Impact of Phacoemulsification Parameters on Central Retinal Thickness Change Following Cataract Surgery

Mackenbrock, Lars H. B.; Baur, Isabella D.; Łabuz, Grzegorz; Auffarth, Gerd U.; Khoramnia, Ramin

doi:10.3390/diagnostics13172856

Cited by 3 publications

(1 citation statement)

References 21 publications

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“…Reducing the CDE correlated with a significant lower retinal volume change between the preoperative measures and those 3 months after surgery. 8 The Centurion phacoemulsifier applies pressure directly to the irrigation bag, while older systems use a gravity-based fluidic system that is more prone to fluctuations in intraocular pressure. 9 Even before the AS handpieces became available, this allowed to increase the vacuum used during phacoemulsification.…”

Section: Discussionmentioning

confidence: 99%

Impact of a handpiece with a built-in fluidics pressure sensor on phacoemulsification: a multicentre prospective comparative study

Brézin,

Monnet,

Lignereux

et al. 2023

BMJ Open Ophth

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ObjectiveWe assessed whether the immediate pressure adjustments provided by a phacoemulsification handpiece with a built-in pressure sensor (Active Sentry, AS) could decrease the amount of energy delivered in the eye during cataract surgery.Methods and analysisThe Study of Active Sentry in Cataract Surgery was a multicentre prospective clinical trial. The Centurion system (Alcon Labs) was used and we compared phacoemulsifications performed with the AS handpiece with procedures using a sensor placed in the phacoemulsifier (non-AS). The primary outcome measure was the cumulative dissipated energy (CDE) used during the procedures. The secondary outcome measures were the total, longitudinal and torsional ultrasound (US) times, the duration of the surgery and the amount of fluid used during the surgeries.ResultsThe study analysed 1432 (800 AS and 632 non-AS) procedures. The mean patient age was 72.4±10.0 years. The median CDE was respectively 6.3 (IQR 3.5–9.9) and 6.7 (IQR 4.5–11.5) with and without AS (p=0.0001). The median US time was, respectively, 48.0 s (IQR 34.0–68.0) and 55.0 s (IQR 38.0–80.0) with and without AS (p<0.0001). Torsional and longitudinal US times were reduced with AS. The median duration of the procedure was, respectively, 9.0 min (IQR 7.0–12.0) and 10.0 min (IQR 7.0–13.0) (p=0.0002) with and without AS. The median balanced salt solution volume used was 52.0 cm3(IQR 41.0–72.0) and 57.0 cm3(IQR 42.0–81.0) with and without AS (p=0.0018).ConclusionThe phacoemulsifications performed with a pressure sensor built in the handpiece delivered less energy in the eye and were shorter.Trial registration numberNCT04732351.

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Section: Discussionmentioning

confidence: 99%

Impact of a handpiece with a built-in fluidics pressure sensor on phacoemulsification: a multicentre prospective comparative study

Brézin,

Monnet,

Lignereux

et al. 2023

BMJ Open Ophth

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Impact of Delayed Sequential Bilateral Cataract Surgery on Diabetic Macular Edema: A Real‐World Study in Northwestern China

Ren,

Yan

2024

Journal of Ophthalmology

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Objectives. To assess the incidence and characteristics of treatment‐requiring diabetic macular edema (TR‐DME) in eyes after delayed sequential bilateral cataract surgery in patients with diabetes mellitus. Methods. This was a retrospective study involving patients with diabetes who underwent cataract surgery at Shaanxi Eye Hospital between January 2019 and December 2021. The incidence and characteristics of a first episode of TR‐DME after delayed sequential bilateral cataract surgery were observed. Results. A total of 1553 individuals (3106 eyes) were included in the study. All patients underwent bilateral cataract surgery with the prescribed interval of surgery within one month. The incidence of TR‐DME was 0.52% in the year before surgery versus 1.87% in the year after surgery (p < 0.05). The highest risk period was between 2 and 4 months after surgery. A first episode of TR‐DME was observed in 58 eyes of 35 patients after delayed sequential bilateral cataract surgery. The patients were divided into four groups according to the interval between bilateral cataract surgeries. A higher incidence of TR‐DME was observed when the interval between the surgeries was less than two weeks. Conclusions. This is the first real‐world study of the effects of cataract surgery on the development of TR‐DME. The study was performed at the largest ophthalmic center in Northwestern China. The findings demonstrate that the incidence of TR‐DME increased significantly after cataract surgery, with the highest incidence between two and four months after surgery. Patients with shorter intervals between bilateral cataract surgeries were at a high risk.

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Clinical study on the influence of phacoemulsification on retinal structure of senile cataract based on data mining

Zheng,

Wang,

Zhu

2024

THC

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BACKGROUND: With the improvement of the level of science and technology, diagnosis and treatment technology of ophthalmology has continuously improved, especially with the rise of optical coherence tomography. Alternative methods have enabled clinicians to obtain more information and make greater breakthroughs in the occurrence and development of many ophthalmic diseases. OBJECTIVE: To investigate changes in retinal structure in the macular area of senile diabetic cataract patients undergoing cataract phacoemulsification. METHODS: This was a prospective cohort study. A total of 68 cataract patients (78 eyes) who voluntarily received phacoemulsification combined with intraocular lens implantation in the Department of Ophthalmology of our hospital from December 2018 to December 2021 were selected. They were divided into A (diabetic) and B (non-diabetic) according to whether they were complicated with diabetes. There were 24 cases (28 eyes) in A and 44 cases (50 eyes) in B. Cataract patients were collected before and after surgery. Day, 1 week, and 1 month, data on the average thickness of the fovea retina and thickness of the retinal nerve fiber layer around the optic disc (average thickness, nasal thickness, topic side thickness, upper thickness, and lower thickness) were statistically analyzed analyze. RESULTS: The average retinal thickness of the macular fovea in Group A was found to be greater than that of Group B, however, there was no statistically significant difference between the two groups. At week one and week thirty, Group A’s layer of retinal nerve fibers surrounding the optic disc thickened; there was no discernible difference between the two groups. One week and one month following surgery, however, showed a one-week difference in upper thickness compared to preoperative days. There was no discernible change between the preoperative and 1-day times. CONCLUSION: Both diabetic cataract patients and simple age-related cataract patients will have different degrees of increased foveal retinal thickness after surgery. However, the foveal retinal thickness of patients with diabetes increases more.

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Impact of Phacoemulsification Parameters on Central Retinal Thickness Change Following Cataract Surgery

Cited by 3 publications

References 21 publications

Impact of a handpiece with a built-in fluidics pressure sensor on phacoemulsification: a multicentre prospective comparative study

Impact of a handpiece with a built-in fluidics pressure sensor on phacoemulsification: a multicentre prospective comparative study

Impact of Delayed Sequential Bilateral Cataract Surgery on Diabetic Macular Edema: A Real‐World Study in Northwestern China

Clinical study on the influence of phacoemulsification on retinal structure of senile cataract based on data mining

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