American journal of ophthalmology · 2007
Optical coherence tomography assessment of angle anatomy changes after cataract surgery.
СтатьяПоддержка NIH: внешняя программаПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод пока не подготовлен
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Memarzadeh Farnaz, Tang Maolong, Li Yan, Chopra Vikas, Francis Brian A, Huang David
Аннотация
PURPOSE: To evaluate changes in anterior chamber (AC) morphology induced by cataract extraction using anterior segment optical coherence tomography (OCT).
DESIGN: Prospective comparative observational case series.
METHODS: Thirty-two eyes of 32 patients underwent OCT imaging of the angle before and after cataract surgery. Anterior chamber depth (ACD), angle opening distance at 500 microm (AOD(500)) and trabecular-iris space at 500 microm (TISA(500)) were measured pre- and postoperatively. Preoperative lens thickness (LT) and lens position (LP) were calculated.
RESULTS: ACD, AOD(500), and TISA(500) increased significantly after cataract extraction (P < .001). Preoperatively, ACD and LT highly correlated (P = .0083) as did ACD and TISA(500) (P = .0001). TISA(500) correlated with LP (P = .0001) but not with LT (P = .74).
CONCLUSIONS: Changes in angle morphology after cataract surgery can be imaged and objectively quantified by anterior segment OCT. Lens position may have a greater influence on angle width than LT.
DESIGN: Prospective comparative observational case series.
METHODS: Thirty-two eyes of 32 patients underwent OCT imaging of the angle before and after cataract surgery. Anterior chamber depth (ACD), angle opening distance at 500 microm (AOD(500)) and trabecular-iris space at 500 microm (TISA(500)) were measured pre- and postoperatively. Preoperative lens thickness (LT) and lens position (LP) were calculated.
RESULTS: ACD, AOD(500), and TISA(500) increased significantly after cataract extraction (P < .001). Preoperatively, ACD and LT highly correlated (P = .0083) as did ACD and TISA(500) (P = .0001). TISA(500) correlated with LP (P = .0001) but not with LT (P = .74).
CONCLUSIONS: Changes in angle morphology after cataract surgery can be imaged and objectively quantified by anterior segment OCT. Lens position may have a greater influence on angle width than LT.