Request a Quote
x
English Arabic French Russian

How to Detect Astigmatism?

 

Astigmatism is caused by distortion in the shape of the cornea. It is a refractive error characterized by an alteration in the curvature of the cornea, due to which the light is not able to focus on the retina. This causes distorted or blurred vision. Astigmatism can either congenital or acquired. It is usually associated with myopia or hypermetropia.

astigmatism

 

Signs and symptoms

 

Following signs can be noticed if you have astigmatism.

  • Headache

  • Night vision

  • Squinting

  • Strain in the eyes

  • Blurred or distorted vision

 

Types of astigmatism

 

  • Myopic astigmatism - When one of both principal meridians of the eye is nearsighted.

  • Hyperopic astigmatism - When one or both principal meridians are farsighted.

  • Mixed astigmatism - When one of the principal meridians is nearsighted and the other is farsighted.


 

Causes

The prime feature of astigmatism is distortion in the curvature of the eye. This is congenital in most of the cases. However, in some cases, this can happen after an injury or surgery, or any eye related disorder.

 

How is it diagnosed?

 

The condition of astigmatism is diagnosed through an eye exam. There are a series of tests to examine and analyze the ophthalmic health and refraction. This determines the way in which the light bends in the eye. Different instruments are used to enable the light to get focussed directly at the eyes.

Most of the top ophthalmologists in India prefer to do a test called Manual refraction. An instrument known as phoropter is placed in front of the eyes. This instrument contains several lenses that are placed in front of the one by one to make the comparison.

 

astigmatism

 

How is it treated?

 

Two types of approaches are used for the treatment:

  • Corrective lenses

  • Refractive surgery

 

Corrective Lenses

  1. Eyeglasses - These are made with lenses to compensate for the distorted shape of the eye. The eyeglass lenses are able to make the light bend on the retinal at a proper position. The eyeglasses are also used for the correction of other refractive errors like nearsightedness or farsightedness.

  2. Contact lenses - These are similar to the eyeglasses. These have the ability to correct astigmatism. These may be disposable soft, extended wear, rigid, gas permeable or bifocal. However, wearing contact lenses for an extended period of time can lead to increased risk of infection.

 

Refractive surgeries

 

This is done to improve the vision and reduce the need for eyeglasses or contact lenses. A laser beam is used to reshape the curves of the cornea. Following are the types of refractive surgery, which are most commonly done by the doctors. These include:

 

Laser-assisted in-situ keratomileusis (LASIK) - A thin flap is made in the cornea and makes the shape correction by using a laser machine. After the completion, the flap is repositioned.

Laser-assisted subepithelial keratectomy (LASEK) - In this type of procedure, the protective cover is loosened with the help of a special type of alcohol. Then, the curvature of the distorted cornea is changed followed by repositioning of the loosened epithelium.

Photorefractive Keratectomy (PRK) - This is another procedure similar to LASEK. However, this involves the removal of the epithelium. After completion of the surgery, it grows back naturally by adapting to the new shape of the cornea.

Epi-LASIK - Here, a special mechanized blunt blade is used to isolate a thin sheet of the epithelium. Then an excimer laser is used to reshape the cornea and reposition the epithelium.

 

To read about the best eye hospitals in India, click here.

Share Articles

Need Help?

Just let us know. We will be happy to assist you


After submitting the form, check your email for instructions to share patient information and medical reports.

 

 

 

About Vaidam

Patients from 60+ countries have trusted Vaidam

 

Why Vaidam

 

NABH Certified Healthcare Discovery Platform

Vaidam is NABH certified healthcare discovery platform that will connect you to top-notch medical experts, hospitals, wellness options, and trusted travel partners in India to help identify and make the right healthcare choices.

Researched & Personalized Treatment Plan - Under One Roof

You can search for the best hospitals in India to treat cancer and ailments of the heart, bones or kidney, read about them, view photographs of the facilities at the hospitals and the places at which the hospitals are located, and check the cost of treatment.

Quality Treatment Within Your Budget

As soon as you post an enquiry, the patient relation team will collect details from you, share them with the doctors and hospitals on Vaidam's panel, and get a personalized treatment plan. We research to get quality treatment within your budget.

Treatment to Travel

Vaidam concierge assists patients, to get medical Visa to travel to India, the best airline fares and arrangements for your stay. Our concierge also helps you with daily travel, language, and food concerns. Vaidam does everything to be your perfect host in India. All of Vaidam’s services are free of cost to patients.

Pan-India Reach

If you are looking for medical care in New Delhi, Mumbai, Chennai, Hyderabad or Ahmedabad, Vaidam Health has a network in each of those cities.

 
Vaidam News

 

Vaidam Health gets the prestigious NABH accreditation

Vaidam Health gets the prestigious NABH accreditation

Read more


Vaidam Media - Medical Travel Today

Vaidam Health Coverage by Medical Travel Today - The Authoritative Newsletter for Medical Tourism

Read more


Vaidam Health YourStory News

Vaidam Health gets covered by 'Your Story', India's Leading Online Magazine

Read more


Know how it works in less than 90 secs


View More Updates


 

 

 

Note: Vaidam Health does not provide medical advice, diagnosis or treatment. The services and information offered on www.vaidam.com are intended solely for informational purposes and cannot replace the professional consultation or treatment by a physician. Vaidam Health discourages copying, cloning of its webpages and its content and it will follow the legal procedures to protect its intellectual property

 

Browse the website in:   English     Français   Русский     العَرَبِية

 

 

Thank you. We will contact you soon.

x