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 Non-contact Tonometry Versus Pachymetry Corrected Intraocular Pressure: Any Difference? A Case for Pachymetry during Glaucoma Screening

2019 ◽  
pp. 1-7
Author(s):  
E. Awoyesuku ◽  
A. A. Onua
Keyword(s):  
Intraocular Pressure ◽  
Pressure Measurement ◽  
Corneal Thickness ◽  
Intra Ocular Pressure ◽  
Glaucoma Screening ◽  
Port Harcourt ◽  
Department Of Ophthalmology ◽  
Significant Difference ◽  
Ocular Pressure ◽  
The Mean

Objective: This study sets out to determine if there is any statistical difference in the results of measuring intraocular pressure (IOP) uncorrected for Central Corneal Thickness with Air Puff Tonometry and corrected with pachymetry for clients undergoing screening for glaucoma at the department of Ophthalmology, University of Port Harcourt Teaching Hospital (UPTH), Nigeria. Methods: One hundred and thirty-two (132) adults were screened for glaucoma during the 2019 World Glaucoma week in UPTH Port Harcourt, they had their IOPs measured with Air Puff (Non-contact) Tonometer (Pulsair intelliPuff Tonometer, Keeler), after which they underwent pachymetry (Sonomed Escalon PacScan Plus) to determine corneal thickness after which the corrected IOP was determined by using a correction factor for adjusting IOP based on corneal thickness [1].  The results were analyzed using SPSS version 20 to determine statistical differences. Results: There was a statistically significant difference between intraocular pressure (IOP) measurements when corrected with pachymetry than when it is uncorrected. In our study the mean uncorrected IOP RE and LE was 14.53 mmHg and14.75 mmHg respectively while Corrected IOP RE and LE was 16.37 mmHg and 16.72 mmHg respectively. Conclusion: Intra ocular pressure measurement adjusted with pachymetry for corneal thickness may be a better option for tonometry and we propose this be considered during intra ocular pressure measurement.

scholarly journals INTRA OCULAR PRESSURE

2018 ◽  
Vol 25 (12) ◽  
pp. 1833-1839
Author(s):  
Arsalan Ahmed Rajput ◽  
Azfar Ahmed Mirza ◽  
Ghazi Khan Maree ◽  
Adil Ali Shaikh
Keyword(s):  
Intraocular Pressure ◽  
Central Corneal Thickness ◽  
Corneal Thickness ◽  
P Value ◽  
Strong Positive Correlation ◽  
Positive Correlation ◽  
Intra Ocular Pressure ◽  
Department Of Ophthalmology ◽  
Ocular Pressure ◽  
The Mean

Introduction: The ideal optical properties of the eye requires support of state of the eye-ball which is normally regulated by the intraocular pressure (IOP). There is variation in the measurements of IOP with Goldmann applanation tonometry if the thickness of the central cornea is not uniform, the IOP is high when cornea is thicker and vice versa. Therefore, the central corneal thickness (CCT) is thought to affect the IOP readings, however, as shown, the evidence available remains controversial. The aim of the study was to determine correlation between CCT and IOP. Objectives: To determine the correlation between the Central Corneal Thickness (CCT) and Intra Ocular Pressure (IOP). Study Design: A cross-sectional study. Placeand Duration: Department of Ophthalmology, Aga Khan University Hospital, Karachi from July to December, 2014. Methodology: During the study period of six months total 431 participants were purposively sampled according to the set criteria. Variables included were age, gender, CCT, and IOP. Correlation between IOP and CCT was assessed by using Pearson correlation test, P value of < 0.05 was considered significant. Results: Out of 431 participants, 239 (55.5%) males and 192 (44.5%) females. The mean age was 34.9 ranging from 20 to 50 years. The mean central corneal thickness of right eye was 529 μm with SD ± 39.5 and range of 473-591 μm. The mean intraocular pressure of right eye was 14.7 μm, SD ± 3.1 with a range of 9-21 mmHg. The left eye mean central corneal thickness was 533, SD ± 29.6 with range of 481-589 μm. The mean intraocular pressure of left eye was 15.6, SD ± 3.1 with a range of 10-21 mmHg. Strong positive correlation was found (P-value < 0.001) between central corneal thickness andintra ocular pressure for both eyes. Conclusion: There is positive correlation between CCT and IOP. Therefore, along with the routine ophthalmic examination for intraocular pressure measurements pachymetry should also be considered for accurate interpretation of the results.

