Clinical Trials Logo

Primary Angle Closure Glaucoma clinical trials

View clinical trials related to Primary Angle Closure Glaucoma.

Filter by:

NCT ID: NCT06333470 Not yet recruiting - Clinical trials for Primary Angle-Closure Glaucoma

Liwan Eye Study: the Fourth Follow-up

Start date: March 30, 2024
Phase:
Study type: Observational

Primary angle-closure glaucoma (PACG) is one of the major causes of blindness affecting more than 20 million patients worldwide. The goals of this observational cohort study are to investigate the 20-year incidence of PACG in Chinese population aged 50 years and to develop prediction models for the long-term risk of progression from primary angle-closure suspect (PACS) to PACG.

NCT ID: NCT06252246 Completed - Clinical trials for Primary Angle Closure Glaucoma

The Effect of Phacoemulsification on Intraocular Pressure in Primary Angle Closure Glaucoma (PACG) Patients At Phanat Nikhom Hospital, Chonburi Province

Start date: October 1, 2017
Phase:
Study type: Observational

BACKGROUND: Primary angle closure glaucoma (PACG) is one of a leading cause of blindness worldwide including Thailand. This problem impact to the overall health of people and health care system. Treatment guidelines of each stage is differenced. Therefore, factors that affect to treatment should be explored to plan for taking care patients in the future. OBJECTIVES: The study aimed to examine the effects of cataract surgery by phaco- emulsification on intraocular pressure and to determine the factors associated with intraocular pressure among primary angle closure glaucoma patients.

NCT ID: NCT06184620 Completed - Clinical trials for Primary Angle Closure Glaucoma

Correlation Between Angle Closure Glaucoma Data and Lens Zonule Status

Start date: December 1, 2020
Phase:
Study type: Observational

The goal of this observational study is to discuss the correlation between primary angle-closure glaucoma and the state of the suspended ligament of the lens and the pathogenesis of PACG by measuring the biological data of primary angle-closure glaucoma and observing its anatomical changes.

NCT ID: NCT05163951 Recruiting - Clinical trials for Primary Angle Closure Glaucoma

Trabeculectomy Versus Peripheral Iridectomy Plus Goniotomy in Advanced PACG

TVG
Start date: January 5, 2022
Phase: N/A
Study type: Interventional

A multicenter, parallel, open, non-inferior randomized controlled trial is conducted to compare the effectiveness and safety of trabeculectomy and peripheral iridectomy plus goniotomy (TVG) in the treatment of advanced primary angle closure glaucoma with no or mild cataracts.

NCT ID: NCT05052242 Completed - Clinical trials for Primary Angle Closure Glaucoma

Evaluation of Ocular Biometry in PACD With Two Swept Source Optical Coherence Tomography Devices

Start date: May 1, 2020
Phase:
Study type: Observational

Purpose: To investigate agreement between 2 swept source OCT biometers, IOL M.aster700 and Anterion, in various ocular biometry and intraocular lens (IOL) calculations of primary angle-closure disease (PACD). Methods: This was a prospective study conducted in a tertiary eye care centre involving biometric measurements obtained with 2 devices in phakic eye with diagnosis of PACD. Mean difference and intraclass correlation coefficient (ICC) with confidence limits were assessed, and calculations of estimated residual refraction of the IOL were analysed using Barrett's formula.

NCT ID: NCT04972435 Completed - Senile Cataract Clinical Trials

Effect of Multifocal Intraocular Lens on Contrast Sensitivity in Primary Angle-Closure Patients

Start date: January 2, 2014
Phase: N/A
Study type: Interventional

This prospective study included patients with primary angle-closure (PAC or primary angle-closure glaucoma (PACG) and visually significant cataract. Phacoemulsification with multifocal intraocular lens (MIOL) or monofocal IOL (mIOL) (patient preference) was performed. Collected data included best-corrected distant visual acuity (BCVA), intraocular pressure (IOP), anterior chamber depth (ACD), and contrast sensitivity (CS) measured at spatial frequency 1.5, 3.0, 6.0, 12.0, and 18.0 cycles per degree (CPD) preoperatively, and at 2-6 months postoperatively. Preoperative and postoperative parameters were compared to evaluate the effect of MIOL on CS in eyes with PAC or PACG.

