The Effects of Nd:YAG Laser Posterior Capsulotomy on Macular Thickness, Intraocular Pressure, and Visual Acuity

Purpose. The aim of this study is to examine the influence of capsulotomy size on, spherical equivalent (SE), intraocular pressure (IOP), and macular thickness.Materials and Methods. Sixty-eight patients were examined preoperatively and 1, 4, and 12 weeks after Nd:YAG capsulotomy. Patients were divided into two groups based on the postoperative capsulotomy size. Changes in SE, IOP, and macular thickness were compared between two groups.Results. We found a higher hyperopic shift in large capsulotomy group. In both groups 1 and 2, IOP increased 1 week postoperatively. Intraocular pressure rise in group 2 was higher than in group 1. Both groups had increased macular thickness at 1 week postoperatively. The degree of macular thickening was similar in group 1 and group 2.Comment. Patients who underwent a larger capsulotomy have a higher hyperopic shift and IOP elevation. Rise in macular thickness was similar in large and small capsulotomy groups.

Download Full-text

To evaluate the effects of Nd:YAG laser posterior capsulotomy on best corrected visual acuity (bcva) and intraocular pressure

Asian Journal of Medical Sciences ◽

10.3126/ajms.v8i5.17771 ◽

2017 ◽

Vol 8 (5) ◽

pp. 93-97

Author(s):

Ohm Vrajlal Patel ◽

Neha Chandrakar ◽

Piyush Bajaj ◽

Sonam Mahajan

Keyword(s):

Visual Acuity ◽

Intraocular Pressure ◽

Nd:Yag Laser ◽

Effective Means ◽

Anterior Segment ◽

Applanation Tonometry ◽

Yag Laser ◽

Posterior Capsulotomy ◽

Corrected Visual Acuity ◽

Best Corrected Visual Acuity

Background: Nd:YAG laser is non-invasive and effective means to deal with the posterior capsule opacification.However safe it may have some inherent complications. Rise of intraocular pressure is frequently encountered and incompletely understood complication of YAG laser capsulotomy and documented with conflicting results.Aims and Objective: To assess the efficacy of Nd: YAG laser capsulotomy in term of visual outcome(Best Corrected Visual Acuity) and also study the changes in IOP after the procedure.Materials and Methods: Study evaluated the changes in IOP and visual acuity after Nd-YAG laser capsulotomy in 100 eyes with significant PCO after uncomplicated cataract surgery with IOL implantation. Complete ocular examination including visual acuity, anterior segment examination with slit lamp, fundus and applanation tonometry were performed pre and post-laser in all cases. Posterior capsulotomy was done with VISULAS YAG III Q-switched Nd: YAG laser machine by ZEISS. IOP was recorded before and then at 1hour, 1 Day, 1 week and 1 month post-laser in order to determine the IOP changes.Results: Pre-laser visual acuity ranged from 1/60 to 6/12. Results showed statistically significant improvement in BCVA with 70% patients had BCVA 6/6, 21% had BCVA 6/9 and 8% having BCVA 6/12 post-laser at 1 month. It was observed that 36% of the patients showed no change in IOP while 64% patients showed elevated IOP. Among these 59% patients show rise in IOP that was ≤5 mm Hg while only 5% of the patients had a rise of more than IOP >5 mm Hg. Most of these patients achieved their baseline IOP within 1 day and only 7 % patient had rise in IOP compared to baseline IOP on day 1. None of the patients show elevated IOP after 1 week.Conclusion: Our study showed that Nd: YAG laser posterior capsulotomy provided excellent results in terms of visual improvement and most of the patients had a rise of <5mm Hg which was transient in nature and routine antiglaucoma medication may not be needed in all the patient undergoing Nd;Yag capsulotomy, however caution should be exercised in glaucomatous, aphakic, high myopic and other high risk patients.Asian Journal of Medical Sciences Vol.8(5) 2017 93-97

Download Full-text

Use of Topical Brimonidine to Prevent Intraocular Pressure Elevations Following Nd:YAG-Laser Posterior Capsulotomy

Ophthalmic Surgery Lasers and Imaging Retina ◽

10.3928/1542-8877-19990901-08 ◽

1999 ◽

Vol 30 (8) ◽

pp. 647-652

Author(s):

Sotirios P Gartaganis ◽

Ephigenia K Mela ◽

John M Katsimpris ◽

John K Petropoulos ◽

Nikos K Karamanos PhD ◽

...

Keyword(s):

Intraocular Pressure ◽

Nd:Yag Laser ◽

Posterior Capsulotomy

Download Full-text

The Effect of Apraclonidine on the Intraocular Pressure of Glaucoma Patients Following Nd:YAG Laser Posterior Capsulotomy

Ophthalmic Surgery Lasers and Imaging Retina ◽

10.3928/1542-8877-19930901-13 ◽

1993 ◽

Vol 24 (9) ◽

pp. 623-626

Author(s):

R Douglas Cullom ◽

Louis W Schwartz

Keyword(s):

Intraocular Pressure ◽

Nd:Yag Laser ◽

Posterior Capsulotomy

Download Full-text

Does Therapeutic Dose of Sildenafil Citrate Treatment Lead to Central Serous Chorioretinopathy in Patients With Erectile Dysfunction?

American Journal of Men s Health ◽

10.1177/1557988313480808 ◽

2013 ◽

Vol 7 (5) ◽

pp. 439-443 ◽

Cited By ~ 8

Author(s):

Elif Damar ◽

Yasin Toklu ◽

Altug Tuncel ◽

Melih Balci ◽

Yilmaz Aslan ◽

...

