Measurement of early changes in anterior chamber morphology after cataract extraction measured by anterior segment optical coherence tomography.

Autor: Kasai, Kozue, Takahashi, Genichiro, Kumegawa, Koichi, Dogru, Murat
Předmět:
Zdroj: Graefe's Archive of Clinical & Experimental Ophthalmology; Oct2015, Vol. 253 Issue 10, p1751-1756, 6p
Abstrakt: Objective: To evaluate the serial changes in anterior chamber depth (ACD) and angle parameters early after cataract surgery using anterior segment optical coherence tomography (ASOCT). Methods: This was a retrospective chart review, case-control study; 150 eyes of 106 patients who underwent cataract surgery. Based on ACD and angle findings, the eyes were classified into two groups, open-angle eyes (87 eyes) and narrow-angle eyes (63 eyes). ASOCT was used to measure ACD and angle parameters (angle opening distance, angle recess area, trabecular iris space area, and trabecular iris angle (TIA []). Serial changes in each group were measured before and 1 day, 1 week, and 1 month after cataract surgery, and the differences between the two groups were compared. Results: ACD and all angle parameters in both groups at each examination time after cataract surgery were significantly different from the preoperative values ( p < 0.01). In addition, all angle parameters significantly differed between the two groups at each examination time after cataract surgery ( p < 0.001). However, ACD after surgery was not significantly different, irrespective of ACD before surgery. ACD and TIA500 both showed significantly greater changes from before surgery to 1 day after surgery in narrow-angle eyes compared to open-angle eyes ( p < 0.001). Conclusions: Cataract surgery increases ACD and all angle parameters early after the surgery. However, the degree of angle widening in narrow-angle eyes was not as much as that in open-angle eyes, suggesting that factors other than the lens influence the angle closure. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index