scholarly journals Photovoltaic Restoration of Central Vision in Atrophic Age-Related Macular Degeneration

Ophthalmology ◽  
2020 ◽  
Vol 127 (8) ◽  
pp. 1097-1104 ◽  
Author(s):  
Daniel Palanker ◽  
Yannick Le Mer ◽  
Saddek Mohand-Said ◽  
Mahiul Muqit ◽  
Jose A. Sahel
Keyword(s):  
Macular Degeneration ◽  
Age Related Macular Degeneration ◽  
Central Vision ◽  
Age Related

Implantation of the First IMT Macular Lens in Age-Related Macular Degeneration (Literature Review)

2019 ◽  
Vol 4 (4) ◽  
pp. 56-60
Author(s):  
M. M. Bikbov ◽  
O. I. Orenburkina ◽  
A. E. Babushkin
Keyword(s):  
Visual Field ◽  
Macular Degeneration ◽  
Peripheral Vision ◽  
Age Related Macular Degeneration ◽  
Central Vision ◽  
Central Visual Field ◽  
Visual Rehabilitation ◽  
Age Related ◽  
Terminal Form ◽  
Special Programs

This review presents the characteristics and results of clinical studies of patients with age-related macular degeneration implanted with the developed for this purpose first macular IOL – intraocular macular telescope (IMT). This lens was designed specifically for patients with the most severe or terminal form of age-related macular degeneration and is designed for monocular implantation to provide central vision while maintaining peripheral vision of the paired eye, which is important for maintaining the balance and orientation of patients. This device allows patients to see both in dynamic and static situations in the near, intermediate and far ranges. The disadvantages of this lens are a decrease in the visual field and depth of focus (which excludes its bilateral implantation), the need for a large (10–12 mm) incision for implantation, which can cause an increase in corneal astigmatism and the risk of complications, in particular, the pupillary block with an increase in intraocular pressure. There are also difficulties in the study of the fundus after its implantation to assess the small changes in the macula or to identify possible postoperative complications after cataract surgery (macular oedema, etc.). Also after the implantation of this lens, there is need for special programs of visual rehabilitation. The patient’s commitment to the rehabilitation measures for the adaptation of the central visual field of the operated eye with the peripheral vision of the second eye is crucial for success of the IMT macular telescope implantation procedure.

scholarly journals Nutritional Therapy in Dry-form (Non-Neovascular) Age-Related Macular Degeneration

2017 ◽  
pp. 135-144
Keyword(s):  
Macular Degeneration ◽  
Treatment Options ◽  
Nutritional Therapy ◽  
Age Related Macular Degeneration ◽  
Central Vision ◽  
Multiple Factors ◽  
Age Related ◽  
Health Factors ◽  
Degenerative Disorder ◽  
Systemic Health

Age-related macular degeneration (AMD) is a progressive degenerative disorder of the macula in which central vision becomes impaired and leading cause of blindness in adults older than 55 years. Multiple factors have been proposed for the pathogenesis of AMD including genetic susceptibility interacting with environmental and systemic health factors. Nowadays, treatment options for dry-form AMD are limited. Among these treatments, nutritional therapy is at the forefront. This review mentions about the nutritional therapy in dry-type AMD.

scholarly journals AGE RELATED MACULAR DEGENERATION (ARMD) CLINICAL PROFILE AND MANAGEMENT

2021 ◽  
Vol 5 (02) ◽  
Author(s):  
Sanjay Thokare
Keyword(s):  
Macular Degeneration ◽  
Visual Loss ◽  
Age Related Macular Degeneration ◽  
Macular Area ◽  
Central Vision ◽  
Loss Of Vision ◽  
Age Related ◽  
Gradual Loss ◽  
Wet Amd ◽  
Additional Option

