How is Astigmatism Diagnosed?

Astigmatism is diagnosed by an optometrist or ophthalmologist through a complete eye examination. The examination includes a refraction test to determine how light is focused by the eye and identify any errors in vision.

During refraction, the eye specialist may ask you to look through different lenses and indicate which one gives clearer vision. This process helps find out the exact spectacle or contact-lens prescription and identifies whether astigmatism is present alongside myopia (short-sightedness) or hyperopia (far-sightedness).

A keratometer may be used to measure the curvature of the cornea. Since astigmatism commonly results from an uneven corneal curve, these measurements help with both diagnosis and contact lens planning. Before laser eye surgery, a more detailed assessment is carried out to check whether your eyes are suitable for the procedure.

How is Astigmatism Treated Based on Severity?

Treatment for astigmatism differs depending on how much the condition affects daily vision and overall eye health. The following treatments are recommended based on the severity of astigmatism:

Severity Level Treatment Approach
Mild astigmatism with little or no discomfort Treatment may not be needed right away. Regular eye tests help monitor vision and determine whether correction is needed later.
Symptomatic astigmatism affecting reading, screen work, or driving Spectacles are usually the first-line correction. Lenses compensate for the uneven eye shape and help light focus properly.
Active individuals who prefer not to wear glasses Contact lenses may correct most astigmatism. They need good hygiene because poor or extended use can raise infection risk.
Stable prescription in suitable adults wanting less dependence on glasses Refractive surgery such as LASIK, LASEK, PRK, or SMILE may be considered after a full eye evaluation.
Astigmatism with other eye conditions or an unsuitable cornea Glasses or contact lenses may remain the safest option. The ophthalmologist may discuss other surgical choices only if they are safe for the specific eye condition.

Types of Astigmatism and Their Treatment

Astigmatism may be classified based on its origin and whether it occurs alongside other refractive errors. The following treatments may be recommended by doctors for astigmatism based on its type:

Type Treatment Approach
Corneal astigmatism Spectacles, contact lenses, or refractive surgery for suitable candidates
Lenticular astigmatism Spectacles or contact lenses to counteract the uneven curvature
Astigmatism with myopia or hyperopia A single combined prescription can correct both refractive errors together
Irregular astigmatism Specialist assessment needed. Standard spectacles may not provide the best correction; specialised contact lenses and an ophthalmologist review may be required

Your ophthalmologist will determine the type of astigmatism during the eye examination and recommend the most appropriate correction.

Corrective Lens Treatments for Astigmatism

Corrective lenses are the most common, non-invasive treatment option for astigmatism and are suitable for people of all ages. Some other treatments for astigmatism include:

  1. Spectacles Prescription spectacles compensate for the uneven shape of the cornea or lens so that light bends correctly into the eye. They can also correct short-sightedness or far-sightedness if present alongside astigmatism. Spectacles are simple, safe, and do not carry an infection risk.

  2. Contact Lenses Toric contact lenses are made to correct astigmatism. They are a good option if you are physically active or do not want to wear glasses. You can get daily or monthly disposable lenses. It is important to keep contact lenses clean and use them as advised. Not following hygiene or wearing them too long can cause eye infections.

  3. Orthokeratology Orthokeratology consists of wearing specially designed rigid gas-permeable contact lenses overnight while sleeping to temporarily reshape the cornea, allowing for clear vision during the day without glasses or contact lenses. Vision improves as long as the reshaping effect is maintained, but it returns to its original condition when the lenses are discontinued. In some individual cases, this method may be considered with an eye specialist.

Other Treatments for Astigmatism

Astigmatism may also be treated with refractive surgery for suitable adults who want to reduce their dependence on spectacles or contact lenses.

    1. LASIK LASIK (Laser-Assisted In Situ Keratomileusis) involves creating a thin hinged flap in the cornea, using an excimer laser to reshape the underlying tissue, and repositioning the flap. It may be considered for adults with a stable prescription and healthy eyes.

    2. PRK and LASEK PRK (Photorefractive Keratectomy) and LASEK are types of laser surgery to improve vision. They differ from LASIK in that the surface of the cornea is treated before the laser alters the cornea's shape; these procedures may be suggested when a surgeon believes a surface method is safer or more appropriate than one that involves creating a flap.

    3. SMILE SMILE (Small Incision Lenticule Extraction) is a relatively new refractive surgery that reshapes the cornea by creating a small lens-shaped piece of tissue below the corneal surface, which is then removed through a tiny incision.

    4. Lens Surgery Lens surgery may be used to correct astigmatism in certain cases, particularly when laser surgery is not suitable. In lens surgery, an artificial toric lens is either placed inside the eye alongside the natural lens (Phakic IOL/ICL) or replaces the eye's natural lens entirely (Refractive Lens Exchange) to correct higher degrees of astigmatism.

