Compare Refractive Eye Surgeries: Which Vision Correction Procedure Is Right for You?

There are several advanced refractive surgeries available, tailored to address specific visual needs and conditions, as well as individual lifestyles and personal preferences. The most popular ones are WaveLight Plus InnovEyes, SILK, SMILE, SMILE Pro, Contoura Vision, standard LASIK, TransPRK, and CustomEyes.

Each procedure offers distinct advantages based on its surgical mechanism, degree of personalization, and recovery profile. This means finding the right refractive surgery begins with identifying a patient’s individual needs and visual goals.

The evolution of refractive surgery began in 1948 when Father Wacław Szuniewicz performed the earliest documented corneal reshaping for astigmatism.

In 1964, Dr. José Ignacio Barraquer introduced keratomileusis and invented the microkeratome, establishing the basis for future procedures such as PRK and LASIK. Radial keratotomy (RK) gained popularity in the 1970s but was later discontinued due to its long-term refractive instability.

The 1980s marked the development of PRK with the advent of the excimer laser, followed by the FDA approval of LASIK in the 1990s, which enabled faster recovery through corneal flap creation.

By the 2000s, innovations such as topography-guided LASIK and SMILE introduced greater precision and structural preservation.

Recent advancements, including WaveLight Plus InnovEyes, CustomEyes, SMILE Pro, and SILK, represent a paradigm shift toward fully personalized, data-driven, and minimally invasive refractive solutions. These innovations are designed to enhance accuracy, safety, and long-term visual outcomes across a wide range of refractive conditions.

This article lists multiple modern refractive procedures, including WaveLight Plus InnovEyes, SMILE, SMILE Pro, SILK, Contoura Vision, LASIK, Trans-epithelial PRK, and CustomEyes, along with their mechanisms, advantages, and ideal candidates, as well as a comparison chart. It helps readers identify the best refractive surgeries for any individual, considerations before selecting a procedure, and the top advanced hospitals for these surgeries.

This think-piece aims to provide clear and accessible information about each modern refractive surgery technique to help readers make an informed decision.

Comparison of WaveLight Plus InnovEyes vs SILK vs SMILE vs SMILE Pro vs Contoura Vision vs LASIK vs Trans-epithelial PRK vs CustomEyes

The comparison between WaveLight Plus InnovEyes, SILK, SMILE, SMILE Pro, Contoura Vision, LASIK, Trans-epithelial PRK, and CustomEyes is presented in the table below, with respect to flap creation, popularity, ideal patient suitability, recovery speed, risk of dry eyes, and FDA approval status:

Procedure	Flap Creation	Popular For	Ideal Patient	Recovery Speed	Dry Eye Risks	FDA Approval
WaveLight Plus InnovEyes	Both flap and flapless are available	AI-personalised, eye-tracking precision	High-performance users, custom cases	Fast (1-2 days)	Moderate	Yes
SILK	No	No-touch, smooth stromal interface	Precision-critical users, sports professionals	Fast (1-2 days)	Low to Moderate	No
SMILE	No	Small incision, minimal disruption	General myopia/astigmatism patients	Moderate (2-3 days)	Low to Moderate	Yes
SMILE Pro	No	Faster scan speed, ergonomic improvements	High prescriptions, fast recovery	Moderate (2-3 days)	Low to Moderate	Yes
Contoura Vision	Yes	Topography-guided ablation	Irregular cornea topography	Fast (1-2 days)	Low to Moderate	Yes
LASIK	Yes	Quick, proven, widely available	Common refractive error correction	Fast (1-2 days)	High	Yes
TransPRK	No	Surface-based, preserves corneal tissue	Thin corneas, patients with military or athletic goals	Slow (3-7 days)	Low	Yes
CustomEyes	No	Fully individualised treatment	Ultra-personalised visual correction	Fast (1-2) days	Low to Moderate	Only in the US

Overview of Each Refractive Surgery Technique

Each refractive surgery procedure, including WaveLight Plus InnovEyes, SILK, SMILE, SMILE Pro, Contoura Vision, LASIK, Trans-epithelial PRK, and CustomEyes, is described in detail below, along with its procedural mechanism, distinct clinical advantages, and ideal patient profiles.

