Factors Affecting Visual Quality After Phacoemulsification Combined With Intraocular Lens Implantation In Patients With Primary Angle-closure Glaucoma

The leading causes of blindness worldwide are glaucoma and cataracts.Given that glaucoma and cataracts are both age-related diseases,studies have shown up to 20% of patients have concomitant disease and a significant proportion of phacoemulsification cataract surgery is performed in patients with glaucoma.Recent studies have shown phacoemulsification can lead to significant intraocular pressure(IOP)reductions after surgery.Moreover,anterior chamber and angle anatomy have also been shown to change after modern cataract surgery.Although these anatomic changes might be beneficial toward aqueous outflow and IOP,it is unclear how they might affect refractive outcomes,especially in patients with glaucoma.As demand for precise refractive outcomes has increased,there has been continuing research into optimizing refractive outcomes.Recently,the introduction of anterior-segment optical coherence tomography(AS-OCT)has enabled us to perform quantitative measurements of biometric parameters,such as anterior chamber depth(ACD),iris curvature,angle width,and lens vault.LV,which represents the volume of the lens anterior to the plan of the scleral spur,has been reported as the parameter associated with angle closure.It's reported that LV was significantly associated with refractive outcomes in patients with glaucoma.The most critical element of a successful cataract surgery is obtaining excellent postoperative refractive outcomes.Although recent advancements in the measurements of the biological parameters of the eye(axial length,lens vault,corneal curvature,anterior chamber depth)and IOL power formula have improved the predictability of IOL power calculations,unsatisfactory refractive outcomes are still a concern following cataract surgery.The purpose of our study was to address these refraction errors by evaluating the refractive outcomes of patients with glaucoma compared with patients without glaucoma who had phacoemul sification cataract surgery.