Note: Suitability of laser and lens surgery is determined after a detailed eye assessment, and patients should discuss possible risks and realistic outcomes with their surgeon.

Post‑Operative Eye Drops for Astigmatism Treatment

Certain eye drops may be prescribed as part of post-surgical care after astigmatism treatment, which include:

  • Antibiotic Eye Drops: May be prescribed after refractive surgery to reduce the risk of infection during healing.

  • Anti-inflammatory Eye Drops: May be used to control inflammation following eye procedures.

  • Lubricating Eye Drops: May help manage dry-eye symptoms that can occur after laser surgery.

These drops support healing and comfort after a procedure. They do not change eye power or correct astigmatism on their own.

Note: Take these medicines only as prescribed by a doctor.

Ayurvedic and Alternative Treatments for Astigmatism

Listed are some Ayurvedic and complementary treatment options for managing astigmatism:

  • Shiro abhyanga: A head massage therapy that may be used as part of Ayurvedic treatment.

  • Thalam: An Ayurvedic procedure involving the application of medicated oil on the head.

  • Tharpanam: A procedure in which medicated substances are applied around the eyes as part of specialised Ayurvedic eye care.

  • Sirodhara and Nasyam: Specialised Ayurvedic procedures that may be included in treatment plans for astigmatism.

Note: Consult a qualified AYUSH/Ayurvedic practitioner and your treating doctor before trying alternative treatments.

Home Care for Managing Astigmatism

Here are a few practical steps you can take alongside your prescribed correction to manage astigmatism:

  • Use spectacles or contact lenses as advised by your eye specialist to reduce blurred vision and strain.

  • Clean and store lenses as directed by your doctor.

  • Update your prescription when vision changes.

  • If you have had laser or lens surgery, report worsening pain, redness, or sudden vision changes to your surgeon immediately.

  • Use appropriate eyewear during activities that may cause eye injury.

Latest Treatment for Astigmatism in India

Recent advances in astigmatism treatment in India include next-generation SMILE laser technology using the VisuMax 800 platform, commonly known as SMILE Pro. This advanced laser procedure is used to correct myopia and myopic astigmatism, with features such as Centralign centration guidance and Oculign cyclotorsion control to improve the accuracy of treatment. Another newer flapless option is SILK (Smooth Incision Lenticule Keratomileusis), performed using the ELITA laser platform.

For suitable patients, other advanced options include customised laser procedures, such as topography-guided Contoura Vision and AI-assisted WaveLight Plus with InnovEyes, as well as toric implantable lenses. These include toric phakic ICLs for certain patients with high refractive errors and toric IOLs used during lens or cataract surgery. The choice depends on the type and severity of astigmatism, corneal condition and overall eye health.

How Long Does Astigmatism Treatment Take?

The duration of astigmatism treatment depends on the correction method chosen. The table below outlines how long each astigmatism treatment might take:

Treatment Type Approximate Duration
Eye test and prescription Usually completed in a single outpatient visit. Additional corneal measurements may extend the appointment.
Spectacles Vision correction begins immediately upon wearing the spectacles, though brain adaptation to a new cylinder prescription typically takes 2 to 14 days.
Contact lenses Benefits start when the lenses fit well and are used correctly. Ongoing follow-up is needed to monitor comfort and eye health.
Orthokeratology It takes 1 to 2 weeks of nightly wear to achieve maximum clear vision during the day. The temporary reshaping effect lasts 1–2 days and requires consistent overnight wear to maintain.
Refractive surgery (LASIK, SMILE, PRK) The surgery itself takes about 10–15 minutes per eye.

Visual recovery is rapid for LASIK and SMILE (24–48 hours), while PRK requires 3–7 days for initial surface healing and 1–3 months for full visual stabilisation. Follow-up care spans 3–6 months.

Spectacles and contact lenses provide ongoing correction as long as they are used, while successful refractive surgery results may be long-lasting.

Astigmatism Treatment Side Effects

In general, astigmatism treatments are safe, but each option has its own side effects:

  • Spectacles: Practically inconvenient if lost or broken, but they carry no medical side effects.

  • Contact Lenses: If not cleaned properly or worn for long periods, they can cause eye infections. If you develop pain, redness, or discharge, see a doctor immediately.

  • Laser Eye Surgery: Some people may experience dry eyes, glare, or less clear vision at night after surgery. Complications are rare but may occur.

  • Post-surgical Dryness: Dry eye symptoms after laser surgery may require lubricating eye drops for weeks to months.

Discussing possible side effects with your ophthalmologist before choosing a treatment helps set realistic expectations.

Lifestyle Changes for Managing Astigmatism

You can follow these simple steps along with your prescribed treatment:

  • Wear your glasses or contact lenses as your doctor advises. This helps reduce blurred vision and eye strain.