WaveLight Plus InnovEyes

WaveLight Plus InnovEyes (also called InnovEyes) is a next-generation refractive correction surgery developed by Alcon. It is a type of LASIK that utilises AI-based planning and advanced full-eye ray-tracing diagnostics to create highly individualised treatments.

Unlike traditional LASIK procedures that focus on the shape of the cornea, InnovEyes builds a comprehensive, digital model of the eye (also called “EyeVatar”). This ensures customised correction across the entire visual pathway of the eye, not just the surface, offering improved results and reduced side effects.

How it Works

The WaveLight Plus InnovEyes procedure begins with multimodal imaging, utilising integrated technologies such as Scheimpflug tomography, wavefront sensing, and optical biometry. It captures over 30,000 data points on the cornea, lens, retina, and internal aberrations.

Using this data, InnovEyes creates the EyeVatar to simulate how light travels through the eye, identifying and mapping the most subtle distortions. The system guides AI-based ray tracing, which generates a precise excision plan that addresses both lower- and higher-order aberrations.

Then, the WaveLight EX500 excimer laser performs the surgery, offering high-speed, high-precision reshaping of the cornea.

Key Benefits

The most valued benefit of WaveLight Plus InnovEyes is its integration of artificial intelligence and biometric data to plan each procedure. Additional procedural benefits of WaveLight Plus InnovEyes are listed below:

• InnovEyes considers the entire optical axis to ensure correction for internal anomalies and lens alignment issues, ensuring high personalisation.
• WaveLight Plus InnovEyes noticeably reduces night vision disturbances such as halos or glare.
• Patients undergoing this surgery attain visual acuity of 6/6 or better, including 6/5 or 6/4, which is also known as “Eagle Vision.”
• The procedure is super fast, taking less than 15 seconds per eye.
• Most patients notice visual improvement within 24 hours of the surgery and heal rapidly in the following days.
• The ray-tracing model of the procedure identifies distortions at multiple depths in the eye, treating complex visual imperfections that standard LASIK may miss.

Who is it Best Suited For?

WaveLight Plus InnovEyes is best suited for patients who are:

• Eligible for LASIK but desire a higher level of customisation and long-term clarity.
• Affected by complex refractive errors, including astigmatism or higher-order aberrations, that are not fully addressed by traditional or topography-guided LASIK (like Contoura).
• Seeking the best possible visual outcomes, including individuals with active lifestyles, surgeons, athletes, pilots, designers, or anyone for whom visual precision is critical.
• Concerned about night vision quality, glare, or halos often associated with standard LASIK procedures.

SILK

SILK (Smooth Incision Lenticule Keratomileusis) is a fourth-generation, flapless refractive surgical procedure developed by Johnson & Johnson Vision. It corrects myopia and myopic astigmatism while preserving corneal integrity.

The process utilises the advanced Elita femtosecond laser, designed for creating ultra-smooth lenticules with high-speed scanning and low-energy pulses. This enhances the surgical precision and promotes faster healing.

How It Works

The SILK procedure begins by creating a refractive lenticule with exceptionally smooth edges inside the corneal stroma using the Elita femtosecond laser. The lenticule is removed through a 2-3 mm microincision without lifting a flap, preserving anterior corneal strength.

The process reshapes the curvature of the cornea to focus light correctly on the retina. It effectively corrects the refractive error while maintaining biomechanical stability.

Key Benefits

One of the primary advantages of SILK is its accelerated corneal recovery, achieved by eliminating the need for corneal flap creation during refractive correction. In addition to rapid healing, SILK offers the following clinical benefits to patients:

• The SILK procedure is performed entirely within the corneal stroma. It preserves the front layers of the eye, maintains long-term corneal strength, and reduces the likelihood of complications during the recovery process.
• The Elita laser system creates smooth cuts, making lenticule removal easier and offering clearer vision.
• Elita uses low-energy, high-frequency pulses to reduce the chances of impacting healthy tissues and causing inflammation.
• The process cuts fewer nerves and preserves the epithelial tissue. This further reduces the chances of post-operative eye dryness and inflammation compared to LASIK or PRK.
• Most patients regain functional vision within 24 to 48 hours after the procedure. The microincision heals naturally within a few days. Patients achieve complete clarity by the end of the first week.

