scholarly journals Intraocular Pressure Reduction after Femtolaser Assisted Cataract Surgery and Its Association with the Use of Ultrasound

Medicina ◽  
2021 ◽  
Vol 57 (5) ◽  
pp. 437
Author(s):  
Hana Abouzeid ◽  
Walter Ferrini ◽  
Murielle Bochud
Keyword(s):  
Intraocular Pressure ◽  
Linear Regression ◽  
Cataract Surgery ◽  
Anterior Chamber ◽  
Anterior Chamber Depth ◽  
Multiple Linear Regression Model ◽  
Study Data ◽  
Department Of Ophthalmology ◽  
Duration Of Surgery ◽  
Ocular Pressure

Background and Objectives: To quantify the change in intraocular pressure (IOP) after phacoemulsification in patients having undergone femtolaser assisted cataract surgery (FLACS), and study the influence of the use of ultrasound on this change. Setting: Jules-Gonin Eye Hospital, University Department of Ophthalmology, Lausanne, Switzerland. Materials and Methods: Interventional study. Methods: All consecutive cases operated with FLACS and with complete data for the studied parameters were selected for inclusion in the study. Data had been prospectively collected and was analysed retrospectively. Linear regression was performed to explore the association of change in IOP with time of measure, ultrasound use, sex, age, and duration of surgery. Results: There was a mean decrease in intraocular pressure of 2.5 mmHg (CI 95% −3.6; −1.4, p < 0.001) postoperatively. No association between the change in intraocular pressure and ultrasound time or effective phaco time was observed when the data were analyzed one at a time or in a multiple linear regression model. There was no association with sex, age, nuclear density, presence of pseudoexfoliation, duration of surgery, and time of ocular pressure measurement. Eyes with preoperative IOP ≥ 21 mmHg had a more significant IOP reduction after surgery (p < 0.0001) as did eyes with an anterior chamber depth <2.5 mm (p = 0.01). Conclusion: There was a decrease in intraocular pressure six months after FLACS in our study similar to that in the published literature for standard phacoemulsification. The use of ultrasound may not influence the size of the decrease, whereas the preoperative IOP and anterior chamber depth do. FLACS may be as valuable as standard phacoemulsification for cases where IOP reduction is needed postoperatively.

Early Post-Operative Effect of Phacoemulsification on Anterior Chamber Depth and Intraocular Pressure in Patients with Cataract

2021 ◽  
Vol 37 (2) ◽  
Author(s):  
Mashal Tayyab ◽  
Awaid Abid
Keyword(s):  
Intraocular Pressure ◽  
Anterior Chamber ◽  
Anterior Chamber Depth ◽  
Pressure Change ◽  
P Value ◽  
Iol Implantation ◽  
Intra Ocular Pressure ◽  
Significant Difference ◽  
Ocular Pressure ◽  
The Mean

Purpose:  To determine the Anterior Chamber depth and Intraocular pressure change following uncomplicated phacoemulsification. Study Design:  Quasi experimental study. Place and Duration of Study:  Layyton Rehmatullah Benevolent Trust Free Eye and Cancer Hospital, Lahore from 16/12/2017 to 15/06/2018. Methods:  One hundred and thirty nine patients who came to Layyton Rehmatullah Benevolent Trust Free Eye for phacoemulsification and IOL implantation were included in the study. Anterior Chamber depth was measured with IOL Master and intraocular pressure was determined using Goldmann Applanation Tonometer one day before and one month after surgery. Data was recorded on a self-designed proforma. Comparison between pre- and post-operative data with respect to change was analyzed by chi-square test. P-value ≤ 0.05 was considered significant. Results:  The mean intra-ocular pressure dropped from 14.36 ± 4.19 mmHg to 12.14 ± 4.26 mmHg 1 month after surgery with a mean drop of 2.21 ± 0.65 mmHg while the mean anterior chamber depth increased from 2.31 ± 0.08 mm to 3.59 ± 0.37 mm with a mean increase of 1.29 ± 0.36 mm. There was no statistically significant difference in the mean change of intra-ocular pressure and anterior chamber depth across various subgroups based on patient’s age, gender and duration of cataract. Conclusion:  Phacoemulsification and IOL implantation not only improves the visual acuity by removing the cataract but also deepens the anterior chamber and decreases intra-ocular pressure, which can have a beneficial effect in glaucoma patients. Key Words:  Phacoemulsification, Cataract, Intraocular pressure, Lens, Anterior chamber depth.