NCT ID: NCT04736264 Recruiting - Clinical trials for Primary Open Angle Glaucoma

Malay Glaucoma Eye Study II Navigation, Mobility and Reading Ability in Primary Glaucoma

MaGESII
Start date: October 1, 2020
Phase: N/A
Study type: Interventional

With the improvement of health system, the life span of Asians has increased tremendously especially in Malaysia. As an early preparation to be an 'aging country' in 2023, Malaysia needs to prepare infrastructure and policy to improve quality of life (QoL) in older adults. Glaucoma is an aging related chronic disease that cause progressive optic neuropathy and visual field defect1. The main aim of glaucoma treatment is to slow down disease progression and preserve patient's QoL2. Modification of intraocular (IOP) is believed to be the mainstay of treatment but may not prevent progression of the disease. Modification of lifestyle has been found to change the prognosis of many chronic diseases such as diabetes mellitus. However, there is minimal evidence on the effect of lifestyle modification on glaucoma. Although constricted visual field almost asymptomatic especially in primary open angle glaucoma but many domestic injuries such as fall has been reported. Glaucoma patients reported greatest restriction with mobility especially driving compared to the other domains3,4. Reduction of walking and moderate-to-vigorous physical activity was also found in those with bilateral visual field loss5. Progressive constriction of visual field has been found to increase dependency, reduce mobility, pleasure of reading and QoL of glaucoma patients6. This will lead to psychological and emotional disturbance, in certain cases even resulted in depression. On the other hand, being physically active is found to have some protective effect against development and severity of glaucoma8,9. Thus, identifying problems related to physical activities in constricted visual field is important for improvement of rehabilitation and exercise regime for glaucoma patients. An exercise regime must be effective without causing major changes to IOP, safe in patients with constricted visual field and sensitive to social culture of Malaysians. Addressing these issues will lessen dependency and promotes healthy living among older adults. Improvement in navigation perhaps may increase the physical activities in glaucoma. Reading is another important pleasure in life. Visual field defect in glaucoma patients has been reported to associate with slower reading speed, saccade rate and visual span10,11. Identification of factors associated with difficulty in reading among glaucoma patients and development of rehabilitation regime in reading may improve the happiness index in literate patients. Nevertheless, there is no specific rehabilitation program to improve reading abilities among glaucoma patients. A combination of visual rehabilitation of low vision therapy and occupational therapy is ideal. Although, there is improvement in reading ability and mobility post low visual aid rehabilitation but there is no evidence on glaucoma patients specifically12. Improvement in daily living and dependency may improve their QoL. Happiness perhaps may improve the balance between oxidative stress damage and antioxidant level. Many previous studies discovered that various biomarkers of oxidative stress are elevated in people with depression, and anxiety disorders13. Similarly, oxidative stress has been implicated in pathogenesis of glaucoma and accelerates retinal ganglion cell damage in glaucoma14. Indirectly, improvement of QoL will help in halting the progression of visual field defect. Based on the previous research project on Malays in Malaysia, navigation and mobility has been identified to be mostly affect in primary glaucoma patients based on QoL questionnaires. Physical activities have potential protective effect against progression and severity of glaucoma9. Improvement in navigation, physical activities and reading ability, perhaps may improve their QoL. The main problem is how do we improve their navigation, physical activities and reading ability despite their constricted visual field. The most important step is to understand the problem and issues pertaining to the navigation, physical activities and reading faced by patients with glaucoma.

NCT ID: NCT04622605 Completed - Clinical trials for Primary Angle Closure Glaucoma

Hydrus Microstent and Lens Extraction for the Treatment of Primary Angle-Closure Glaucoma

Start date: June 13, 2017
Phase: N/A
Study type: Interventional

This study is a prospective evaluation of the Hydrus Microstent for the treatment of Primary Angle Closure (PAC) and Primary Angle Closure Glaucoma (PACG) with adjunctive cataract. A total of 20 subjects will be successfully treated with one Hydrus device after completion of cataract extraction with phacoemulsification followed by IOL replacement (HMS cohort), and 10 eyes will be treated with phacoemulsification cataract extraction and IOL replacement only (PCS group). Since cataract surgery is standard of care for this condition, eligible fellow eyes from the HMS cohort may be enrolled into the PCS group. To avoid selection bias in this non-randomized study, the first 20 consecutive qualifying subjects will be treated with Hydrus and the next 10 consecutive qualifying eyes will be treated with cataract surgery only.

NCT ID: NCT04609345 Not yet recruiting - Ocular Hypertension Clinical Trials

Prevalence of Ocular Surface Disease in Malaysian Glaucoma Patients

Start date: November 2020
Phase:
Study type: Observational

This is a prospective, multi-centre, cross sectional observational study to determine the prevalence of ocular surface disease (OSD) in glaucoma patients, nationwide. The study also analyses sub group of OSD prevalence, stratified according to the treatment types (i.e. preserved, preservative-free, and combination of preservative-free and preserved eyedrops), and illustrates the patient perspective on OSD.

NCT ID: NCT03647033 Completed - Clinical trials for Primary Angle-Closure Glaucoma

Phacoemulsification Versus Phacoemulsification With Micro-bypass Stent

Start date: October 14, 2015
Phase: N/A
Study type: Interventional

Assessing the safety and efficacy of a micro-bypass stent in combination with cataract surgery in subjects with primary angle closure. Subjects are randomized into two arms: phacoemulsification cataract surgery alone versus phacoemulsification cataract surgery combined with the micro-bypass stent implantation. Post surgery intraocular eye pressure will be recorded to assess the efficacy of both arms.