Who is it Best Suited For?

SILK procedure is especially suited for patients who are:

• Seeking flap-free vision correction with minimal invasiveness and fast recovery.
• Concerned about dry eyes or were unsuitable for LASIK due to pre-existing dryness or nerve sensitivity.
• Active individuals or athletes exposed to risk of eye trauma, where flap dislocation (a risk with LASIK) must be avoided.
• Professionals in fields that require precision, such as pilots, surgeons, and photographers, where optical clarity and night vision disturbances are inconvenient.
• Eligible for SMILE or LASIK but want an advanced, smoother option.

SMILE

SMILE (Small Incision Lenticule Extraction), developed by ZEISS, is a third-generation, flapless laser vision correction procedure designed to treat myopia and myopic astigmatism.

It utilises the VisuMax femtosecond laser to create and remove a tiny lenticule within the corneal stroma through a microincision. This helps preserve the surface of the eye while maintaining greater corneal strength than LASIK.

This process bridges the gap between surface surgical techniques, such as PRK, and flap-based procedures, like LASIK.

How It Works

The SMILE procedure begins with the ZEISS VisuMax laser creating a lenticule within the corneal stroma using ultra-fast, precise pulses, which separate the tissue layers.

The surgeon creates a 2-4 mm microincision and gently removes the lenticule using blunt dissection techniques.

After removal, the cornea naturally reshapes the correct curvature. This further improves how light focuses on the retina while leaving the front corneal layers largely intact.

Key Benefits

SMILE’s leading benefit is its flapless approach, which makes it gentler on the eye and safer for active individuals. The following are some other key benefits:

• SMILE doesn’t create a corneal flap, reducing the chance of flap dislocation, wrinkles, and other related complications.
• SMILE severs fewer corneal nerves compared to LASIK, which results in significantly lower rates of postoperative dryness.
• The microincision accelerates the healing process, and vision improvement begins within 24-72 hours.
• It doesn’t affect the stronger front corneal layers, so the eye’s structural integrity remains stable.

Who is it Best Suited For?

SMILE offers significant advantages for those who are:

• Eligible for LASIK but prefer a flap-free alternative.
• Active or in contact sports, where flap-related trauma is a risk (e.g., martial artists, military personnel, athletes).
• Concerned about dry eyes and have existing symptoms or risk factors for dryness.
• Younger adults with stable myopic prescriptions and good corneal thickness.
• Interested in minimally invasive procedures with lower post-op discomfort and a rapid return to normal activities.

SMILE Pro

SMILE Pro, developed by ZEISS, is an advanced level of SMILE surgery designed to treat myopia and astigmatism through a flapless, lenticule extraction process.

The minimally invasive refractive surgery utilizes the next-generation VisuMax 800 femtosecond laser, which significantly reduces laser time.

The technique offers faster laser speed and centration accuracy, ensuring a more comfortable experience for patients.

How It Works

SMILE Pro uses the advanced VisuMax 800 laser to create a lenticule in just 7-10 seconds (nearly half the time of earlier devices, like the VisuMax 500).  

The system automatically aligns the laser to the visual axis and adjusts for subtle eye rotations (cyclotorsion). It ensures better precision in lenticule creation, which is important for patients with astigmatism.

After creating the lenticule, the surgeon removes it through a 2-3 mm incision. The advanced laser interface ensures a cleaner cut, making dissection and removal smoother, resulting in greater patient comfort.

Key Benefits

The most significant advantage of SMILE Pro is its enhanced laser speed compared to standard SMILE, which contributes to shorter procedure time and improved patient comfort. Additional clinical benefits of SMILE Pro include:

• Reduced treatment time of SMILE Pro lowers stress on the eye, reduces patient fatigue, and minimises eye movement during the surgery. This improves overall accuracy and reduces the risk of inflammation.
• SMILE Pro, being minimally invasive, doesn’t involve flap creation, preserving corneal strength and reducing the risk of dry eye.
• SMILE Pro achieves better refractive precision for patients with complex astigmatic profiles using automated eye tracking and cyclotorsion alignment.
• Most patients experience sharper vision within 24 to 48 hours. Vision stabilises faster compared to conventional SMILE.
• Shorter suction time and ergonomic improvements enhance the experience, making it less intimidating for patients.

