Changes in anterior chamber depth and intraocular pressure after phacoemulsification in eyes with occludable angles

Abstract

No author has a financial or proprietary interest in any material or method mentioned.

Comparing Anterior Segment Ocular Coherence Tomography (AS-OCT), Ultrasound Biomicroscopy (UBM) and Pentacam in Evaluating the Changes of the Anterior Segment Parameters after Phacoemulsification

“…Shin et al [24] found a significant increase in ACD and a significant reduction in IOP (p<0.01) after cataract surgery when they compared non-glaucomatous eyes with open angles or with occludable angles. This deepening in the AC was inversely related to preoperative ACD in the occludable-angle group (P<0.01).…”

Lens parameters as predictors of intraocular pressure changes after phacoemulsification

“…4,5,11,12 Recently, anterior chamber anatomic parameters measured by different anterior segment imaging modalities such as AS-OCT have become the center of focus to predict the amount of IOP reduction after cataract surgery. Most of these studies evaluated the anterior chamber angle and ACD as determinants of IOP drop.…”

“…[1][2][3][4][5][6][7][8][9] This effect seems to be more pronounced in narrow angles (NAs) compared with open angles (OAs). 2,[4][5][6]10 Several studies have been performed to predict the amount of IOP change after cataract surgery on the basis of preoperative factors. These studies have shown that the higher the preoperative IOP and the shallower the anterior chamber depth (ACD), the more pronounced is the change in IOP after cataract surgery.…”

“…These studies have shown that the higher the preoperative IOP and the shallower the anterior chamber depth (ACD), the more pronounced is the change in IOP after cataract surgery. 5,7,[11][12][13] Angle parameters such as angle opening distance (AOD) measured by anterior segment optical coherence tomography (AS-OCT) have also been reported to be associated with IOP reduction after phacoemulsification. 9 However, few studies have examined the relationship between reduction in IOP and lens parameters.…”

Preoperative iris configuration and intraocular pressure after cataract surgery

“…[1][2][3][4][5][6] Proposed mechanisms include relief of subclinical or intermittent angle narrowing, 7,8 widening of the trabecular meshwork spaces and Schlemm canal, 3,4 and the effects of ultrasound on trabecular meshwork cytokine release. 9 Accurate prediction of the IOP change after cataract surgery is of great interest because it would help in the proper selection of cataract surgery, incisional glaucoma surgery, or a combined procedure.…”