Managing Primary Open-angle Glaucoma – Ocular Tolerability, Compliance, Persistence and Patient Outcomes

2009 ◽  
Vol 03 (01) ◽  
pp. 19 ◽  
Author(s):  
Anton Hommer ◽  

Primary open-angle glaucoma (POAG) is a progressive optic neuropathy that, left untreated, can lead to irreversible damage to the optic nerve and permanent vision loss. To date, intraocular pressure (IOP) is the only modifiable risk factor for disease progression, and topical eye-drops are currently used as the leading non-surgical glaucoma therapy. Despite the efficacy of pharmacotherapy in lowering IOP, success is ultimately defined by patient compliance and patient persistence. Ocular tolerability is a crucial factor in patient compliance and persistence; non-adherence owing to adverse effects can lead to poor control of IOP and treatment failure. Prostaglandin analogues are currently the first-line antiglaucoma agents, with a good tolerability profile and a better IOP-lowering effect compared with β-blockers. Combination therapies have also shown greater efficacy in lowering IOP compared with the individual constituents, with fewer adverse effects. Treatment should be tailored to the individual patient, with a focus on ocular tolerability and its role in adherence, compliance and vision preservation.

2021 ◽  
Vol 18 ◽  
Author(s):  
Francine Rubião ◽  
Alan Cezar Faria Araújo ◽  
João Bernardo Sancio ◽  
Bárbara Silva Nogueira ◽  
Juçara Ribeiro Franca ◽  
...  

Background: The most common treatment for primary open-angle glaucoma (POAG) is the daily use of eye drops. Sustained-release drug delivery systems have been developed to improve patient adherence by achieving prolonged therapeutic drug concentrations in ocular target tissues while limiting systemic exposure. The purpose of this study is to compare the efficacy and safety of bimatoprost inserts with bimatoprost eye drops in patients with POAG and ocular hypertension (OH). Methods: We include OH and POAG patients aged between 40 and 75 years-old. Both OH and POAG patients had intraocular pressure (IOP) greater than 21 and ≤30 mmHg at 9:00 am without glaucoma medication and normal biomicroscopy. Five normal patients with IOP≤14 mmHg constitute the control group. A chitosan-based insert of bimatoprost was placed at the upper conjunctival fornix of the right eye. In the left eye, patients used one drop of LumiganTM daily at 10:00 pm. For statistical analysis, we used a two-way analysis of variance (ANOVA), Student t-test, and paired t-test. Results: Sixteen POAG and 13 OH patients with a mean age of 61 years were assessed. In both eyes, IOP reduction was similar during three weeks of follow-up (19.5±2.2 mmHg and 16.9±3.1 mmHg), insert, and eye drop, respectively; P=0.165). The percentage of IOP reduction in the third week was 30% for insert and 35% for eye drops (P=0.165). No intolerance or discomfort with the insert was reported. Among the research participants, 58% preferred the use of the insert while 25% preferred eye drops, and 17% reported no preference. Conclusions: Bimatoprost-loaded inserts showed similar efficacy to daily bimatoprost eye drops during three weeks of follow up, without major side effects. This might suggest a possible change in the daily therapeutic regimen for the treatment of POAG and OH.


2012 ◽  
Vol 46 (4) ◽  
pp. 172-176
Author(s):  
Sukhsagar Ratol ◽  
Rani Walia ◽  
Mridu Chaudhry

