scholarly journals Effect of benzalkonium chloride-preserved latanoprost and benzalkonium chloride-free latanoprost on intraocular pressure in patients of primary open angle glaucoma

Author(s):  
Anjleen Kaur ◽  
Shikha Palta ◽  
Hema Chhabra ◽  
Gursatinder Singh ◽  
Anita Gupta

Background: To evaluate the change in mean IOP with BKC-preserved latanoprost versus BKC-free latanoprost in patients of primary open angle glaucoma (POAG).Methods: This was an open-label, randomized, interventional, switch trial. Thirty patients of primary open angle glaucoma (POAG) who were already on benzalkonium chloride (BKC)-preserved latanoprost for a minimum of three months were recruited. Their intraocular pressure (IOP) was recorded at the baseline. Then, they were switched over to benzalkonium chloride (BKC)-free latanoprost for another three months. Their intraocular pressure (IOP) was recorded at both 6 and 12 weeks of follow-up.Results: IOP decreased from 15.57±0.85mm Hg at baseline to 15.40±0.89mm Hg at 6 weeks to 15.30±0.70mm Hg at 12 weeks. p value was found to be 0.209 and 0.115 at 6 and 12 weeks respectively. No statistically significant change was observed between mean IOP at both 6 and 12 weeks as compared to the baseline.Conclusions: BKC-free medications have equal IOP lowering effect as BKC-preserved medications in glaucoma patients.

2020 ◽  
Vol 36 (4) ◽  
Author(s):  
Erum Shahid ◽  
Uzma Fasih ◽  
Arshad Shaikh

Purpose:  To determine the outcomes of conventional trabeculectomy in terms of decrease in Intra Ocular Pressure (IOP) and improvement in visual acuity in patients of primary open glaucoma, coming to a tertiary care hospital. Study Design:  Retrospective case series. Place and Duration of Study:  Ophthalmology department of a tertiary care hospital from January 2017 to December 2018. Methods:  Patients undergoing trabeculectomy for Primary open angle glaucoma were included. Patients with repeated trabeculectomy, failed argon laser trabeculoplasty, advance cataract, corneal opacities and absolute glaucoma were excluded. All the trabeculectomies were done under retrobulbar anaesthesia after taking all aseptic measures. Primary outcome measures were preoperative and postoperative visual acuity, intraocular pressure, number of antiglaucoma medications and failed or successful trabeculectomy. Results:  Total 52 patients underwent trabeculectomy. There were 36 (69.2%) males and 16 (30.8%) females. Mean age was 56.73 years ± 10.9 SD. Mean preoperative IOP was 30.96 ± 6.71 mm Hg, post operatively IOP at 1 year it was 15.6 ± 4.2 mm Hg. P value was <.000. Mean number of antiglaucoma medications was 3.03 and 1.19, pre and post-operatively respectively (p value <.000). Improvement in visual acuity after trabeculectomy was seen in 32 (61.5%) patients. Complete Surgical success was seen in 28 (53.8%) and qualified success in 21 (40.4%) patients. Failed trabeculectomy was seen in 3 (5.8%) patients. Conclusion:  Conventional trabeculectomy is effective in lowering IOP in primary open angle glaucoma patients. It maintains IOP within normal range with and without anti-glaucoma medications at 1 year follow-up. Trabeculectomy significantly reduces number of anti-glaucoma medications. Key Words:  Intraocular pressure, Primary open angle glaucoma, Trabeculectomy.


2019 ◽  
Vol 35 (1) ◽  
Author(s):  
Uzma Fasih, Erum Shahid Arshad Sheikh

Purpose: To assess efficacy and safety of argon laser trabeculoplasty (ALT) to lower intra ocular pressure (IOP) as adjunctive treatment in primary open angle glaucoma (POAG) patients. Study Design: Descriptive Cross Sectional. Place and Duration of Study: Ophthalmology Department, Abbassi Shaheed Hospital from May 2016 to August, 2017. Materials and Methods: Primary open glaucoma patients were selected from eye OPD. Patients with Inflammatory, angle closure, traumatic glaucoma were excluded. Pre laser and Post laser IOP was measured at 1st week then at 1, 3 and 6 months. Data was collected and analyzed on SPSS version 20. There were 114 patients Results: There were 69 (61%) male patients. Mean age of patients was 60.53 ± 10.71 years. Mean pre laser Intraocular pressure was 23.98 ± 10.01 mm Hg. Mean post laser IOP at one month was 15.6 ± 3.25 and at 6 months was 14.8 ± 3.28 mm Hg. Overall mean reduction of IOP was 9.18 mm Hg from baseline, with p value less than < 0.005. Pre laser 3 medications were used by 20 (18%) and 2 medications by 49 (43%). At 6 months follow-up 4 (3.5%) patients were on 3 medications and 31 (37%) were on 2 medications. It has a p value < 0.005. Drug free patients at 6 months follow-up were 37 (33%). Mild iritis was seen in 7 (6.14%) patients. Conclusion: Argon Laser Trabeculoplasty is effective and safe method to control IOP in POAG when used as an adjunct to medical therapy. It also decreases number of drugs used by patients. Key Words: Argon laser trabeculoplasty, intraocular pressure, primary open angle glaucoma.


2021 ◽  
Author(s):  
Elshimaa A.Mateen ◽  
Hatem Gamal Ammar ◽  
Khulood Muhammad Sayed

Abstract Purpose: To evaluate specular microscopic changes of corneal endothelial cells (CEC) count and morphology in correlation to retinal nerve fiber layer RNFL changes detected by visual field (VF) and OCT in early and advanced primary open-angle glaucoma (POAG).Methods: A prospective observational comparative study was conducted on patients with POAG versus non-glaucomatous patients of the same age group. Specular microscopy, VF test, OCT scans of RNFL, and macular ganglion cell complex (GCC) were performed. Glaucoma group was further subdivided into early and advanced stages.Results: The study included 130 eyes of 130 subjects, 70 were eyes with POAG (glaucoma group), 60 were healthy eyes (control group). Both groups were comparable regarding mean age and sex.In the early glaucoma group, a significant negative correlation was found between the coefficient of variation (CV%) and superior PRNFL thickness (r=-0.5, p-value=0.018). A significant negative correlation was also found between percentage of cellular hexagonality (HEX%) and vertical cup/disc (C/D) ratio (r=-0.43, p-value= 0.035). A significant positive correlation was found between HEX% and (superior, inferior) PRNFL thickness (r=0.53, 0.5 and p-value= 0.008, 0.015) respectively.Mean CEC count was significantly lower in the advanced glaucoma group than in the control group (2958.7±371.2 vs 3085±172.5, p value=0.043). Conclusions: CEC is affected by chronic intraocular pressure (IOP) elevation just like the PRNFL and macular GCC. CEC morphology is insulted in the early stages of POAG while the count can withstand chronic IOP elevation till advanced stages were both are affected.


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