Age Related Macular Degeneration (ARMD) next to cataract is the leading cause  visual loss in elderly. My study is to focus on cleanical profile of Age Related Macular Degeneration with effective Ayurveda management to increasing in average longitivity of an individual with advance in science and technology along with traditional  management.In research scenario it has been demonstrated that choroidal neovascular lesion of Age Related Macular Degeneration. Account for most of severe loss of vision attributed to this condition. My study tries to give additional option and contribution of Ayurveda to patient affected with Age Related Macular Degeneration. Macula is area which correspond to centre of vision. There are two types Dry and Wet ARMD based on appearance of  exudates and tiny haemorrhage in the macular area . in wet AMD treatment of Raktpitta should be followed. Though  description of macular degeneration is not described is classics . Gradual loss of vision in Timira we can assume this regenerative pathology as Prakopita Vatalakshana in Drushti Mandala .  Inn proper Tarpak Kapha result in weakening of function and death of life sensing cells of macula . In dry Age Related Macular Degeneration this cells breakdown slowly and result in loss of central vision . These can be stated Kaphavata Drushtijanya Timira . In case of wet AMD abnormal blood vessels start to grow under macula and eventually bleed . This explains Raktpitta Drushti . Management of Age Related Macular Degeneration should be done on the principle of Vatavyadhi with Rasayan Chikitsa . 

scholarly journals Current classification of macular neovascularization in the course of AMD based on the Consensus Nomenclature for Reporting Neovascular Age-Related Macular Degeneration Data

2021 ◽  
Vol 8 (1) ◽  
pp. 5-10
Author(s):  
Anna Piotrowicz ◽  
Katarzyna Paczwa ◽  
Joanna Gołębiewska ◽  
Radosław Różycki
Keyword(s):  
Macular Degeneration ◽  
Expert Panel ◽  
Vision Impairment ◽  
Age Related Macular Degeneration ◽  
Central Vision ◽  
Subretinal Neovascularization ◽  
Therapeutic Techniques ◽  
Age Related ◽  
Current Classification

Despite the improvement of diagnostic and therapeutic techniques age-related macular degeneration is still one of the main causes of central vision impairment. Throughout the years, the classification of subretinal neovascularization in the course of age-related macular degeneration has changed due to the advancement of diagnostic and therapeutic techniques. In 2020 an expert panel reached consensus on a new nomenclature for neovascularization in the course of age-related macular degeneration introducing the concept of macular neovascularization, which refers to each neovascularization in macula, regardless of the location.

scholarly journals Revisión Bibliográfica: Degeneración Macular Relacionada con la Edad. Prevención y Tratamiento Temprano

2018 ◽  
Vol 10 (2) ◽  
pp. 145-149
Author(s):  
Katerine Leonor Ávila Heras ◽  
Yadira Karina Carrillo Mora ◽  
Sofía Nathaly Cely Jadan ◽  
Marisa Arcos
Keyword(s):  
Folic Acid ◽  
Macular Degeneration ◽  
Health Personnel ◽  
Age Related Macular Degeneration ◽  
World Health ◽  
Central Vision ◽  
Age Related ◽  
The World ◽  
Prevention And Treatment ◽  
Health Organization

Age-related macular degeneration is one of the diseases that affect the macula in people over 50 years of age, due to the existence of different multifactorial neurodegenerative changes that can lead to the loss of central vision. According to the World Health Organization there is a prevalence of 4 % worldwide; it is related of 7 % of the blindness and 3 %; Clinically it is manifested by two forms, the atrophic or dry and the exudative or wet. It has been shown that foods rich in antioxidants, folic acid and zinc help reduce this disease in early stages. This review aims to update health personnel about the prevention and treatment of age-related macular degeneration.

scholarly journals A New EYENET Model for Diagnosis of Age-Related Macular Degeneration

Ophthalmology ◽  
2018 ◽  
pp. 153-171
Author(s):  
Priya Kandan ◽  
P. Aruna
Keyword(s):  
Macular Degeneration ◽  
Experimental Results ◽  
Age Related Macular Degeneration ◽  
Disease Spread ◽  
Eye Disease ◽  
Fundus Images ◽  
Central Vision ◽  
Age Related