Who is it Best Suited For?

The SMILE Pro method is particularly beneficial for those who are:

• Eligible for SMILE or LASIK, but desire the latest, most efficient laser platform.
• Patients with astigmatism, where precision centration and torsional compensation can improve results.
• Nervous or time-sensitive individuals who need a shorter treatment duration and a more comfortable interface.
• Active professionals or athletes, looking for flap-free recovery with minimal downtime and biomechanical strength.
• Candidates who have already undergone prior refractive procedures.

Contoura Vision

Contoura Vision is a topography-guided LASIK procedure approved by the US FDA to treat myopia, astigmatism, and corneal surface irregularities.

It is the only LASIK platform approved to treat corneal irregularities as a primary concern beyond just nearsightedness, farsightedness, and astigmatism.

A clinical study shows that the treatment has helped 92.6% of patients achieve 20/20 vision or better. Additionally, 66.7% of the treated eyes achieved 20/16 vision, and 15.7% of the eyes achieved 20/10 vision.

How It Works

The Contoura Vision treatment begins by using the Topolyzer VARIO to measure over 22,000 elevation points on the cornea. It maps the eye’s curvature and microscopic irregularities.

Using the data, the surgeon employs planning software to generate a customized treatment plan. The plan includes both refractive error correction and topographic surface regularisation.

Next, a corneal flap is created using a femtosecond laser or microkeratome. The WaveLight excimer laser performs the ablation with real-time guidance from the topography map data. The flap is repositioned after the reshaping process is complete.

Key Benefits

Contoura Vision’s core benefit is its ability to correct both refractive errors and corneal irregularities, offering exceptionally personalised vision correction. Additional benefits are listed below:

• Each eye receives a unique correction profile based on its topographic data in Contoura Vision, ensuring highly personalised treatment.
• It offers sharper, clearer vision with better detail resolution, especially in low-light or at night.
• The treatment resolves surface irregularities, minimising common postoperative complaints, such as halo, glare, and night vision distortion.
• The ablation is more precise and refined, resulting in smoother recovery and fewer complications compared to older LASIK procedures.
• Patients experience significant visual improvement within 24-48 hours.

Who is it Best Suited For?

Contoura Vision is an excellent choice for patients who:

• Have mild to moderate myopia with or without astigmatism and a stable prescription.
• Are looking for more than standard LASIK, exceptional night vision, or relief from halos/glare with glasses or contacts.
• Have subtle corneal anomalies or asymmetry that traditional LASIK can’t fix.
• Seek “super vision”, such as high-definition clarity for professions requiring visual precision (e.g., pilots, surgeons, photographers).
• Are first-time refractive surgery candidates looking for the most advanced form of LASIK available.

LASIK

LASIK (Laser-Assisted In Situ Keratomileusis) is one of the most widely performed refractive surgeries globally. It reshapes the cornea to improve how light focuses on the retina.

The process is popular for effectively treating myopia (nearsightedness), hyperopia (farsightedness), and astigmatism.

LASIK has undergone multiple refinements over the years, such as bladeless flap creation and wavefront-guided customisation, making it a safer, more accurate, and more personalised alternative.

A 2016 study found that 99.5% of LASIK patients achieved 20/40 vision or better, which is the minimum visual acuity necessary for an unrestricted driver’s license in most parts around the world.

How It Works

The LASIK procedure involves creating a thin corneal flap under topical anaesthesia using either a microkeratome blade (traditional LASIK) or a femtosecond laser (bladeless or “All-Laser LASIK”).

Then, a computer-controlled excimer laser removes corneal tissue, reshapes the underlying stromal tissue according to the patient’s refractive error, and repositions the flap without the need for sutures. The flap adheres naturally to the eye and heals rapidly.

The process is typically completed in 10-15 minutes per eye.

