Augeninnendruck und Hornhautdicke

Domke, N; Hager, A; Wiegand, Wolfgang

doi:10.1007/s00347-006-1364-1

Cited by 20 publications

(3 citation statements)

References 22 publications

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“…In this study, the CCT improved close to baseline at 6 months, but the re-maining small increase in thickness may be due to differences in surgical methods using superior cornea incision, relatively higher age than previous studies, differences in underlying diseases, and whether or not vitrectomy was used. Since IOP measurement is affected by CCT, IOP may be measured higher as corneal edema increases [20,33]. The increase of CCT at 1 month was approximately 20 μm, which may lead to underestimation of the IOP reduction.…”

Section: Discussionmentioning

confidence: 99%

Changes in Intraocular Pressure and Anterior Chamber Parameters Following Cataract Surgery, Vitrectomy, and Combined Surgery

Kim,

Park,

Lee

2024

Korean J Ophthalmol

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Purpose: The aim of this study is to investigate changes in intraocular pressure (IOP) and anterior-segment parameters before and after cataract surgery, vitrectomy, and combined surgery.Methods: The records of patients who had undergone cataract surgery (cataract group), vitrectomy (vitrectomy group), or combined cataract surgery and vitrectomy (combined group) at our hospital were retrospectively examined. The vitrectomy group consisted of pseudophakic eyes. IOP and anterior-segment measurements, including anterior chamber depth (ACD), angle opening distance (AOD), trabecular-iris angle (TIA), and trabecular-iris space area (TISA), were measured using swept-source anterior-segment optical coherence tomography before and 6 months after surgery in 41, 15, and 40 eyes, respectively.Results: In the cataract and combined groups, there was a decrease in IOP (cataract group: from 15.8 to 13.4 mmHg, p <0.001; combined group: from 15.8 to 14.2 mmHg, p = 0.002) and an increase in the central corneal thickness after surgery (p <0.001). The ACD increased in all groups, with a smaller increase in the vitrectomy group (p <0.03). Postoperative AOD, TIA, and TISA were significantly increased in the cataract and combined groups (p <0.02). Higher preoperative IOP and larger IOP reduction after surgery were correlated with smaller preoperative AOD, TISA, and TIA in cataract and combined groups (p <0.034). A small preoperative ACD was related to smaller preoperative AOD, TISA, TIA (r > 0.649, p <0.001), and postoperative IOP reduction in the cataract and combined groups (r = 0.377, p = 0.018 and r = 0.559, p = 0.001, respectively).Conclusions: Compared to the vitrectomy group, the cataract and combined groups showed reduced postoperative IOP and increased AOD, TISA, and TIA. In these two groups, patients with shallower preoperative ACDs showed greater changes in IOP after surgery. Changes in IOP after surgery are thought to be related to changes in the anterior segment caused by the removal of the crystalline lens.

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Section: Discussionmentioning

confidence: 99%

Changes in Intraocular Pressure and Anterior Chamber Parameters Following Cataract Surgery, Vitrectomy, and Combined Surgery

Kim,

Park,

Lee

2024

Korean J Ophthalmol

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“…IOP measurement may depend on CCT,23 and the CCT of diabetic patients has been reported to be greater when compared with that of nondiabetic patients 24,25. Even with use of the noncontact tonometer, the IOP measurement is still affected by CCT 26. Thus, we may be concerned about the influence of a thick CCT on IOP measurement in diabetic patients.…”

Section: Discussionmentioning

confidence: 99%

Intraocular pressure in Japanese diabetic patients

Matsuoka¹,

Ogata²,

Matsuyama³

et al. 2012

OPTH

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BackgroundTo determine whether the intraocular pressure (IOP) in diabetic patients is significantly different from that in nondiabetic patients.MethodsThe medical records of all patients who were initially examined in the Department of Ophthalmology, Kansai Medical University, Takii Hospital were reviewed. At the initial examination, patients had a detailed interview and underwent a comprehensive ophthalmic examinations. All patients were over 20 years of age and did not have glaucoma.ResultsA total of 703 patients were evaluated. The mean (±standard error) IOP of the diabetic patients was 15.5 ± 0.2 mmHg (n = 206), and was significantly higher than the 14.0 ± 0.1 mmHg (n = 497) in the nondiabetic patients (P < 0.0001). The IOP was negatively correlated with age (r = −0.202; P = 0.024) in the diabetic patients and was weakly but significantly correlated with the glycosylated hemoglobin (HbA1c) level (r = 0.240; P = 0.015) in the group with diabetic retinopathy.ConclusionThe significantly higher IOP in diabetic patients and positive correlation of IOP with HbA1c levels in patients with diabetic retinopathy indicate that IOP in diabetic patients is higher, especially in those with poor control of diabetes.

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“…However other studies have found that the NCT systematically overestimates by 0.12-0.58 mmHg, compared to GAT [ 15 , 16 , 18 ]. In addition, CCT may influence the NCT to a greater extent than it does GAT [ 19 ]. Patients also may squeeze their eyelids while awaiting the air puff, thereby interfering with accurate measurement using the NCT.…”

Section: Goldmann Applanation Tonometermentioning

confidence: 99%

Detecting IOP Fluctuations in Glaucoma Patients

Nuyen

Mansouri²

2016

TOOPHTJ

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Lowering intraocular pressure (IOP) remains the guiding principle of glaucoma management. Although IOP is the only treatable risk factor, its 24-hour behavior is poorly understood. Current glaucoma management usually relies on single IOP measurements during clinic hours, even though IOP is a dynamic parameter with rhythms dependent on individual patients. It has further been shown that most glaucoma patients have their highest IOP measurements outside clinic hours. The fact that these IOP peaks go largely undetected may explain why certain patients progress in their disease despite treatment. Nevertheless, single IOP measurements have determined all major clinical guidelines regarding glaucoma treatment. Other potentially informative parameters, such as fluctuations in IOP and peak IOP, have been neglected, and effects of IOP-lowering interventions on such measures are largely unknown. Continuous 24-hour IOP monitoring has been an interest for more than 50 years, but only recent technological advances have provided clinicians with a device for such an endeavor. This review discusses current uses and shortcomings of current measurement techniques, and provides an overview on current and future methods for 24-hour IOP assessment. It may be possible to incorporate continuous IOP monitoring into clinical practice, potentially to reduce glaucoma-related vision loss.

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Augeninnendruck und Hornhautdicke

Cited by 20 publications

References 22 publications

Changes in Intraocular Pressure and Anterior Chamber Parameters Following Cataract Surgery, Vitrectomy, and Combined Surgery

Changes in Intraocular Pressure and Anterior Chamber Parameters Following Cataract Surgery, Vitrectomy, and Combined Surgery

Intraocular pressure in Japanese diabetic patients

Detecting IOP Fluctuations in Glaucoma Patients

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