scholarly journals Assessment of anterior chamber angle changes after phacoemulsification with swept-source OCT

2021 ◽  
Vol 14 (10) ◽  
pp. 1527-1532
Author(s):  
Qian Zheng ◽  
◽  
Zhang-Liang Li ◽  
Ping-Jun Chang ◽  
Yun-E Zhao ◽  
...  
Keyword(s):  
Intraocular Pressure ◽  
Cataract Surgery ◽  
Anterior Chamber ◽  
Anterior Chamber Depth ◽  
Anterior Chamber Angle ◽  
Swept Source ◽  
Narrow Angle ◽  
Significant Difference ◽  
Shallow Anterior Chamber ◽  
Chamber Angle

AIM: To assess the changes of anterior chamber angle in patients with shallow anterior chamber after phacoemulsification combined with intraocular lens (IOL) implantation, based on anterior segment swept-source optical coherence tomography (AS-SS-OCT) measurements. METHODS: This was a prospective case control study; sixty eyes of sixty case were scheduled for cataract surgery with normal intraocular pressure (IOP). Based on anterior chamber depth (ACD) and gonioscopy findings, the eyes were divided into two groups: group of shallow anterior chamber and narrow angle (SAC group, 30 eyes); and group of normal anterior chamber group with wide angle (NAC group, 30 eyes). Measurements of ACD, anterior chamber volume (ACV), iris volume (IV), lens vault (LV), angle opening distance (AOD), angle recess area (ARA), trabecular iris space area (TISA), and trabecular iris angle (TIA) were conducted in each group before and 3mo after surgery. RESULTS: There was no significant difference in age, axial length (AL), corneal curvature, corneal diameter, intraocular pressure, and IV between two groups before surgery, except for the LV (P=0.000). ACD and ACV were prominently larger in the NAC group than the SAC group 3mo after operation (3.69±0.38 vs 3.85±0.39 mm, P=0.025; 161.37±19.47 vs 178.26±20.30 mm3, P=0.002). AOD750, ARA750 in nasal and inferior quadrants, TISA750 in all quadrants except temporal, and TIA750 in all quadrants in SAC group were significantly smaller than those in NAC group after operation (all P<0.05). CONCLUSION: Cataract surgery can deepen anterior chamber and increase the width of anterior chamber angle in Chinese subjects, but the angle related parameters including AOD750, ARA750, TISA750, TIA, TISA750, and ACV in patients with shallow anterior chamber and narrow angle do not reach the normal level.

scholarly journals Changes in Intraocular Pressure and Anterior Chamber Depth after Phacoemulsification in Non-Glaucomatous Patients

2019 ◽  
pp. 1-7
Author(s):  
Mona Abdallah ◽  
Omar M. Ali ◽  
Abd El-Nasser A. Mohammad ◽  
Wael Soliman
Keyword(s):  
Intraocular Pressure ◽  
Anterior Chamber ◽  
Open Angle Glaucoma ◽  
Anterior Chamber Depth ◽  
Cataract Extraction ◽  
University Hospital ◽  
Narrow Angle ◽  
Department Of Ophthalmology ◽  
Significant Difference ◽  
Applanation Tonometer

Aims: To evaluate changes in intraocular pressure (IOP) and anterior chamber depth (ACD) after uneventful phacoemulsification with intraocular lens (IOL) implantation. Study Design: Prospective interventional comparative study. Place and Duration of Study: Department of Ophthalmology, Assuit University Hospital, Assuit, Egypt between September 2016 and October 2017. Methodology: 100 Patients with visually significant cataract (39 males (39%) and 61 females (61%). All patients underwent uneventful phacoemulsification. Intraocular pressure and ACD were measured preoperatively by using Goldmann applanation tonometer and Ultrasonography  respectively, and at 1 week, 1 month, and 3 months postoperatively. Results: The postoperative ACD was higher than the preoperative value by 0.26± 0.06 mm at 1 week, 0.45±0.06 mm at 1 month, and 0.59±0.08 mm at 3 months postoperatively (P=.000). P < 0.05 was considered to indicate a statistically significant difference. The IOP at 1 week, 1 month, and 3 months postoperatively was lower than the preoperative value by 1.03±0.3 mmHg, 1.52±0.46 mmHg, and 2.14±0.62 mmHg, respectively (P=.001). Conclusion: This study revealed that there was a decrease in IOP and increase in ACD after cataract extraction by phacoemulsification. Patients with ocular hypertension, open-angle glaucoma, and narrow-angle glaucoma may benefit from cataract extraction.

