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Minjie Chen, wenwen he, yi lu, xiangjia zhu; The anterior chamber volume after cataract surgery changed less in patients with longer axial length. Invest. Ophthalmol. Vis. Sci. 2018;59(9):2131.
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© ARVO (1962-2015); The Authors (2016-present)
To investigate the changes in anterior chamber volume (ACV) over time after uneventful cataract surgery and identify potential factors associated with the change in ACV.
It’s a prospective cohort study. Fifty-one patients who underwent uneventful cataract surgery were enrolled. Ophthalmic examinations were performed before surgery and at 1 day, 1 week, and 1 month after surgery. ACV was measured by swept-source optical coherence tomography. Anterior chamber depth (ACD) and angle widths were also measured. The associations of preoperative posterior vitreous detachment (PVD) and axial length (AXL) with the change in ACV were determined by multiple linear regression analysis with adjustment for age, gender, and operated eye.
Compared with the preoperative value, ACV increased significantly after surgery at each time-point (all P < 0.001, repeated-measures ANOVA followed by the LSD test). ACV was also greater at 1 week than at 1 day after surgery (P < 0.001; Student’s t test). Both AXL and presence of PVD were significantly associated with the change in ACV at 1 day after surgery (R = 0.602, F = 4.099, P = 0.005; multiple linear regression). However, these two factors were not significantly associated with the change in ACV from 1 day to 1 week after surgery.
ACV increased during the first week after cataract surgery and then stabilized thereafter. The absorption of irrigation fluid contributes to the ACV change postoperatively. Eyes with a longer AXL and PVD tended to show smaller increases in ACV at one day post-surgery, however, the association was insignificant from 1 day to 1 week after surgery.
This is an abstract that was submitted for the 2018 ARVO Annual Meeting, held in Honolulu, Hawaii, April 29 - May 3, 2018.
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