scholarly journals Mean Change in Intra-Ocular Pressure in patients undergoing Trabeculectomy with Mitomycin C

2021 ◽  
Vol 15 (5) ◽  
pp. 1044-1046
Author(s):  
Munib Ur Rehman ◽  
Shahid Mahmood Dayal ◽  
Ali Zain Ul Abidin
Keyword(s):  
Intraocular Pressure ◽  
Mitomycin C ◽  
Congenital Glaucoma ◽  
P Value ◽  
Cross Sectional ◽  
Primary Congenital Glaucoma ◽  
Intra Ocular Pressure ◽  
Department Of Ophthalmology ◽  
Significant Difference ◽  
Ocular Pressure

Aim: To examine the outcomes of trabeculectomy followed by mitomycin C in term of mean change in intra-ocular pressure in patients presented with primary congenital glaucoma. Study design: Cross-sectional/observational Place and duration of study: Department of Ophthalmology, Khawaja Muhammad Safdar Medical College, Allama Iqbal Memorial Teaching Hospital, Sialkot from 7th July 2020 to 6thJanuary 2021. Methods: Fortypatients of both genders with ages up to 5 years presented with primary congenital glaucoma were enrolled in this study. Patients demographics were recorded after taking written consent from parents/guardians. All the patients were receivedtrabeculectomy with 0.4mg/ml Mitomycin C was applied below the flap for 2 to 3 minutes. Intraocular pressure was examined preoperatively and at 12th day after surgery. Results:Twenty-four (60%) were males while 16 (40%) were females. 30 (75%) patients were ages <2yearsand 10 (25%) patients had ages >2 years. A significant difference was observed regarding mean change in intra-ocular pressure (pre-operatively 30.48±3.62 versus post-operatively 16.35±2.86) with p-value <0.001. Conclusion: Trabeculectomy with Mitomycin C is very effective for reducing intraocular pressure. A significant decrease in intra-ocular pressure was observed post-operatively. Keywords: Primary congenital glaucoma, Intra-ocular pressure, Trabeculectomy, Mitomycin C

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.

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 Glaucoma characteristics evaluation in myopia – A clinical study

2021 ◽  
Vol 7 (2) ◽  
pp. 195-199
Author(s):  
Helen Rosita J ◽  
Gnanaselvan J ◽  
Amudhavadivu S ◽  
Anna Kurian Mullasseril
Keyword(s):  
Optic Nerve ◽  
Optic Nerve Head ◽  
High Myopia ◽  
Intra Ocular Pressure ◽  
Significant Difference ◽  
Long Term Follow Up ◽  
Ocular Pressure ◽  
The Mean ◽  
One Year ◽  
High Degree

Glaucoma is the leading cause of irreversible blindness, one of the risk factor recognised being high myopia. Intra ocular pressure may be normal in myopic patients, with optic nerve head glaucoma characteristics. Eye ball elongation and optic nerve head tilting may be present in patients with high myopia that will represent field defects mimicking glaucoma. Treating patients with myopia having suspected aspects of glaucoma may be a challenge but even more challenging is the diagnosis of glaucoma in myopic patients.: To evaluate the association of glaucoma features with myopia. To create the awareness regarding the long term follow up.: Patients in the age group of 15 to 45 years who had attended our institution over a period of one year who fulfilled the inclusion and exclusion criteria were subjected for this study. Fifty four patients who were diagnosed to have moderate or high degree myopia were selected for this analytical study. They were subjected to vision, ocular examination, tonometry and results obtained were analysed.: In our study moderate myopes constituted 55.5% and high myopes were 44.5%. The mean Intra ocular pressure and the mean corrected Intra ocular pressure in high myopes were observed to be higher than in moderate myopia. It was observed that higher prevalence of glaucoma was observed in high myopes.: There is a clinically as well as statistically significant difference between mean Intra ocular pressure and mean corrected Intra ocular pressure. So mean corrected Intra ocular pressure should be measured .From our study, there is a clear indication that there is increased prevalence of glaucoma in high myopes.

scholarly journals Anatomical and Visual Effects of Implantable Phakic Contact Lens on Correction of Myopia

