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Read our latest news from the ASG ophthalmology news. Feel free to ask questions in comments for any news you find interesting.
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12/Nov/2021

What is Contoura Vision?

Contoura Vision TopoGuided LASIK is a new technology designed to enhance the effects of LASIK. It corrects the vision based on the corneal topography (corneal curvature maps) as against the correction of vision in a standard LASIK surgery which is only based on glasses or contact lens prescription.
Contoura Vision TopoGuided LASIK involves the use of a separate diagnostic device called topolyser which provides measurement of 22,000 points on the cornea capturing the imperfections in both the curvature and the optics of the cornea. These topographic measurements are then combined with the patient’s eyeglass prescription and a customized treatment profile is created and programmed into the state of the art laser. The final laser ablation is performed by the WaveLight EX 500 Excimer laser system. Thus this technology works to optimize the corneal surface during LASIK procedure.

What makes Contoura Vision so unique?

The Topolyser has unparalleled diagnostic capabilities to record even the minutest imperfections in the curvature of the cornea. It provides an incredible measurement of 22,000 points as compared to the currently available wave front-guided LASIK that measures around 200 points. The topography measurements are so accurate that it is impossible for any two treatments to be the same. Hence this technology is remarkable as it corrects the refractive errors with higher precision than ever before.

How does it help?

Since Contoura Vision combines refractive prescription with corneal topography maps it provides improved quality of vision to the patients. Food and Drug Administration (FDA) results reveal that the patients who opted for this technology had a significant improvement and were able to see even more clearly without corrective eyewear. As per the clinical trials statistics, almost 99% of patients post-operatively saw as well or better without glasses than they ever did with glasses.

  • Specifically suitable for patients with Astigmatism > 1D
  • Decrease in difficulty during night driving
  • Lesser sensitivity towards light, less glare
  • Better quality of vision

How is it done?

  • Preparation
  • During Treatment
  • Post Treatment

A complete preoperative screening is done by clinical examination and corneal topography (Pentacam) to assess the eligibility and safety of LASIK procedure for the patient.

What are the benefits of this technology?

Contoura Vision technology is a boon for patients suffering from different refractive errors. It has many benefits, but a few risks too.

Benefits

  • Reduced or absent dependence on glasses
  • Decrease in difficulty during night driving
  • Lesser sensitivity towards light, less glare
  • Better quality of vision

Let’s find out by comparing every significant aspect of a laser vision correction procedure.

For the best Contoura Vision Treatment, you can contact ASG Eye Hospital.

150+* Eye Specialists of All Sub Specialties of Ophthalmology out of which 50+* Trained from AIIMS, New Delhi I Presence over 31+* Cities across India I 38+* Super specialty Eye Hospital’s

www.asgeyehospital.com, Call – 18001200111 & 8875020326 & 7849903663


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30/Sep/2021

Glaucoma is the main source of permanent visual blindness around the world, and the second leading cause for permanent visual blindness in India. Almost three million individuals in India have glaucoma, and the number is expected to increase to 6.3 million in the following 30 years. In spite of the fact that glaucoma is more common in adults ageing 60 and above, it can happen at any stage in life. At present there is no definite cure for glaucoma, vision loss can be slowed down or stopped if the disease is diagnosed timely and treated early.

What is Glaucoma?

Glaucoma is a group of disorders that harm the optic nerve of the eye, which conveys visual signs from the retina to the cerebrum, permitting us to see. In glaucoma, the optic nerve is gradually impaired, causing progressive loss of vision and eventually permanent vision loss. Since the damage happens gradually it usually goes unrecognised until it is too late. As it advances, glaucoma can prompt to decreased quality of life, trouble with driving, increased risks of falls and diminished mobility.

Glaucoma is often linked to increased pressure in the eye. Healthy eyes produce a fluid known as aqueous, which courses through and exits the eye. In glaucoma, this cycle is disrupted, bringing about increased pressure in the eye which in turn causes harm to the optic nerve. The two main varieties of glaucoma — open-angle glaucoma and angle closure glaucoma — are determined by the structure of the drainage pathway in the front of the eye (known as the angle), through which aqueous fluid outflows.