Key Benefits

The most distinct advantage of LASIK is its rapid, painless execution, with minimal discomfort and expedited visual recovery. Other key advantages are explained below:

• LASIK surgery takes just minutes per eye and is performed on an outpatient basis.
• Most LASIK patients notice significantly improved vision within 24 hours, with full stabilisation in a few weeks. Individuals return to work or daily activities within 1-2 days.
• The treatment uses advanced eye-tracking and ablation software, which tailors it to every patient’s unique prescription.
• LASIK platforms incorporate wavefront-guided or topography-integrated technologies, offering enhanced precision and reduced side effects, such as glare and halos.
• LASIK typically involves less irritation and tearing during the healing process, unlike surface procedures like PRK.

Who is it Best Suited For?

LASIK is one of the most versatile and accessible refractive procedures, ideally suited for:

• Adults aged 18 and above with a stable prescription for at least one year.
• Patients with moderate to high myopia, astigmatism, or mild hyperopia.
• Individuals seeking rapid visual recovery with minimal downtime.
• Those with adequate corneal thickness, as thinning may limit eligibility.
• People who prefer a flap-based procedure and are not prone to corneal trauma.
• Patients seeking a widely available, cost-effective, and reliable option.

Trans-Epithelial PRK

Trans-epithelial PRK (TransPRK) represents a modern evolution of the original PRK (Photorefractive Keratectomy) surgery.

It is a no-flap, one-step surface-based laser vision correction technique, i.e., it does not involve cutting the cornea, unlike LASIK or SMILE.

Instead of manually removing the corneal epithelium (as in traditional PRK), TransPRK uses an excimer laser to remove the epithelium and reshape the underlying stroma in a single step.

How It Works

The TransPRK procedure utilises a single-step excimer laser to remove the ~50-micron epithelial layer. It reshapes the underlying stromal layer without the use of mechanical tools or epithelial scraping.

The epithelium vaporises and the corneal surface is corrected based on the patient’s prescription.

Then, a bandage contact lens is applied to protect the eye as the epithelium regenerates naturally over 3-5 days. Vision improves within 1-2 weeks, with final stabilisation occurring over 1-3 months.

Key Benefits

The most significant benefit of TransPRK is its no-flap alcohol-free process, which supports tissue preservation. Here’s a quick overview of some more benefits:

• TransPRK is entirely laser-based and requires no contact with blades, which reduces the risk of infection and flap-related complications.
• This doesn’t involve the use of chemicals, minimising post-operative haze and inflammation. 
• TransPRK is flapless, keeping the corneal structure intact. This is suitable for patients with thin corneas or those at high risk of ectasia.
• Fewer corneal nerves are severed in TransPRK compared to LASIK, resulting in fewer postoperative dry eye symptoms.

Who is it Best Suited For?

Trans-epithelial PRK is the preferred choice for patients with:

• Thin or irregular corneas that are not LASIK candidates.
• High-risk occupations, such as military personnel or contact sports, where corneal flap displacement is a concern.
• Chronic dry eye, as the surgery is less likely to worsen the condition.
• A demand for a flapless, touchless procedure with strong safety margins.
• Low to moderate myopia, hyperopia, or astigmatism and a healthy corneal surface.
• Concern for long-term structural integrity of the eye.

CustomEyes

CustomEyes is an individualised vision correction method that adapts to patients’ unique optical systems. The treatment uses advanced diagnostics, individualised laser programming, and high-speed excimer or femtosecond lasers.

CustomEyes integrates topography-guided (addressing corneal surface irregularities), wavefront-guided (correcting internal optical aberrations), or wavefront-optimised (preserving natural corneal asphericity) techniques depending on clinical need.

It addresses not just refractive errors but also corneal irregularities and internal optical distortions. The procedure enhances overall visual clarity, contrast sensitivity, and night vision.

How It Works

CustomEyes begins with high-resolution, multi-dimensional scans using wavefront aberrometry, corneal topography, and pachymetry. These detect both lower-order (myopia, hyperopia, astigmatism) and higher-order aberrations (coma and spherical aberration).

This data helps create a personalised wavefront-guided, topography-guided, or hybrid treatment plan. Then, AI-assisted algorithms simulate and optimise how light passes through the eye for the best results.