scholarly journals Polypharmacy-associated potential contraindications of drug prescriptions in patients with primary angle closure disease in a real-world setting

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Fumiaki Tanaka ◽  
Naoki Shibatani ◽  
Kazumi Fujita ◽  
Hiroaki Ikesue ◽  
Satoru Yoshimizu ◽  
...  
Keyword(s):  
Intraocular Pressure ◽  
Anterior Chamber ◽  
Anterior Chamber Depth ◽  
Japanese Patients ◽  
Median Number ◽  
Angle Closure ◽  
Primary Angle Closure ◽  
Primary Angle Closure Glaucoma ◽  
Number Of Patients ◽  
Multiple Drugs

Abstract Background Primary angle closure disease (PACD) is a type of glaucoma in which the intraocular pressure (IOP) is increased because of the blockage of the anterior chamber angle. Medications contraindicated for patients with PACD, such as anticholinergics, cause mydriasis, and can elevate IOP. However, anticholinergics are currently contraindicated only for primary angle closure glaucoma (PACG) in Japanese package inserts. In this study, we investigated the prescription status of medications contraindicated for PACD, such as anticholinergics, in patients with PACD scheduled for eye surgeries. Methods Forty-three Japanese patients diagnosed with PACD at Kobe City Eye Hospital, Japan, and scheduled hospitalization for eye surgeries between December 2017 and July 2018, were included. Data, including sex, age, diagnosis, IOP, anterior chamber depth, and patients’ regular medications prior to hospitalization, were collected for each patient from the electronic medical records. Results The number of patients with chronic primary angle closure (CPAC) and acute primary angle closure (APAC) was 35 (81.4%) and 8 (18.6%), respectively. Among all the 43 patients with PACD, 8 (18.6%) received 15 medications that are potentially contraindicated for PACD by non-ophthalmologist. According to medication categories, benzodiazepine hypnotics were the most commonly prescribed. Among the 8 patients with APAC, 2 (25.0%) had routinely received medications contraindicated for PACD. The median number of all kinds of prescriptions on the day of hospitalization was significantly higher for patients who received medications contraindicated for PACD than for those who did not receive them (p = 0.010). Conclusions About 20% of patients with PACD received medications potentially contraindicated for PACD, such as anticholinergics. Attention should be paid to patients prescribed multiple drugs for adverse events, such as increase in intraocular pressure.

Relationship between intraocular pressure, anterior chamber depth and lens thickness in primary open-angle glaucoma patients

2017 ◽  
Vol 38 (2) ◽  
pp. 541-547 ◽  
Author(s):  
Bolajoko A. Adewara ◽  
Bernice O. Adegbehingbe ◽  
Oluwatoyin H. Onakpoya ◽  
Chidi G. Ihemedu
Keyword(s):  
Intraocular Pressure ◽  
Anterior Chamber ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Anterior Chamber Depth ◽  
Open Angle ◽  
Lens Thickness

scholarly journals Urrets-Zavalia Syndrome Following Cataract Surgery

2021 ◽  
pp. 659-663
Author(s):  
Shimon Kurtz ◽  
Maayan Fradkin
Keyword(s):  
Intraocular Pressure ◽  
Case Report ◽  
Cataract Surgery ◽  
Anterior Chamber ◽  
Inflammatory Reaction ◽  
Intraocular Lens Implantation ◽  
Postoperative Course ◽  
Lens Implantation ◽  
The Right

We describe a case of Urrets-Zavalia syndrome (UZS) in a healthy 56-year-old woman who underwent femtosecond-assisted phacoemulsification with intraocular lens implantation in both eyes. One month after an uneventful postoperative course in the left eye, the right eye was operated. Dilated pupil which was nonreactive to light appeared on day 21 postoperatively. This was discovered upon examination following anterior chamber inflammatory reaction which occurred 2 weeks following her surgery. Our case report emphasizes the importance and danger in developing UZS even if the reaction in the anterior chamber does not occur immediately after surgery. In addition, the importance of intraocular pressure follow-up in the period after UZS is acknowledged.

