). On subgroup analysis, female patients from group II had larger affected-pupil sizes before 0.125% pilocarpine instillation and longer NPAs than those of the male patients.
CONCLUSION:
No relationship was found between time of onset and dysfunction of pupillo-accommodative functions. Pupillo-accommodative functions and age were not related, except for the NPA.
AuthorsKyung-Min Koh, Ungsoo Samuel Kim
JournalInternational journal of ophthalmology (Int J Ophthalmol) Vol. 6 Issue 5 Pg. 659-61 ( 2013) ISSN: 2222-3959 [Print] China
PMID24195044 (Publication Type: Journal Article)

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