Finally, a high-speed excimer laser reshapes the cornea to correct both refractive errors and internal optical distortions.

Key Benefits

The greatest benefit of CustomEyes is its ability to tailor every aspect of laser correction to the patient’s unique optical system, including flap thickness and ablation depth. Some additional benefits are listed below:

• CustomEyes specifically targets optical distortions, reducing issues such as glare, halos, and starbursts, particularly during nighttime driving.
• This process optimises offers vision better than 6/6, with crisper contrast, improved depth perception, and brighter, more defined vision.
• It works with LASIK, TransPRK, or PRK by enhancing accuracy and results for all procedures.

Who is it Best Suited For?

CustomEyes is best for patients who want advanced vision correction, including those with:

• High visual performance demands (e.g., pilots, surgeons, designers, athletes).
• Irregular astigmatism, decentered corneas, abnormal corneal topography, or mild higher-order aberrations.
• A need for custom-tailored enhancements rather than one-size-fits-all surgery.
• A history of contact lens-induced corneal warpage or previous eye surgery.

Which Refractive Surgery Is Best for You?

The right choice of refractive surgery depends on whether the patient has general needs, special eye concerns (such as thin or irregular corneas), lifestyle demands (such as high-performance professions or sports), a desire for maximum personalization, or a preference for minimal invasion and quick recovery.

Here’s how different patient profiles influence the choice of the best procedure: 

1. Patients Requiring General Vision Correction

SMILE and LASIK are widely used procedures for correcting common refractive errors such as myopia, hyperopia, and astigmatism for patients with healthy corneas and stable prescriptions.

Both techniques have been proven to provide fast visual recovery and deliver consistent results, reducing or eliminating the need for glasses or contact lenses.

2. Individuals with Thin Corneas

Trans-epithelial PRK is suitable for individuals with a thin cornea because it’s a flap-free process and causes minimal stromal ablation.

3. Individuals with Irregular Cornea

Contoura Vision is recommended for correcting refractive errors in people with an irregular cornea. Its topography-guided planning addresses irregular astigmatism and enhances overall visual performance.

4. High-Performance Individuals

WaveLight Plus InnovEyes and SILK are ideal for individuals who require superior performance, including sharp vision, enhanced contrast sensitivity, accurate depth perception, improved night vision, and minimal visual disturbances.

These procedures offer enhanced optical precision, dynamic mapping, and minimised aberration induction.

5. Patients Seeking Ultra-Personalisation

WaveLight Plus InnovEyes and CustomEyes are suitable for individuals requiring maximal customization, such as patients with high refractive errors, irregular corneal shapes, or specific occupational visual needs.

Both these procedures can be tailored to the unique anatomical and optical profile of the individual eye.

6. Patients Seeking Minimal Invasion and Fast Recovery

For individuals seeking reduced surgical trauma and faster healing, such as athletes, active professionals, or those prone to dry eye, minimally invasive techniques like SMILE Pro and SILK are preferred.

What to Consider When Choosing a Procedure?

When choosing a refractive eye procedure, consider factors such as corneal thickness, pupil size, tear film quality, lifestyle, customisation preferences, age, refractive error stability, budget, and the hospital’s availability. Below are the key considerations in detail.

1. Corneal Thickness

The thickness of the cornea determines which procedures are safe and suitable for an individual.

If the cornea is thin, flap-based surgeries like LASIK remove excessive corneal tissue. This can make the cornea unstable, leading to complications like corneal ectasia. Thus, flapless options like SMILE, SILK, or TransPRK are generally safer and more appropriate for thin corneas.

On the other hand, if a cornea is thick enough, flap-based surgeries like LASIK are safe.

2. Pupil Size

Pupil size affects the quality of night vision after surgery. Larger pupils have a higher risk of halos, glare, and reduced contrast sensitivity at night or low-light conditions than smaller pupils.

Advanced surgery options, such as WaveLight InnovEyes or CustomEyes, are more suitable for larger pupils.

Individuals with smaller pupils can undergo any of the listed treatments without said complications.

3. Tear Film Quality

Tear film quality impacts comfort and healing after surgery.