Factors affecting changes in the intraocular pressure after phacoemulsification surgery

2020 ◽  
Vol 1 (3) ◽  
pp. 166-172
Author(s):  
Rita Dhamankar ◽  
◽  
Suhas S Haldipurkar ◽  
Tanvi Haldipurkar ◽  
Vijay Shetty ◽  
...  
Keyword(s):  
Intraocular Pressure ◽  
Anterior Chamber ◽  
Axial Length ◽  
Anterior Chamber Depth ◽  
The Other ◽  
Factors Affecting ◽  
Factors Associated ◽  
Post Surgery ◽  
Unit Increase ◽  
The Mean

AIM: To assess the changes in anterior chamber parameters and examine the factors associated with changes in the intraocular pressure (IOP) in individuals who have undergone phacoemulsification surgery. METHODS: It is a longitudinal analysis of secondary clinical data collected from 105 non-glaucomatous eyes (82 patients) undergoing a cataract surgery. We studied the association between anterior chamber parameters, grade of cataract, demographics, and changes in the IOP over a period of three weeks. We also evaluated the association between the pressure-depth (PD) ratio and changes in the IOP during this time. RESULTS: The mean age (SD) of the 82 patients was 60.1±7.8y. The mean±standard deviation (SD) IOP was 15.06±3.36 mm Hg pre-operatively; it increased to 15.75±4.21 mm Hg on day one (P=0.20). In the multifactorial models, the mean IOP was -1.715 (95%CI: -2.795, -0.636) mm Hg on day 21±5 compared with the pre-operative values. The anterior chamber depth (ACD), axial length, age, sex, and grade of cataract were not significantly associated with changes in the IOP. Each unit increase in the PD ratio was associated with an increase in the mean IOP by 1.289 mm Hg (95%CI: 0.906, 1.671). After adjusting for pre-operative PD ratio, none of the other variables (ACD, axial length, temporal angle) were significantly associated with changes in mean IOP. CONCLUSION: The PD ratio was the single most important factor associated with the changes in post-operative IOP over three weeks post-surgery.

scholarly journals Intraocular Pressure Changes Following Different Keratoplasty Techniques and Association with Cornea Parameters and anterior Chamber Depth

2021 ◽  
Author(s):  
Gülşah Gümüş ◽  
cigdem altan ◽  
yusuf yildirim ◽  
nilay kandemir besek ◽  
selim genç ◽  
...  
Keyword(s):  
Intraocular Pressure ◽  
Anterior Chamber ◽  
Corneal Thickness ◽  
Anterior Chamber Depth ◽  
Early Postoperative Period ◽  
Lamellar Keratoplasty ◽  
Deep Anterior Lamellar Keratoplasty ◽  
Anterior Lamellar Keratoplasty ◽  
The Difference ◽  
Pressure Changes

Abstract Purpose To evaluate early intraocular pressure (IOP) changes following different keratoplasty techniques and to investigate the relationship between corneal thickness (CT), keratometry values, anterior chamber depth (ACD) and IOP changes. Methods We included patients who underwent penetrating keratoplasty (PK), deep anterior lamellar keratoplasty (DALK) and Descemet membrane endothelial keratoplasty (DMEK). ACD, CT, and keratometry measurements were repeated postoperatively at hour 24, week 1, and month 1. IOP measurements were repeated at postoperative hours 6 and 24, week 1, and month 1 by Tono-Pen XL. Results Twenty-two patients underwent PK, 12 patients underwent DALK, and 19 patients underwent DMEK. The difference between the IOP preoperatively and 6 hours postoperatively and between the IOP preoperatively and 24 hours postoperatively were statistically significant in the three types of surgery (p < 0.05 for each). The difference between preoperative and postoperative week 1 IOP was statistically significant only in the PK group (p = 0.023). When the IOP was compared between the three types of surgeries, the IOP at postoperative week 1 in the PK group was significantly higher than the DALK and DMEK groups (p = 0.021). There was no correlation between ACD, corneal thickness, K values, and IOP in any group. Conclusion IOP may increase in all types of keratoplasty during the first hours after surgery, but PK has a risk of high IOP longer in the early postoperative period. PK patients should be followed more carefully during postoperative week 1 to check for an increase in IOP.

scholarly journals Evaluation of Anterior Chamber Depth in 28,709 Adult Cataract Patients in China using Swept-Source Optical Biometry