ABSTRACT Background Glaucoma is a leading cause of irreversible blindness. The fundamental problem in medical management of glaucoma is of patient compliance. An ideal drug or a drug combination is needed to slow the progression of this majorly symptomless disease. Aim To compare the efficacy and tolerability of the fixed combination latanoprost and timolol instilled once daily in the evening vs fixed combination of dorzolamide and timolol instilled twice daily in primary open angle glaucoma or ocular hypertension. Materials and methods A 12-week, randomized, open, parallel group study including 50 patients with primary open angle glaucoma or ocular hypertension was conducted at a tertiary care hospital. Patients were randomized to group 1, (fixed combination (FC) latanoprost and timolol eye drops, once daily in evening) and group 2, (FC dorzolamide and timolol eye drops, twice daily). At baseline, 2, 4 and 12 weeks, IOP was recorded at 9 AM and 12 noon. The difference in IOP reduction in two treatment groups from baseline to 12 weeks was the main outcome measure. Results Mean diurnal IOP was similar at baseline for both groups. Mean reduction in IOP from baseline to 12 weeks was 9.92 mm Hg (p = 0.001) in group 1 and 9.22 (p = 0.001) in group 2. The reduction in IOP in both groups 1 and 2 was statistically significant at all time intervals. There was a statistically significant advantage for group 1 at 12 weeks for both time readings (p = 0.013 and 0.002 respectively) as compared to group 2. Conclusion The fixed combination of latanoprost and timolol was more effective than that of dorzolamide and timolol in reducing mean diurnal IOP and both treatments were well tolerated. To confirm further such studies are required. How to cite this article Ratol S, Walia R, Chaudhry M. A Comparative Analysis of the Efficacy and Safety of fixed Combinations of Latanoprost/Timolol vs Dorzolamide/Timolol in Primary Open Angle Glaucoma or Ocular Hypertension. J Postgrad Med Edu Res 2012;46(4):172-176.


Cells ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 1518 ◽  
Author(s):  
Jennifer A. Faralli ◽  
Mark S. Filla ◽  
Donna M. Peters

Primary open angle glaucoma (POAG) is the most common form of glaucoma and the 2nd most common cause of irreversible vision loss in the United States. Nearly 67 million people have the disease worldwide including >3 million in the United States. A major risk factor for POAG is an elevation in intraocular pressure (IOP). The increase in IOP is believed to be caused by an increase in the deposition of extracellular matrix proteins, in particular fibronectin, in a region of the eye known as the trabecular meshwork (TM). How fibronectin contributes to the increase in IOP is not well understood. The increased density of fibronectin fibrils is thought to increase IOP by altering the compliance of the trabecular meshwork. Recent studies, however, also suggest that the composition and organization of fibronectin fibrils would affect IOP by changing the cell-matrix signaling events that control the functional properties of the cells in the trabecular meshwork. In this article, we will discuss how changes in the properties of fibronectin and fibronectin fibrils could contribute to the regulation of IOP.


2019 ◽  
Vol 103 (10) ◽  
pp. 1524-1529
Author(s):  
Lei Lei ◽  
Shushan Li ◽  
Xiangyun Liu ◽  
Chun Zhang

PurposeTo characterise the genotype(s), phenotype(s) and age-related penetrance of glaucoma in a Chinese family with primary open-angle glaucoma (POAG).MethodsRecruited from a Chinese family spanning four generations, 7 individuals with POAG, 1 with ocular hypertension (OHT) and 14 unaffected individuals were included in this study. Genotypic investigation included sequencing of mutation sites using a glaucoma panel in combination with high-throughput sequencing and validated using Sanger sequencing. Phenotypic characterisation included investigation into patient medical history and physical examination.ResultsEight (36.4%) family members harboured heterozygous Y437H mutation, of whom seven (87.5%) were glaucomatous and one (12.5%) had OHT. The mean age of POAG diagnosis was 30.85±7.13 years. The mean highest recorded intraocular pressure (IOP) was 46.57±6.53 mm Hg. They all had complained of symptoms associated with vision and pain. Four (57.1%) patients presented blindness. Five eyes (62.5%) presented with severe and three eyes with moderate visual field defects. Most of them underwent surgery on average 1.29±2.36 years after diagnosis, and the mean IOP at study was 17.95±7.23 mm Hg, with an average of 0.92±0.86 eye-drops. The patient with OHT was treated with latanoprost only and her IOP was well controlled. Age-related glaucoma penetrance was 0% in individuals under the age of 20 years, 50% at ages 20–35 years, 75% at ages 31–35 years and 87.5% over 45 years.ConclusionA novel MYOC mutation (c.1309T>C, p.Y437H) in a Chinese family with POAG was identified which was associated with a phenotype characterised by severe visual impairment, frequent surgical intervention requirement and relatively high penetrance.


2013 ◽  
Vol 11 (2) ◽  
pp. 93-95
Author(s):  
Fei Liu ◽  
Bang-lei Li ◽  
Jing-feng Yang ◽  
Li-na Song ◽  
Kai Tang ◽  
...  