Individuals with poor tear film or pre-existing dry eye have an increased risk of post-surgical dryness, especially with flap-based surgeries such as LASIK. Flapless options like SMILE, SILK, and TransPRK preserve more corneal nerves and are more comfortable for them.

People with healthy tear film quality can choose any flap-based or flapless surgical procedure.

4. Lifestyle and Activity Levels

The patient’s daily activities and career needs also define the best choice of procedure.

Individuals involved in high-contact or high-impact activities (such as martial arts or army training) are at risk of flap dislodgement. Flapless procedures (SMILE, SILK, TransPRK) reduce this risk.

Those aspiring to join the military or outdoor professions must consider flap-free surface treatments like TransPRK owing to its durability.

Busy professionals or students who require rapid recovery should consider SMILE Pro or LASIK for faster visual recovery and minimal downtime.

5. Customization Needs

Some individuals require more precise vision than 6/6 visual acuity, improved night vision, or superior contrast sensitivity. In these cases, they require advanced correction procedures, including CustomEyes, Contoura Vision, or WaveLight Plus InnovEyes.

These systems correct refractive error and higher-order aberrations based on the patient’s unique eye type.

Those without such needs can opt for more basic procedures, such as standard LASIK, SMILE, and SILK.

6. Age

Age plays a significant role in determining the speed of healing and the elasticity of eye cells post-operation.

Doctors typically consider patients suitable for all the listed treatments to be between 21 and 40 years old, owing to their fast healing response and stable corneal structure.

Individuals over 40 with presbyopia or the early signs of the same are recommended LASIK or CustomEyes. These accommodate slow healing speed and poor elasticity of eye cells.

7. Stability of Eye Power

Stability in eye power or prescription is necessary for treatment efficiency and long-term results.

A candidate for any of these procedures must have stable eye powers for at least the past 12 months.

Younger patients under 22 years often have fluctuating prescriptions, making them less ideal for any of the surgeries. They are usually advised to wait until stability is confirmed.

8. Budget and Hospital Availability

Not all procedures are equally accessible or affordable. Standard LASIK and PRK are generally more affordable and accessible, i.e., most hospitals offer them.

SMILE, SILK, Contoura Vision, and personalised treatments (InnovEyes, CustomEyes) are expensive but offer superior quality. These are available only at select hospitals due to the specialised equipment required.

Your choice of treatment also depends on your financial capabilities and whether you can access hospitals that offer these treatments.

What are the Most Advanced Hospitals for these Surgeries?

The most advanced hospitals for these surgeries are Eye7 Eye Hospitals, among private hospitals, and AIIMS and Sankara Nethralaya, among government hospitals. Let’s get familiar with each of them here.

1. Eye7 Eye Hospitals, New Delhi

Eye7 Eye Hospitals are widely recognised as one of Delhi’s premier institutions for refractive eye surgery, with over 35 years of experience. They combine deep expertise with advanced technology across all the procedures mentioned, at six locations in New Delhi.

The hospitals are known for several innovative vision correction techniques and is a pioneer in bladeless surgeries. It is among the first in Delhi to adopt new-generation platforms, such as VisuMax 800 and WaveLight EX500, offering cutting-edge procedures with exceptional precision.

2. AIIMS, New Delhi

AIIMS is a government-run hospital, governed by the Ministry of Health and Family Welfare, in Delhi, that offers most of the listed surgeries except for SILK. Patients receive treatment at a significantly lower cost at AIIMS through the RP Centre for Ophthalmic Sciences. 

The hospital, established in 1956, has a dedicated department equipped with the latest technology for these procedures, ensuring a safe and fast recovery, as well as an exceptional patient experience.

3. Sankara Nethralaya, Chennai

Sankara Nethralaya is a leading not-for-profit eye hospital in Chennai, founded by Dr. S. S. Badrinath. The 1978-established hospital is renowned for its affordable excellence. It serves thousands of patients across India and abroad.

It offers a comprehensive range of refractive eye surgeries, including LASIK, SMILE, Contoura Vision, and wavefront-guided LASIK.

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Resources

1. https://www.sciencedirect.com/science/article/abs/pii/S0886335018310034
2. https://pubmed.ncbi.nlm.nih.gov/27531300/