In open-angle glaucoma, the angle seems open, however various elements — including drainage issues —results in poor pressure regulation. In this type of glaucoma optic nerve damage can happen at both high and normal eye pressures (normal tension glaucoma). Both subtypes can lead in vision loss and optic nerve damage.

In angle-closure glaucoma the angle is narrow, and the subsequent underlying issues can cause an abrupt closure of the drainage pathway, leading to high eye pressures. This condition is known as acute angle closure. Although uncommon, acute angle-closure glaucoma is an ophthalmological emergency, and requires immediate treatment with proper medication, laser, or surgery, as it can cause higher amount of optic nerve damage and can cause irreversible vision loss. Angle-closure glaucoma also exists in a chronic form where the increase in eye pressure occurs more slowly, often without symptoms, but still requires evaluation and treatment.

Who is at Risk of Developing Glaucoma?

Glaucoma is a perplexing disease, and while many associated genes have been identified, many underlying causes are still unclear.

However, a number of important risk factors have been identified, which include

  • Age older than 60
  • A first-degree relative with glaucoma
  • East and Southeast Asian descent (for angle-closure glaucoma)
  • History of eye trauma or multiple eye surgeries
  • Chronic eye conditions, such as diabetic eye disease
  • Highly near-sighted or far-sightedness •Use of steroid medications

What are the Symptoms of Glaucoma?

The population with glaucoma, especially those with open-angle glaucoma or normal-tension glaucoma, may have no or very minimal symptoms for quite a long time. It is shocking but half of the expected glaucoma cases are undiscovered, hence underlining the requirement for regular eye checkups, starting at age 40. An eye care professional will be able to detect the signs of glaucoma before you can, and timely medication and treatment is critical to forestall the disease from spreading and to prevent permanent vision loss.

Early indications of glaucoma incorporates trouble with low contrast, and some deficiency of fringe vision. In further developed stages, patients foster loss of their visual field, or blind spots, that at last lead to focal vision loss.

Acute angle-closure glaucoma causes symptoms of pain, blurred vision, and nausea, and is a medical emergency.

What Treatment Alternatives are Accessible?

In spite of the fact that there is as of now no permanent remedy for glaucoma, treatment can help slow or stop the speed of vision loss. Depending upon many elements, including your age and the sort and seriousness of your glaucoma, treatment may include medications and/or surgery directed at lowering eye pressure.

Medications include pressure-lowering eye drops that work to increase fluid drainage or decrease fluid production. Laser can also be used to increase drainage (in the angle) or to make an opening in the iris in case of angleclosure glaucoma. Various surgical techniques may be used to create an alternate fluid outflow pathway in the eye, so-called filtering surgery and tube-shunt surgery. Recent surgical innovations called minimally invasive glaucoma surgery, or MIGS, help in fluid drainage using microscopic-sized implants in the eye.

The future of Glaucoma Care

Researches in glaucoma are mostly focused on working on the reasons for the disease development and progression and foster more designated and customised medicines. There are various other subtypes of glaucoma, apart from the types portrayed here, that many believe will benefit from various medicines. Later on, hereditary testing might assume a part in assessing individual susceptibility for inheriting glaucoma over the long haul. Additionally, newer treatments to stop loss of nerve cells (of the retina and optic nerve), called neuroprotection, show guarantee. Analysts are now concentrating on new medications, drug conveyance frameworks, and advancements to make medical procedures more protected and compelling.

Early Discovery is Vital

In case you are stressed over glaucoma, and particularly if you have a family history of it then the best approach is to visit your eye specialist regularly. Every adult should have a standard eye examination at age 40, regardless of whether your vision is normal. Vision loss from glaucoma can be minimised with treatment, so early diagnosis and treatment of this disease is vital.

For the best Glaucoma Treatment, you can contact ASG Eye Hospital.

150+* Eye Specialists of All Sub Specialties of Ophthalmology out of which 50+* Trained from AIIMS, New Delhi I Presence over 31+* Cities across India I 38+* Super specialty Eye Hospital’s

www.asgeyehospital.com, Call – 18001200111


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30/Sep/2021

It is estimated that more than 30 million individuals in the India live with diabetes, and roughly 7.7 million of them have diabetic retinopathy, making it the most widely recognised reason for vision impairment in adults. The predominance of diabetic retinopathy has expanded essentially in the course of recent years, because of the ascent in the quantity of individuals determined to have diabetes.