2022 ◽  
Author(s):  
Mahmoud Ekram ◽  
Ahmed Mohamed Kamal Elshafei ◽  
Asmaa Anwar Mohamed ◽  
Mohamed Farouk Sayed Othman Abdelkader
Keyword(s):  
Visual Acuity ◽  
Anterior Chamber ◽  
Contact Lens ◽  
Anterior Segment ◽  
Anterior Chamber Depth ◽  
Case Series ◽  
Care Group ◽  
Case Series Study ◽  
Significant Difference ◽  
The Mean

Abstract Purpose: To evaluate the anatomical effects of implantable phakic contact lens (IPCL) (Care Group, India) on anterior segment and its visual outcomes .Patients and methods: In a prospective interventional case series study, 60 highly myopic eyes of 32 patients were subjected to IPCL implantation in the Ophthalmology Department of Minia University Hospital, Egypt from January 2019 to June 2021. All patients had complete ophthalmic examination and were followed up for 1 year. Pentacam was used for preoperative and postoperative estimation of anterior chamber depth (ACD), anterior chamber angle (ACA), anterior chamber volume (ACV) and IPCL vault in the 1st, 3rd, and 12th months. Assessment of corneal endothelium was done using specular microscope preoperatively and after 12 months. Preoperative and postoperative refraction and visual acuity were measured. Results: There was a statistically significant decrease in ACD, ACA, and ACV. There was no significant difference between preoperative and postoperative mean intraocular pressure (IOP) by the 12th month (P=0.163). The mean preoperative endothelial cell count (ECD) was significantly reduced from 2929.3±248 cells/mm2 to 2737.9±303 cells/mm2 at the 12th month (P<0.001). with a statistically highly significant improvement of mean Log Mar uncorrected visual acuity (UCVA) from 1.48±0.19 preoperatively to 0.46±0.11 by the end of follow up (P<0.001) with insignificant difference between preoperative best corrected visual acuity (BCVA) and postoperative UCVA (P=0.209). In the 12th month, the mean vault was 240±540 μm. No sight threatening complications occurred.Conclusion: Although IPCL induced anatomical changes, it was safe and effective for correction of high myopia.

scholarly journals Clinical Analysis of Ocular Parameters Contributing to Intraoperative Pain during Standard Phacoemulsification

2017 ◽  
Vol 2017 ◽  
pp. 1-5 ◽  
Author(s):  
Yong Koo Kang ◽  
Myung Jun Kim ◽  
Hong Kyun Kim ◽  
Bo Young Chun
Keyword(s):  
Intraocular Pressure ◽  
Anterior Chamber ◽  
Axial Length ◽  
Medical Records ◽  
Demographic Data ◽  
Anterior Chamber Depth ◽  
Clinical Analysis ◽  
Subjective Pain ◽  
Intraoperative Pain ◽  
The Mean

Purpose. To study the correlation between ocular parameters and subjective pain that patients perceived during phacoemulsification.Methods. Medical records of 142 patients who underwent standard phacoemulsification under topical anesthesia between March and August 2016 were retrospectively reviewed. The pain during phacoemulsification and 1 h after surgery was assessed and compared using a visual analog scale. In addition, demographic data, preoperative biometric parameters, and intraoperative surgical parameters were recorded.Results. Mean age of patients was 67.49 ± 12.50 years. The mean pain score was 2.26 ± 0.85 during phacoemulsification and 0.40 ± 0.69 postoperatively. Intraoperative pain was significantly associated with higher preoperative intraocular pressure (β = 0.220,P=0.016), greater anterior chamber depth (β = 0.210,P=0.028), and greater axial length (β = 0.181,P=0.043).Conclusions. To reduce the subjective pain when patients have high preoperative intraocular pressure, large anterior chamber depth, or great axial length, supplementary procedures may be required.

scholarly journals Ocular biometry and power of intra ocular lens among cataract patients in rural Eastern Ethiopia

2020 ◽  
Author(s):  
MANDEFRO SINTAYEHU KASSA ◽  
GIRUM W GESSESSE
Keyword(s):  
Anterior Chamber ◽  
Axial Length ◽  
Anterior Chamber Depth ◽  
Multiple Linear Regression Model ◽  
P Value ◽  
Corneal Curvature ◽  
Ocular Lens ◽  
Eastern Ethiopia ◽  
Ocular Biometry ◽  
The Mean