Age-related macular degeneration is an eye disease, that gradually degrades the macula, a part of the retina, which is responsible for central vision. It occurs in one of the two types, DRY and WET age-related macular degeneration. In this chapter, to diagnose Age-related macular degeneration, the authors have proposed a new EYENET model which was obtained by combining the modified PNN and modified RBFNN and hence it poses the advantages of both the models. The amount of the disease spread in the retina can be identified by extracting the features of the retina. A total of 250 fundus images were used, out of which 150 were used for training and 100 images were used for testing. Experimental results show that PNN has an accuracy of 87%, modified PNN has an accuracy of 90% RBFNN has an accuracy of 80%, modified RBFNN has an accuracy of 85% and the proposed EYENET Model has an accuracy of 94%. This infers that the proposed EYENET model outperforms all other models.

scholarly journals Saccadic adaptation in the presence of artificial central scotomas

2019 ◽  
Author(s):  
Youngmin Song ◽  
Lydia Ouchene ◽  
Aarlenne Z. Khan
Keyword(s):  
Macular Degeneration ◽  
Visual Function ◽  
Age Related Macular Degeneration ◽  
Saccade Target ◽  
Central Vision ◽  
Double Step ◽  
Saccadic Adaptation ◽  
Age Related ◽  
Short Period ◽  
Saccade Adaptation

AbstractSaccadic adaptation can occur over a short period of time through a constant adjustment of the saccade target during the saccade, resulting in saccadic re-referencing which directs the saccade to a location different from the target that elicited the saccade. Saccade re-referencing could be used to help patients with age-related macular degeneration (AMD) to optimally use their residual visual function. However, it remains unknown whether saccade adaptation can take place in the presence of central scotomas (i.e., without central vision).We tested participants in two experiments in a conventional double-step paradigm with a central gaze-contingent artificial scotoma. Experiment 1 (N = 12) comprised a backward adaptation paradigm with a visible and an invisible 3° diameter scotomas. Experiment 2 (N = 13) comprised a forward adaptation paradigm with invisible 2° and 4° diameter scotomas.In Experiment 1, we observed significant adaptation in both the visible and invisible scotoma conditions comparable to the control condition with no scotoma. This was the case even when the saccade landed such that the target was occluded by the scotoma. We observed that adaptation occurred based on peripheral viewing of the stepped target during the deceleration period.In Experiment 2, we found that both scotoma conditions showed adaptation again comparable to the control condition with no scotoma. We conclude that saccadic adaptation can occur with central scotomas, showing that it does not require central vision and is driven primarily by peripheral retinal error.

A New EYENET Model for Diagnosis of Age-Related Macular Degeneration

2016 ◽  
pp. 422-440
Author(s):  
Priya Kandan ◽  
P. Aruna
Keyword(s):  
Macular Degeneration ◽  
Experimental Results ◽  
Age Related Macular Degeneration ◽  
Disease Spread ◽  
Eye Disease ◽  
Fundus Images ◽  
Central Vision ◽  
Age Related

Age-related macular degeneration is an eye disease, that gradually degrades the macula, a part of the retina, which is responsible for central vision. It occurs in one of the two types, DRY and WET age-related macular degeneration. In this chapter, to diagnose Age-related macular degeneration, the authors have proposed a new EYENET model which was obtained by combining the modified PNN and modified RBFNN and hence it poses the advantages of both the models. The amount of the disease spread in the retina can be identified by extracting the features of the retina. A total of 250 fundus images were used, out of which 150 were used for training and 100 images were used for testing. Experimental results show that PNN has an accuracy of 87%, modified PNN has an accuracy of 90% RBFNN has an accuracy of 80%, modified RBFNN has an accuracy of 85% and the proposed EYENET Model has an accuracy of 94%. This infers that the proposed EYENET model outperforms all other models.

Sign in / Sign up

Export Citation Format

Share Document