Keyword(s):

Visual Acuity ◽

Erectile Dysfunction ◽

Intraocular Pressure ◽

Therapeutic Dose ◽

Central Serous Chorioretinopathy ◽

Macular Thickness ◽

Sildenafil Citrate ◽

Optic Coherence Tomography ◽

Therapeutic Dosage ◽

Male Patients

The possible effects of sildenafil citrate administration at therapeutic dosage on visual acuity, color vision, intraocular pressure, macular thickness, macular volume, and central serous chorioretinopathy in patients with erectile dysfunction were evaluated. The study consisted of 43 male patients diagnosed as having erectile dysfunction according to the first five question version of International Index of Erectile Function (IIEF-5). All patients were given sildenafil citrate 50 mg po 2 to 3 times/week for a month. The patients were evaluated at the first week and at the end of the treatment. The macular thickness and volume assessments with optic coherence tomography did not differ significantly in foveal, parafoveal areas, parafoveal superior hemisphere, parafoveal inferior hemisphere, parafoveal temporal, superior, nasal, and inferior quadrants. Central serous chorioretinopathy was not found in any of the patients.

Download Full-text

Intraocular pressure control after Nd:YAG laser posterior capsulotomy in eyes with glaucoma

British Journal of Ophthalmology ◽

10.1136/bjo.2007.125310 ◽

2008 ◽

Vol 92 (3) ◽

pp. 337-339 ◽

Cited By ~ 10

Author(s):

J.-C. Lin ◽

L. J. Katz ◽

G. L. Spaeth ◽

J. M. Klancnik

Keyword(s):

Intraocular Pressure ◽

Nd:Yag Laser ◽

Pressure Control ◽

Posterior Capsulotomy

Download Full-text

Effect of intravitreal Triamcinolone (2mg) on diabetic macular oedema in the pseudophakic patient as primary treatment

International Journal of Research in Pharmaceutical Sciences ◽

10.26452/ijrps.v11i3.2507 ◽

2020 ◽

Vol 11 (3) ◽

pp. 3533-3539

Author(s):

Mohammed Qasim Al Nuwaini ◽

Giyathaldeen T. Neameh ◽

Mustafa A. Al Zubaidi Md ◽

Farook M. Albusultan

Keyword(s):

Visual Acuity ◽

Intraocular Pressure ◽

Intravitreal Injection ◽

Macular Oedema ◽

Diabetic Macular Oedema ◽

Visual Outcome ◽

Primary Treatment ◽

Macular Thickness ◽

Central Macular Thickness ◽

Intravitreal Triamcinolone

Diabetic macular oedema is still a significant cause of vision drop in the diabetic patient with no definitive regime for treatment. This study was on the result of effects of intravitreal injection of (2mg) triamcinolone on central macular thickness measured by OCT, visual acuity and intraocular pressure in pseudophakic eyes with diabetic macular oedema as a primary treatment line followed in six months. This study is a prospective, interventional case study series. It was on patients who received intravitreal injection of Triamcinolone in a single dose of ( 2 mg/0. 05 ml). Central macular thickness by OCT, visual acuity, and intraocular pressure was measured pre-injection and 1,3,6 months after injection. This study was performed in Iraq, Baghdad, Ibn Al-Haitham Teaching Eye Hospital from October 2014 to July 2015. Results showed 25 eyes received intravitreal injection of Triamcinolone Acetoniod with pre-injection central macular thickness 597.9+98.02 µm, visual acuity 1.096+0.61 Log MAR and intraocular pressure of 16.5+ 2.53 mmHg. After six months of follow up on central macular thickness 341.6+163.1 µm, visual acuity was 0.63 + 0.40 Log MAR and IOP was 18. 04+ 5. 63mmHg. This study suggests that intravitreal injection of Triamcinolone in a dose 2mg / 0. 05ml improves both anatomical and visual outcome in 21 eyes (84%) out of 25 pseudophakic eyes with diabetic macular oedema during first six months after injection and an increase in intraocular pressure in 2 eyes (8%). The intraocular pressure was despite the use of anti-glaucoma medications during this period.

Download Full-text

Dexamethasone intravitreal implant for macular edema: a pilot study in a public health center

ABCS Health Sciences ◽

10.7322/abcshs.2020s04.1851 ◽

2020 ◽

Vol 45 (Suppl.3) ◽

pp. e020104

Author(s):

Maria Júlia Izzo Crespo ◽

Cristina Nery Carbajo ◽

Glaucia Luciano da Veiga ◽

Fernando Luiz Affonso Fonseca ◽

Vagner Loduca Lima ◽

...

Keyword(s):

Public Health ◽

Visual Acuity ◽

Intraocular Pressure ◽

Macular Edema ◽

Vision Loss ◽

Therapeutic Option ◽

Macular Thickness ◽

Central Macular Thickness ◽

Cross Sectional

Introduction: Macula edema consists in one of the most common causes of visual impairment. Objective: To evaluate the safety and efficacy of continuous release of 0.7 mg dexamethasone (using implantable device) for treatment of macular edema. Methods: Cross-sectional observational study of 16 patients treated with 0.7 mg dexamethasone intraocular implant. Visual acuity, intraocular pressure and central macular thickness were recorded at baseline, 1-month and 3-month follow-up. Results: 15 eyes of 13 patients were included. Most eyes (n=9) improve visual acuity from baseline at 1-month follow-up; this improvement persisted through 3-monyh follow-up in six eyes. The central macular thickness decreased in the majority of the subjects at 1-month (n=12) and at 3-month (n=10) follow-up. Three eyes presented with elevated intraocular pressure. Conclusion: Dexamethasone implant can both reduce the risk of vision loss and improve anatomical features of macular edema due to several pathologies studied. This implant may be used safely and should be considered a therapeutic option to Brazilian Public Health System.

Download Full-text