Refractive Surgeries

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refractive error

Refractive errors are indeed a leading cause of visual impairment, accounting for about 43% of cases globally. The good news is that these impairments are highly treatable, and advancements in vision correction have made a big difference in people’s quality of life.

A refractive error occurs when the eye is unable to properly focus light on the retina, leading to blurry vision. This happens when the shape of the eye, cornea, or lens prevents light from focusing correctly.

Drishti Center for Advanced Eye Care in Haldwani is an excellent choice for custom laser vision correction! With a team of experienced and world-renowned surgeons, advanced diagnostic equipment, and a state-of-the-art OT complex, they seem to offer a comprehensive, top-quality approach to vision correction.

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Refractive errors

Refractive errors occur when the eye is unable to properly focus light on the retina, leading to blurry vision. The main types of refractive errors are:

Myopia (Nearsightedness)

The eye is too long or the cornea is too curved, causing distant objects to appear blurry while close objects are seen clearly.

Hyperopia (Farsightedness)

The eye is too short or the cornea is too flat, making nearby objects appear blurry, while distant objects may be seen more clearly.

Astigmatism

The cornea or lens has an irregular shape, causing light to focus on multiple points in the retina, leading to blurry or distorted vision at all distances.

Presbyopia

An age-related condition where the lens of the eye becomes less flexible, making it harder to focus on close objects, typically starting around age 40.

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Get in touch with us to know which Cataract procedure is best for your eyes

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They are your eyes – they deserve special treatment

Lets understand if Laser Vision Correction is right for you and if you are suitable. Your eligibility for undergoing Refractive surgery will depend on the amount and type of refractive error you have, your corneal thickness and curvature. You must be 18 years or older, must have healthy eyes, not suffering from dry eyes, your eye power must be stable for atleast 6 months before surgery and you must not be pregnant or breastfeeding. Do not forget to mention any other medical conditions you have, or any medications you might be taking.

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Refractive treatment options

LASIK (Laser-Assisted in Situ Keratomileusis)

LASIK (Laser-Assisted in Situ Keratomileusis) is a popular eye surgery technique used to correct refractive vision errors like nearsightedness (myopia), farsightedness (hyperopia), and astigmatism. The procedure involves reshaping the cornea to improve how light enters the eye and focuses on the retina.

LASIK Technique Overview:

Flap creation: A thin flap is created in the outer layer of the cornea using a microkeratome (blade) or femtosecond laser.
Corneal reshaping: The underlying corneal tissue is then reshaped using an excimer laser to correct the refractive error. This is done by removing precise amounts of tissue to adjust the curvature.
Flap repositioning: After reshaping, the corneal flap is placed back in its original position where it naturally adheres without the need for stitches.

Key Advantages:

Minimal discomfort: The procedure is relatively painless, with most patients experiencing only mild discomfort afterward.
Quick recovery: Vision often improves within 24 to 48 hours.
High success rate: LASIK provides effective, long-lasting results for many people, reducing or eliminating the need for glasses or contacts.

Trans PRK (Trans epithelial Photorefractive Keratectomy)

Trans PRK (Trans epithelial Photorefractive Keratectomy) is a type of laser eye surgery used to correct refractive errors such as nearsightedness (myopia), farsightedness (hyperopia), and astigmatism. It is a surface-based technique, meaning no corneal flap is created, unlike in LASIK.

How Trans PRK Works:

Surface Treatment: The procedure starts by gently removing the thin outer layer of the cornea (epithelium) using a laser.
Corneal Reshaping: The excimer laser then reshapes the corneal tissue beneath the epithelium to correct the refractive error.
Healing: The epithelium naturally regenerates over the course of a few days after the procedure.

Benefits:

No flap creation: Because it’s a surface treatment, there’s no risk of flap-related complications (unlike LASIK).
Ideal for thinner corneas: Trans PRK is a good option for patients with corneas too thin for LASIK.
Minimal invasiveness: It’s a simple, effective procedure for vision correction without the need for corneal incisions.

Recovery:

Longer healing time: The recovery period may be longer compared to LASIK, as the epithelium needs to regenerate.
Postoperative care: Patients may experience some discomfort for a few days, but this improves as the cornea heals.

ICL (Implantable Collamer Lens)

ICL (Implantable Collamer Lens) surgery is a procedure used to correct refractive errors like nearsightedness (myopia), farsightedness (hyperopia), and astigmatism. It involves implanting a synthetic lens into the eye, behind the iris and in front of the natural lens, to improve vision.

Key Points:

Procedure: A small incision is made in the eye, and the lens is inserted without removing the natural lens.
Ideal for: People who are not candidates for LASIK due to thin corneas, high refractive errors, or dry eye issues.
Benefits: Provides high-quality vision correction with minimal risk, and the lens is removable if necessary.
Recovery: Quick recovery with minimal discomfort, though follow-up visits are essential for monitoring.

ICL is a great option for individuals looking for permanent vision correction without the need for glasses or contact lens.

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Refractive Consultation Chart flow

The Refractive Consultation process for patients seeking vision correction, such as LASIK, Trans PRK, or other procedures, typically involves several key steps to assess the patient’s eye health and determine the most appropriate treatment. Here’s an outline of the typical patient process flow:

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Refractive errors

Their focus on a detailed preoperative assessment ensures that each patient’s unique needs are carefully considered, and their meticulous postoperative care shows a commitment to long-term patient health and satisfaction.

The fact that Drishti has over 10 years of experience in managing complex, irregular corneas, and complicated cases further highlights their expertise and reliability.

If you’re looking for a trusted center for laser eye surgery, Drishti’s combination of cutting-edge technology and years of experience makes them a great option. Have you been considering laser vision correction for yourself or someone you know?

Drishti Center For Advanced Eye Care, Haldwani offers various modern approaches to corrective eye surgery that range from LASIK, ICL and Trans PRK, where laser energies are used to reshape the curvature of the cornea, to surgical insertion of artificial lenses to correct eyesight.