How does Diabetes Influence the Retina?

The retina is the light-detecting part situated in rear of the eye. It consists of nerve cells (neurons), specific cells called photo receptors that are associated with directly detecting light and blood vessels. The ability of retina to detect the light requires energy, which is subject to the oxygen provided by blood flowing through the vessels.

In diabetes, increased glucose levels harm the vessels of the retina. These harmed vessels release fluid, leak blood and don’t provide sufficient oxygen to the retina, prompting retinal ischemia. Subsequently, retinal cells start to die and the retina doesn’t work as expected.

Moreover, diabetes additionally harms the neuron of the retina directly. Together, these impacts cause diabetic retinopathy.

Vision impairment related with diabetic retinopathy may at first influence focal vision because of a condition called diabetic macular edema. This fluid collection on the macula, a part of the retina responsible for sharp, focal vision, can prompt foggy vision and contortion of pictures.

Progressed diabetic retinopathy is described by the arrangement of sporadic vessels that can bleed inside the eye, causing a sudden loss of vision. This results in an abrupt, drape like vision impairment as blood collects within the eye. Further deterioration of advance diabetic retinopathy can prompt retinal detachment, which requires critical careful mediation and can bring about long-lasting, irreversible vision impairment if not expeditiously treated.

How Can You Forestall Diabetic Retinopathy?

The Indian Diabetes Association suggests that people with diabetes should keep their HbA1c level (a proportion of normal glucose levels over the past few months) beneath 7% to forestall the danger of complexities. As blood glucose straight forwardly harms retinal vessels, there is a solid epidemiological proof that glucose control means diminished occurrence and seriousness of diabetic retinopathy.

To lessen the cardiovascular and microvascular complications of diabetes, which incorporate retinopathy, nephropathy (kidney disease), and neuropathy (nerve damage), it is suggested that individuals should maintain a normal blood pressure. Pulse decrease can defer the beginning of diabetic retinopathy, yet it is unclear if controlling blood pressure can modify the direction of set up of diabetic retinopathy. Also, keeping the cholesterol-controlled helps in overall diabetes management, yet it isn’t evident whether doing so diminishes the danger of diabetic retinopathy.

How Can I Figure Out If I Have Diabetic Retinopathy?

An ophthalmologist can analyse and start to treat diabetic retinopathy before sight is affected. It is recommended that individuals with type 1 diabetes should see an ophthalmologist one time per year, starting five years after the diagnosis of diabetes. Individuals with type 2 diabetes should see an ophthalmologist for a retinal assessment before as early as possible after the diagnosis of diabetes, and afterward plan yearly tests. You might have to see an ophthalmologist all the more as often as possible in case you are pregnant or have further developed diabetic retinopathy.

What can I Do to Prevent or Slow Down Vision Loss if I have Diabetic Retinopathy?

As referenced above, harm to the vessels deprives the retina of oxygen. Deficiency of oxygen leads to creation of a signal protein called vascular endothelial growth factor (VEGF). Right now, there are medications that can bind VEGF and accordingly work on preventing the harmful effects of VEGF causing diabetic retinopathy. These “anti-VEGF” specialists are infused straightforwardly into the eye and can improve diabetic macular edema, and can even decrease the seriousness of diabetic retinopathy. In certain individuals, steroids infused straightforwardly into the eye may likewise improve diabetic macular edema. In some high-level instances of proliferative diabetic retinopathy (the most progressive type of diabetic retinopathy), patients might require retinal laser treatment or retinal medical procedure to stop or slow bleeding and spillage, to recoil harmed vessels and to eliminate blood and scar tissue helping in vision restoration.

Regular eye check ups and strict blood sugar level control are monumental in preventing the development and progression of diabetic retinopathy.

For the best Diabetic Retinopathy Hospital in India, you can contact ASG Eye Hospital.

150+* Eye Specialists of All Sub Specialties of Ophthalmology out of which 50+* Trained from AIIMS, New Delhi I Presence over 31+* Cities across India I 38+* Super specialty Eye Hospital’s

www.asgeyehospital.com, Call – 18001200111


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