  • Pick the correction method that fits your daily routine. Glasses are simple and do not involve surgery. Contact lenses may work better for people who are physically active, but they need careful cleaning.

  • When working on a screen, use your prescribed correction rather than forcing yourself to see through blurred vision, since astigmatism correction helps light focus properly and improves your vision when reading, working, or driving.

  • Take regular breaks from screens to help reduce eye strain, especially during extended use of digital devices.

Triggers That Can Worsen Astigmatism Symptoms

The following factors can make astigmatism symptoms feel worse or more noticeable:

  • Uncorrected or outdated prescription: Wearing glasses or lenses with the wrong power can increase blurred vision and strain during reading, screen work and night driving

  • Poor contact lens hygiene: Failing to clean or replace lenses as directed can cause irritation or infection, worsening eye comfort

  • Dry eyes: Can affect visual comfort, particularly in people considering or recovering from laser eye surgery. Pre-existing dry eyes may also affect surgery suitability

  • Prolonged screen time without breaks: Can aggravate eye strain and headaches associated with astigmatism

Astigmatism Treatment Cost

Astigmatism treatment cost in India varies based on the type of correction chosen, the healthcare setting, and any additional diagnostic tests required. For people who use glasses, the cost will vary according to the type of frame and lenses they choose. Each time a prescription is updated, periodic eye examinations and refraction tests are necessary, which in turn increase the total cost.

For contact lens users, toric lenses designed for astigmatism are available at various price points. For reference, disposable toric lens boxes (6 lenses) are priced at around ₹1,000 to ₹3,500 per box.

Refractive surgery is a larger one-time expense. LASIK eye surgery costs in India are estimated at ₹40,000 to ₹1.3 lakh based on healthcare platform estimates. This range may vary depending on the specific procedure (LASIK, PRK, SMILE), hospital, surgeon experience, city and the technology used.

Does Health Insurance Cover Astigmatism Treatment in India?

Yes, health insurance may cover surgical correction of astigmatism if it is medically necessary. LASIK may be covered for refractive errors of 7.5 dioptres or above, or when the refractive error results from an injury or previous surgery, or you are physically unable to wear glasses or contact lenses. A waiting period may apply.

However, routine vision correction, including glasses and toric contact lenses, is generally not covered. Check your policy documents for coverage, waiting periods and applicable sub-limits.

FAQs

  • Q1. What is the main treatment for astigmatism?

    Ans: Spectacles and contact lenses are the main treatments for astigmatism. For suitable adults with a stable prescription, refractive surgery such as LASIK or SMILE may reduce the need for glasses.
  • Q2. Can mild astigmatism be left untreated?

    Ans: Yes. Mild astigmatism may not need treatment if it does not cause visual discomfort. Regular eye tests help monitor changes and decide if correction is needed later.
  • Q3. Are contact lenses safe for astigmatism?

    Ans: Yes, most astigmatism can be safely corrected with contact lenses. However, bad hygiene or prolonged use can increase the risk of eye infection. Use them only under the supervision of your eye specialist.
  • Q4. Can LASIK treat astigmatism?

    Ans: Yes. LASIK may treat astigmatism by reshaping the cornea with a laser. Suitability depends on eye health, prescription stability, and the surgeon's assessment.
  • Q5. What is SMILE surgery for astigmatism?

    Ans: SMILE (Small Incision Lenticule Extraction) is a newer type of refractive surgery that reshapes the cornea by removing a small, lens-shaped piece of tissue through a tiny incision, reducing dependence on spectacles.
  • Q6. Are there medicines to correct astigmatism?

    Ans: No. Astigmatism is a focusing error and not a condition that can be treated with medicines. Eye drops are frequently prescribed after surgery to help with healing, but they do not change eye power.
  • Q7. What side effects can occur after laser surgery for astigmatism?

    Ans: Laser surgery may cause dry eyes, glare, reduced night vision and vision changes. Proper suitability assessment and post-operative care help manage these effects.
  • Q8. How much does astigmatism treatment cost in India?

    Ans: It depends on the treatment. Toric contact lenses may cost around ₹1,000 to ₹3,500 for a 6-lens box. LASIK surgery may range from ₹40,000 to ₹1.3 lakh.
  • Q9. Does health insurance cover astigmatism treatment?

    Ans: Yes. Health insurance may cover surgical correction of astigmatism if it meets the policy’s medical necessity criteria. LASIK may be covered for refractive errors of 7.5 dioptres or above, subject to the policy terms. Glasses and contact lenses are generally not covered under standard health insurance.
  • References

    • https://www.nei.nih.gov/eye-health-information/eye-conditions-and-diseases/astigmatism

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