Effect of cataract surgery on intraocular pressure control in glaucoma patients

Hayashi, Ken; Hayashi, Hideyuki; Nakao, Fuminori; Hayashi, Fumio

doi:10.1016/s0886-3350(01)01036-7

Cited by 284 publications

(200 citation statements)

References 38 publications

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“…Many previous studies including ours 22 showed that CS lowers the IOP for several years; [23][24][25] this is consistent with the results obtained in this study. However, IOP in no eyes that underwent surgery was low enough to cause hypotension maculopathy, and was thus considered to be unrelated to the progression of ERM.…”

Section: Discussionsupporting

confidence: 93%

Influence of phacoemulsification surgery on progression of idiopathic epiretinal membrane

Hayashi

2008

Eye

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Purpose To examine whether or not phacoemulsification surgery accelerates the progression of idiopathic epiretinal membrane (ERM) by measuring the degree of ERM. Methods Forty-three consecutive eyes with idiopathic ERM that underwent phacoemulsification surgery were recruited; 41 consecutive eyes with ERM that did not undergo surgery served as controls. Foveal thickness and macular volume were measured using optical coherence tomography at 3 days after surgery (baseline), and at 3, 6, and 12 months after baseline. Visual acuity and the incidence of eyes that underwent ERM peeling surgery were also examined. Results There were no significant differences in the foveal thickness and macular volume between the two groups at baseline. The foveal thickness gradually increased by 7.0% in the cataract surgery (CS) group by 5.3% in the no surgery group at 12 months after surgery. When comparing the groups, no significant differences were found in the foveal thickness, macular volume, or their percentage increases from baseline throughout the 12-month followup period. Only one eye in the CS group underwent ERM peeling surgery within the 12 months. Mean visual acuity did not worsen significantly in either group during follow-up. Conclusion Progression of idiopathic ERM is not accelerated by phacoemulsification surgery.

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Section: Discussionsupporting

confidence: 93%

Influence of phacoemulsification surgery on progression of idiopathic epiretinal membrane

Hayashi

2008

Eye

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“…One part of the evidence of lens factor is that cataract extraction lowers IOP by improving the angle configurations in ACG. [15][16][17][18][19] In our study, TCPD was slightly increased after LI or PT. CPI was decreased after both procedures.…”

Section: Discussionsupporting

confidence: 47%

Ultrasound Biomicroscopic Changes after Laser Iridotomy or Trabeculectomy in Angle-closure Glaucoma

Yoon

Won

Cho

et al. 2004

Korean J Ophthalmol

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This study was performed to demonstrate the ultrasound, biomicroscopic and dimensional changes of angle structure after laser iridotomy (LI) and primary trabeculectomy (PT) in primary angle-closure glaucoma (PACG). Angle-opening distance at a point 500(m from the scleral spur (AOD500), trabecular-iris angle (Θ 1 ), trabecular ciliary process distance (TCPD), ciliary process-iris angle (CPI), iris thickness (ID1, ID3), length of iris-lens contact distance (ILCD) and anterior chamber depth (ACD) were assessed before and after each procedure. Thirteen patients with LI and 16 with PT were prospectively enrolled. There were statistically significant increases in AOD500, Θ 1 , and ILCD in both groups. CPI was decreased in both groups. ACD, TCPD, and iris thickness were not changed significantly. The changes in angle configuration after LI or PT may result more from alterations in aqueous pressure gradients across the iris and the changes of configuration were greater in the iris roots without rotation of ciliary body. However, we didn't find any significant differences in the changes of parameters between the two procedures.

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“…The drop in IOP observed after 1 month following cataract surgery was in agreement with previous investigations in which IOP has been reported to decrease post-operatively in the mid-to long-term. [1][2][3][4] A post-operative reduction in systemic blood pressure also occurred, however, patients are generally anxious on the day of their operation and more relaxed postoperatively that may have accounted for the observed change. The reduction in IOP and parallel reduction in systemic blood pressure in the cataract group postoperatively meant that OPP remained stable between visits.…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…[1][2][3][4] This outcome, which has been attributed to a widening of the anterior chamber angle, [5][6][7][8] has positive implications for glaucomatous eyes resulting in a reduced requirement for IOP-lowering medication in at least one study. 4 Hopkins 9 carried out a pilot study investigating ocular haemodynamics in a small group of cataractous eyes and reported a 20-30% decrease in pulsatile ocular blood flow (POBF) compared to normal healthy volunteers. The effect of cataract surgery on ocular haemodynamics has also been considered: Spraul et al 10 described a post-operative decrease in POBF and pulse amplitude at 3 days that was not apparent 12 months later, whereas Rainer et al 11 reported no change in fundus pulse amplitude, or blood-flow velocities and resistance of the retrobulbar vessels up to 1 month following cataract surgery.…”

Section: Introductionmentioning

confidence: 99%

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Beneficial effects of small-incision cataract surgery in patients demonstrating reduced ocular blood flow characteristics

Hilton

Hosking

Gherghel

et al. 2004

Eye

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Purpose To investigate intraocular pressure (IOP) and ocular haemodynamics following small incision cataract surgery. Methods Systemic and ocular haemodynamics, and IOP, were measured pre-operatively and 1 month post-operatively, in 25 eyes of 25 patients (mean age 72.677.9 years) scheduled for small incision cataract surgery and intraocular lens implantation; these values were compared to an untreated age-matched healthy group (n ¼ 25, mean age 72.375

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Effect of cataract surgery on intraocular pressure control in glaucoma patients

Abstract: Cataract surgery substantially reduced IOP and the number of medications required for IOP control in glaucomatous eyes. Specifically, cataract extraction normalized the IOP in most eyes with ACG.

Cited by 284 publications

References 38 publications

Influence of phacoemulsification surgery on progression of idiopathic epiretinal membrane

Influence of phacoemulsification surgery on progression of idiopathic epiretinal membrane

Ultrasound Biomicroscopic Changes after Laser Iridotomy or Trabeculectomy in Angle-closure Glaucoma

Beneficial effects of small-incision cataract surgery in patients demonstrating reduced ocular blood flow characteristics

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