2019 ◽  
Vol 1 (3) ◽  
pp. 170-180
Author(s):  
Lim Chuan Chun ◽  
Jelinar Mohamed Noor ◽  
Norlina Mohd Ramli ◽  
Ch'ng Tun Wang ◽  
Gan Eng Hui

Introduction: Selective laser trabeculoplasty (SLT) has been demonstrated to lower intraocular pressure (IOP) and reduce the number of topical medications used in patients with primary open-angle glaucoma (POAG). Purpose: The purpose of our study was to investigate the sustainability and efficacy of SLT in treating POAG at one year following laser. To our knowledge, this is one of the first studies to be published based on local data in Malaysia. Study design: This was a retrospective study conducted in a specialist eye clinic, Hospital Kuala Lumpur, from July 2017 until January 2019. Data was collected from the medical notes of the patients. Materials and methods: The study recruited cases of POAG patients who were using topical antiglaucoma medications. Inclusion criteria were patients with unilateral or bilateral POAG aged 50 years and above. Exclusion criteria were secondary open-angle glaucoma and all forms of angle-closure glaucoma. Patients who had undergone trabeculectomy or glaucoma drainage devices were excluded in our study. A single session of 360° SLT using a Q-switched Nd:YAG laser with an initial energy of 0.8 mJ was performed. IOP and number of antiglaucoma medications were recorded at prestudy, 1 week, 1 month, 3 months, 6 months, and 12 months. Results: In 17 eyes, mean prestudy IOP was 19.3 ± 3.3 mmHg while on 2.18 ± 0.7 eye drops. At 12 months after SLT, mean IOP was 13.3 ± 3.5 mmHg while on 1.88 ± 0.9 IOP-lowering eye drops. This represented a 31% reduction of IOP compared to prestudy levels. However, the reduction of number of medications was not statistically significant. Conclusion: A single session of 360° SLT treatment for POAG patients is able to lower IOP by 31% at one year following laser. SLT is a safe and effective procedure for reducing IOP. It may be used as adjuvant therapy, especially in noncompliant patients; patients who have difficulty applying topical eye drops or who are intolerant to topical medication.


2018 ◽  
Vol 29 (4) ◽  
pp. 437-443 ◽  
Author(s):  
Javier Benitez-del-Castillo ◽  
Jorge Cantu-Dibildox ◽  
Silvia M Sanz-González ◽  
Vicente Zanón-Moreno ◽  
Maria Dolores Pinazo-Duran

Background: The aim of this study was to assess the expression of cytokines/chemokines in tears from patients with non-advanced primary open-angle glaucoma and patients with non-severe dry eye disease versus healthy controls. Methods: This prospective, observational cohort study enrolled patients with confirmed or suspected non-advanced primary open-angle glaucoma who received any prostaglandin analogue monotherapy for longer than 6 months, patients with non-severe dry eye disease, and healthy controls. Expression of interleukin-1β, interleukin-2, interleukin-4, interleukin-5, interleukin-6, interleukin-8, interleukin-10, and interleukin-12; tumor necrosis factor α; vascular endothelial growth factor; granulocyte-macrophage colony-stimulating factor; and interferon γ was assessed. Results: 107 participants were enrolled (primary open-angle glaucoma, n = 41; dry eye disease, n = 30; and healthy controls, n = 36). Compared with healthy controls, interleukin-6 was significantly higher ( p = 0.0001) in patients with primary open-angle glaucoma and interleukin-1β ( p = 0.0144), interleukin-6 ( p < 0.0001), and interleukin-10 ( p = 0.0392) were higher in patients with dry eye disease. Compared with patients with dry eye disease, patients with primary open-angle glaucoma had significantly lower levels of interleukin-4 (21.79 vs 20.18 pg/mL; p = 0.0012) and significantly higher levels of vascular endothelial growth factor (367.75 vs 609.28 pg/mL; p = 0.0058), tumor necrosis factor α (14.27 vs 17.93 pg/mL; p = 0.0048), and interleukin-6 (17.95 vs 27.48 pg/mL; p = 0.0145). In patients with primary open-angle glaucoma, interleukin-1β expression ( p = 0.0011) was lower than in those who received intraocular pressure–lowering eye drops without preservatives compared with those who received eye drops with preservatives. Conclusion: Different cytokine/chemokine expression profiles in tears of patients with primary open-angle glaucoma and dry eye disease strongly suggest the involvement of a variety of signaling pathways in the pathogenesis of these ophthalmic processes.