2021 ◽  
Author(s):  
Qiong Lei ◽  
Haixia Tu ◽  
Xi Feng ◽  
Yong Wang
Keyword(s):  
Cataract Surgery ◽  
Anterior Chamber ◽  
Axial Length ◽  
Corneal Thickness ◽  
Anterior Chamber Depth ◽  
Multivariate Regression Analysis ◽  
Swept Source ◽  
Mean Values ◽  
The Mean ◽  
Cataract Patients

Abstract Background: To create an anterior chamber depth (ACD) regression model for adult cataract surgery candidates from China, and to evaluate the distribution of their ocular biometric parameters.Methods: The ocular biometric records of 28,709 right eyes of cataract surgery candidates who were treated at Aier Eye Hospitals in nine cities from 2018 to 2019 were retrospectively analyzed. All measurements were taken with IOLMaster 700. We included patients who were at least 40 years old and were diagnosed with cataract.Results: The mean age of the patients was 68.6 ± 11.0 years. The mean values recorded were as follows: axial length (AL), 24.17 ± 2.47 mm; mean keratometry (Km) value, 44.09 ± 3.25 D; corneal astigmatism (CA), 1.06 ± 0.98 D; ACD, 3.02 ± 0.45 mm; lens thickness (LT), 4.52 ± 0.45 mm; central corneal thickness (CCT), 0.534 ± 0.04 mm; and white to white (WTW) corneal diameter, 11.64 ± 0.46 mm. The proportion of patients with long axial length (AL >25 mm) decreased with age. ACD, LT, AL, Km, WTW, and age were correlated. In the multivariate regression analysis of ACD, which included LT, AL, WTW, sex, Km, CCT, and age, there was a reasonable prediction with adjusted R2 = 0.629.Conclusions: The results show that high myopes are inclined to schedule cataract surgery at a younger age. LT and AL were found to be important factors that affect ACD. This study provides reference data for cataract patients from China.

scholarly journals Safety and Efficacy of 25G vitrectomy surgery for malignant glaucoma in pseudophakia

2019 ◽  
Author(s):  
fei you
Keyword(s):  
Visual Acuity ◽  
Intraocular Pressure ◽  
Cataract Surgery ◽  
Anterior Chamber ◽  
Safety And Efficacy ◽  
Corrected Visual Acuity ◽  
Malignant Glaucoma ◽  
Intraocular Hemorrhage ◽  
Significant Difference ◽  
Best Corrected Visual Acuity

Abstract Background: malignant glaucoma after cataract surgery is still one of the serious complications, if not handled properly，it may lead to serious consequences. It is notoriously difficult to treat. 25G vitrectomy was performed to evaluate the safety and efficacy for the treatment of malignant glaucoma in pseudophakia. Methods: This is a retrospective, comparative case series study. A total of 20 eyes of 20 patients with malignant glaucoma after phacoemulsification were analyzed retrospectively in The First Affiliated Hospital Of Anhui Medical University from May 2015 to January 2018. All Medical Data including the best corrected visual acuity (BCVA), Change of intraocular pressure (IOP), the length of eye axis, and the depth of anterior chamber were recorded. SPSS 17.0 statistical software was used for analysis .Before surgery, the best corrected visual acuity (BCVA) was 1.8±0.6. The intraocular pressure was between 18-57mmHg, with an average of 35.2±10.4mmHg.The depth of anterior chamber was between 0.9-1.9mm, with an average of 1.3±0.2mm.The length of eye axis was 19.7-22.5mm,with an average of 20.6±0.5mm.All the patients were accomplished with 25G vitrectomy. Besides, anterior chamber inflammatory reaction and other complications were also observed postoperation. Results: The patients were followed up for 6-12 months with an average of 9 months. BCVA at the last follow up improved to 0.8±0.1, and there was significant difference compared to that before operation (P<0.01).IOP was from 12-19mmHg, an average of 16.1±2.5mmHg, there was significant difference compared to that before operation (t=7.6, p<0.01).Only one patient occurred low IOP (6mmHg) after surgery, IOP returned to normal level (14mmHg) after conservative treatment. No serious complications including corneal endothelium decompensation, intraocular lens (IOL) capture, intraocular hemorrhage, endophthalmitis and uncontrolled IOP were observed. Conclusions: 25G minimally invasive vitrectomy can treat malignant glaucoma after cataract surgery safely and effectively

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