Impact of Pseudoexfoliative Syndrome on Effective Lens Position, Anterior Chamber Depth Changes, and Visual Outcome After Cataract Surgery

Background: Pseudoexfoliation syndrome is an important ocular manifestation of a systemic disease, found to be common in cataract patients as well as in 50% of glaucoma patients. Present study was intended to assess the profile of Pseudoexfoliation syndrome and evaluate the surgical outcome of Manual Small Incision Cataract Surgery in Pseudoexfoliative eyes. Material and Methods: Present study was prospective, observational, hospital-based study, conducted in patients with age more than 50 years, with Pseudoexfoliation, admitted for cataract surgery, posted for Manual Small incision cataract surgery(MSICS). All patients underwent a manual small incision cataract surgery, and visual outcomes of the procedures were recorded on the first postoperative day. Results: In present study, maximum numbers of patients were from the age group of 70-79 years (62.5%) and 56 (70%) patients were males and 24 (30%) were females. In this study of 80 patients with Pseudoexfoliation Syndrome, 60 patients had Bilateral Pseudoexfoliation i.e. 120 eyes (85.71%) while 20 patients had Unilateral Pseudoexfoliation i.e. 20 eyes (14.29%). In majority of the eyes 111 (79.29%) had involvement of lens with Pseudoexfoliation while 109 (77.86%) had pupillary involvement. Mean Anterior Chamber Depth in Pseudoexfoliative eyes was 2.50±0.22 mm. Majority of the eyes i.e. 74 (52.9%) were having IOP between 16 – 20 mm Hg. 61 eyes (43.6%) had IOP between 11 – 15 mm Hg. 80 eyes of 80 patients underwent MSICS, 17 (21.25%) patients developed Intraoperative Complications. Conclusion: There is significant association between Pseudoexfoliation syndrome and age, male preponderance and bilateral involvement of eyes. MSICS provides significant improvement in visual outcome in patients with Pseudoexfoliation syndrome with cataract.

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Ocular Biometry and Corneal Astigmatism in Patients Undergoing Cataract Surgery in Bheri Zone of Nepal

Journal of Nepalgunj Medical College ◽

10.3126/jngmc.v15i2.22846 ◽

2017 ◽

Vol 15 (2) ◽

pp. 53-57

Author(s):

Bikram Bahadur Thapa ◽

Y. Dhakal ◽

J. K. Verma ◽

P. Manandhar

Keyword(s):

Cataract Surgery ◽

Anterior Chamber ◽

Axial Length ◽

Anterior Chamber Depth ◽

College Teaching ◽

Visual Outcome ◽

Corneal Astigmatism ◽

Medical College ◽

The Mean ◽

Cataract Patients

Introduction: Accurate measurement of ocular axial length, keratometry and anterior chamber depth before cataract surgery is crucial for calculating the power of intraocular lens (IOL) to be implanted. Corneal astigmatism is one of the major thefts to have best postoperative unaided visual acuity. Thus, knowing it preoperatively and taking appropriate intervention during surgery provides best postoperative visual outcome. But there are no studies on corneal astigmatism and biometric parameters in the population of Bheri Zone. MATERIAL AND METHOD: The medical records of the patients who had ndergone cataract surgery between January 2017 and November 2017 at Nepalgunj medical college were retrospectively reviewed and analyzed. Patient's demographic parameter, keratometric value, anterior chamber depth, lens thickness and axial length data were collected and analyzed. RESULTS: This study evaluated the data in 65 eyes of 65 patients who had undergone cataract surgery. The mean age of patients was 59.3 ± 15.71 years. The mean corneal astigmatism was 1.37 D ±1.4D (range 0.00-6.75D). Corneal astigmatism was higher than 1.00 D in 32.3% of cases. The mean average keratometry was 44.54±1.83D. The magnitude of corneal astigmatism was positively correlated with age (p<0. 001) and there was a tendency for corneal astigmatism to increase with age above 50 years. Against-the-rule regular astigmatism was the most common type (46.2%) of astigmatism observed in this study. CONCLUSION: The present report showed the pattern of corneal astigmatism before cataract surgery in the patients at Nepalgunj Medical College Teaching Hospital. One third of cataract patients had corneal astigmatism of more than 1.0D. This finding provide the important normative reference and help ophthalmologists to plan and manage the cost-effective correction of preexisting corneal astigmatism in cataract patients to achieve the best visual outcome.

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

Medicina ◽

10.3390/medicina57050437 ◽

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.

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

10.21203/rs.3.rs-200270/v1 ◽

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.

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