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. Author manuscript; available in PMC: 2021 Jul 21.
Published in final edited form as: Prog Retin Eye Res. 2020 Nov 17;83:100917. doi: 10.1016/j.preteyeres.2020.100917

Fig. 7. Cataract surgery changes outflow system vector forces, favoring improved outflow.

Fig. 7.

(A) High-resolution MRI of a 74-year-old. The crystalline lens is present in the right image, but in the fellow eye of the left image, an artificial lens replaces the crystalline lens. Note the posterior shift of the ciliary body after cataract surgery. The haptic is perpendicular to the image and appears black. (B) In vivo composite image showing that life-long lens growth displaces the uvea anteriorly. Backward movement of the ciliary body induces vector forces pulling the scleral spur both posteriorly and inward. (C) Intraocular pressure (IOP) before and after cataract surgery in the Ocular Hypertension Treatment Study. Month 0 is the study visit that the participant reported cataract surgery, or a randomly selected, corresponding date in the control group. Error bars are ± two standard errors of the mean. (D) Final IOP changes in combined postoperative years following cataract surgery grouped by presurgical IOP (PO is postoperative) (The 8th, 9th, and 10th year pooled data represents the 144 patients.) (A), (B) and (D) from Poley B, IOP after cataract surgery in open-angle glaucoma. J Cataract Refract Surg 35,1946–1955, 2009, (C) from Mansberger S, IOP after cataract surgery, Ophthalmology 119, 1826–1831, 2012.