2021 ◽  
Vol 29 (02) ◽  
pp. 93-97
Author(s):  
Falak Naz ◽  
Muhammad Saleh Faisal ◽  
Waheed Iqbal ◽  
Momina Naz ◽  
Muhammad sajid Khan ◽  
...  

ABSTRACT Objective: To compare levobunolol and travoprost for lowering the intra-ocular pressure (IOP) in patients of ocular hypertension and primary open-angle glaucoma. Materials and Methods: A Quasi experimental study was conducted in the ophthalmology department of Khyber Teaching Hospital, Peshawar. 120 patients of both genders and age between 18-80 years with ocular hypertension or primary open angle glaucoma requiring single pressure lowering drug were enrolled in the study. Subjects were divided into two groups (60 in each). One group was treated with travoprost eye drops (0.004%, OD) while other group with levobunolol eye drops (0.5%, OD). After initial screening visit where demographic data and baseline IOP was recorded on structured proforma, three follow-up visits were arranged each at 02 weeks interval. At each follow-up visit, IOP was recorded by standard protocols to evaluate and compare the ocular hypotensive efficacy of study drugs by calculating mean IOP change from the baseline. Only patients with no missing IOP measurements for all visits were considered eligible for the efficacy evaluation. Results: A total of 120 patients were observed having age range from 18 years and above with mean age 52.16 ± 9.56 and predominance of male gender. Upon comparative analysis, no significant statistical difference (p value >0.05) was observed in the ocular hypotensive efficacy of levobunolol and travoprost measured at each follow-up visit, indicating both the drugs equally effective. Moreover, age groups did not reveal any significant statistical impact on the treatment outcome of patients treated with either study drug. Conclusion: Though both the drugs are equally effective, levobunolol is better option than travoprost for the treatment of glaucoma because of its fast onset of action, cost effectiveness and easy availability.


2021 ◽  
Vol 2 (1) ◽  
pp. 8-17
Author(s):  
Mashael Al-Namaeh

Background: Glaucoma is a progressive, irreversible optic neuropathy that results in serious vision loss and blindness. This review aimed to summarize key concepts of primary open angle glaucoma (POAG) pharmaceutical treatment trials over the last decade. Methods: We searched PubMed/MEDLINE and clinicaltrials.gov from January 1, 2010, to August 31, 2020, using the key words “POAG” and “Ocular topical therapeutics”. This search yielded 77 and 120 papers, respectively. Results: Thirty-three records were compatible with our inclusion criteria. Pharmaceutical treatment is a common intervention in POAG for lowering IOP. Prostaglandin (PG) analogues are most commonly recommended as initial medical therapy, which are administrated either as a monotherapy or in combination with other IOP-lowering classes of medications. Alternative therapies, such as ?-blockers, ?-2 adrenergic receptor agonists, and topical carbonic anhydrase inhibitors, have been used in combination or as a monotherapy. Rho-kinase inhibitors, such as netarsudil 0.02%, AR-13324 0.02%, and ripasudil are new IOP-lowering medications. Despite IOP reduction, there is a significant number of patients with POAG that may experience disease progression, and the risk of blindness over the long term is considerable. Conclusions: Clinical trials have indicated that pharmaceutical treatment of POAG is effective and safe. In addition, the new novel Rho-kinase inhibitors have shown significant IOP reduction. The new fixed combinations have also yielded significant reductions in IOP. POAG is a cause of irreversible vision loss, if not diagnosed and treated early. The condition is likely to progress in a significant number of patients, with a considerable risk of blindness in the long-term. How to cite this article: Al-Namaeh M. Pharmaceutical treatment of primary open angle glaucoma. Med Hypothesis Discov Innov Optom. 2021 Spring; 2(1): 8-17. DOI: https://doi.org/10.51329/mehdioptometry120


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