Abstract Background : The main objective of the study was to report on the main parameters of ocular biometry and Intra ocular lens power of patients attending a cataract surgical program in Eastern Ethiopia. Methods : The study was a cross sectional study on 765 eyes which were legible for cataract surgery during a mass eye camp conducted from April 04 to April 10, 2018 at Bisidimo Hospital,Eastern Ethiopia.Ocular biometric parameters such as axial length (AL), anterior chamber depth (ACD), mean corneal curvature (MCC) were measured using automated keratorefractometer(Retinomax) and Sonomed A - Scan. Analysis of variance and multivariate analysis were done to determine association of ocular biometry components with socio demography of the study subjects. Results : A total of 765 eyes were enrolled in this study. The mean corneal curvature and the mean anterior chamber depth were found to be 7.61 mm and 2.88mm respectively. The mean axial length was estimated to be 22.98 mm. The mean refractive power of Intra ocular lenses was calculated to be 19.34D. The mean axial length in females was shorter than that of males by 0.24 and this was statistically significant ( P - value = 0.01). Under multiple linear regression model gender had a statistically significant impact on the axial length. The mean Anterior chamber depth in males was also larger than that of females by nearly 0.1 and this was statistically significant (P - value = 0.001). Under multiple linear regression model both age and gender had a statistically significant impact on the anterior chamber depth. There was no a statistically significant difference on the mean Intra ocular lens power required for male and female patients.Conclusion : This study is the first of its kind to provide a larger population based normative data on the most important parameters of ocular biometry in Ethiopia.The female sex was a strong predictor of small axial length and shallow anterior chamber. Increasing age had no effect on the axial length but was found to be a stronger predictor of shallow anterior chamber. Key words : Axial length, Anterior chamber depth, Corneal curvature, Intra ocular lens.

scholarly journals Evaluation of Ocular Anterior Chamber Depth and Body Mass Index in Normal Blacks in a Nigerian City

2019 ◽  
pp. 1-8
Author(s):  
I. N. Aprioku ◽  
C. S. Ejimadu
Keyword(s):  
Body Mass Index ◽  
Anterior Chamber ◽  
Body Mass ◽  
Normal Population ◽  
Anterior Chamber Depth ◽  
Angle Closure ◽  
P Value ◽  
Multi Stage ◽  
Significant Difference ◽  
Lens Power

Aim: To evaluate ocular anterior chamber depth (ACD) and body mass index (BMI) in a normal population in Port Harcourt City Local Government Area (LGA), with a view to determine formulae in estimating intraocular lens power for cataract surgeries and possible association with angle closure glaucoma and other ocular pathological conditions.            Methods: This is a multi-stage study with inclusion criteria of Visual Acuity > 6/18, age greater than 18 years with no history of past ocular surgeries or trauma. Data obtained through a structured proforma included age, sex, tribe, occupation and level of education. Body Mass Index (BMI) was measured using a standard height and weight automated scale (SECA 769,220). Comprehensive ocular examination done and Anterior Chamber Depth (ACD) measured using Amplitude (A) scan ultrasonography (SONOMED PACSCAN 300AP). Data was analyzed using SPSS (Version 17), and p value was set at ≤ 0.05. Results: Four hundred and sixty six (466) subjects participated in the study made up of two hundred and twelve (212) males (45.5%) and two hundred and fifty four (254) females (54.5%) with M: F ratio of 1:1.2. The age range was 18-92 years and mean age of the subjects studied 43.0±14.2 years. Findings revealed mean ACD and Body Mass Index to be 3.1±0.5 mm and 26.9±6.2 kg/m2 respectively. The mean ACD was greater in males than females. There was a statistically significant relationship between age and ACD. Obesity was found to be higher in females (n=97; 78.2%) compared to the males among those with BMI >30Kg/m2 and this was found to be statistically significant (p=0.0001). A larger proportion of subjects with normal BMI and overweight BMI 25-29.5 Kg/m2 were males. There was a statistically significant difference in the ACD values between genders among those overweight (BMI 25- 29.5 Kg/m2) and the obese (BMI >30 Kg/m2). Conclusion: There was a statistically significant difference in the ACD values between genders among those overweight.

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