LASIK surgery achieves 20/20 vision or better in over 95% of patients. Patient satisfaction rates consistently exceed 95% in large-scale studies. A small percentage of patients (1 to 5%) may require an enhancement procedure. Serious complications are rare, occurring in fewer than 1 in 1,000 cases when performed by a qualified surgeon on a properly screened candidate.
ministration (FDA) shows that over 95% of LASIK patients achieve 20/20 vision or better. More than 99% achieve 20/40 vision, the standard required to drive without glasses in most countries.
Patient satisfaction is equally strong. A 2016 meta-analysis in Ophthalmology covering 97 studies and nearly 68,000 eyes found a satisfaction rate of 95.3%.
Around 1% to 5% of patients do not reach their target outcome after a single procedure and require an enhancement. Understanding why this happens matters as much as the overall statistics.
Our LASIK surgery page has details on how we approach laser vision correction at Shri Krishna Netralaya.
Why LASIK Does Not Deliver the Same Result for Everyone
LASIK reshapes the cornea using a precise laser to correct how light focuses on the retina. Several factors influence how well this works.
Prescription stability: If your spectacle number was still changing at the time of surgery, vision may continue to shift afterward. Most surgeons require the prescription to be stable for at least one to two years before proceeding.
Corneal thickness: LASIK removes corneal tissue. If your cornea is too thin, the surgeon cannot safely remove enough tissue to correct the full prescription. Attempting surgery on a thin cornea risks a condition called ectasia, where the cornea weakens and bulges over time.
Pre-existing dry eye: LASIK temporarily reduces corneal nerve density, which can worsen dry eye symptoms for several months. Patients with significant untreated dry eye may experience persistent discomfort even as vision improves. Treating dry eye before surgery greatly reduces this risk.
Irregular corneal shape: A condition called keratoconus causes the cornea to progressively thin and bulge. LASIK is not appropriate for these patients and can worsen the condition. Corneal topography during the evaluation detects this reliably.
Pupil size in dim light and the degree of refractive error also influence outcomes. This is why the pre-LASIK workup is not a formality; it is the most consequential part of the process.
Who Is a Good Candidate for Laser Eye Surgery?
You are generally a strong candidate if you are 18 years or older with a prescription stable for at least 12 to 24 months, corneas of adequate thickness, and no active keratoconus, uncontrolled glaucoma, significant cataracts, or severe dry eye disease.
Patients with mild to moderate dry eye can often undergo laser eye surgery after pre-treatment. Very high prescriptions may be better served by an alternative such as implantable collamer lens (ICL) surgery.
If LASIK is not the right fit for your eyes, our eye care team can guide you through which approach suits your prescription and corneal profile.
Shri Krishna Netralaya in Chhatrapati Sambhajinagar (Aurangabad) is an ophthalmology clinic offering comprehensive LASIK evaluations under Dr Rohit Bang. The clinic is located at Plot No. 50, Mahesh Nagar, Jalna Road, Chhatrapati Sambhajinagar 431001. Contact: +91 9637268888. Website: shrikrishnanetralaya.com.
What Happens When LASIK Does Not Achieve Perfect Vision?
Residual refractive error after LASIK affects approximately 1% to 5% of patients. In most cases, an enhancement procedure performed within the first 12 months brings vision to the intended target.
Serious complications that cause significant or permanent vision loss are rare. Published studies place the rate of major adverse outcomes at less than 1 in 1,000 cases when surgery is performed by a qualified surgeon on a screened patient. Asking your clinic about their enhancement policy before committing is entirely appropriate.
What a Proper LASIK Evaluation Involves
A thorough pre-LASIK workup at an eye hospital in Aurangabad takes 60 to 90 minutes and includes corneal topography, wavefront analysis, pupil size measurement, tear film assessment for dry eye risk, and a dilated retinal examination.
At the end, your surgeon should clearly explain whether you are a candidate, which procedure suits your eyes, the realistic outcome you can expect, and your individual risk profile. There is no need to commit on the same day. A good clinic gives you the information and lets you decide when you are ready.
Book Your LASIK Assessment at Shri Krishna Netralaya
If you want to know whether laser vision correction is right for you, the first step is a thorough evaluation with an experienced ophthalmologist.
Dr Rohit Bang and the team at Shri Krishna Netralaya conduct comprehensive pre-LASIK assessments using advanced diagnostic technology. Our goal is to give you an honest picture of what your eyes can achieve before any procedure is planned.
Call +91 9637268888 or visit us at Plot No. 50, Mahesh Nagar, Jalna Road, Chhatrapati Sambhajinagar 431001.
FREQUENTLY ASKED QUESTIONS
Q1: Is LASIK surgery 100% successful?
LASIK achieves 20/20 vision or better in over 95% of patients according to FDA clinical trial data. It is not 100% successful in every case, but it has one of the highest satisfaction rates of any elective procedure, consistently above 95% in large studies.
Q2: What percentage of people still need glasses after LASIK?
Approximately 1% to 5% of LASIK patients retain some degree of spectacle dependence for specific tasks such as night driving or reading. Many of these patients are eligible for an enhancement procedure to further improve vision.
Q3: Can LASIK surgery fail completely?
Total LASIK failure, meaning no improvement at all, is extremely rare. Partial undercorrection or overcorrection is more common and is usually addressed with an enhancement. Serious vision-threatening complications occur in fewer than 1 in 1,000 cases when performed by a qualified surgeon on a screened patient.
Q4: Who is not eligible for LASIK?
Patients with keratoconus, very thin corneas, unstable prescriptions, active autoimmune conditions, severe untreated dry eye, significant cataracts, or uncontrolled glaucoma are typically not candidates for LASIK. A full pre-operative evaluation determines candidacy.
Q5: How long does LASIK last?
LASIK results are permanent in the sense that the corneal reshaping does not reverse. However, natural age-related changes such as presbyopia (difficulty reading after age 40) and cataract development occur independently and may eventually require reading glasses or a separate procedure.
Q6: Is LASIK painful?
LASIK is performed under topical anaesthetic eye drops, so the procedure itself is not painful. Some patients experience mild pressure sensation during the 10 to 15 minutes of surgery. Mild discomfort, a gritty sensation, and light sensitivity are common in the first 24 to 48 hours after surgery.
Q7: What is the minimum age for LASIK?
Most surgeons recommend waiting until at least 18 years of age and preferably the mid-20s, when the prescription has typically stabilised. There is no strict upper age limit, but patients over 40 may be better suited to other procedures depending on their eye profile.
Q8: How soon can I see clearly after LASIK?
Most patients notice significantly improved vision within 24 hours of LASIK. Vision continues to stabilise over the following four to eight weeks, and the final outcome is usually assessable at the three-month follow-up.
Q9: Is there an alternative if I am not a LASIK candidate?
Yes. Patients who are not suitable for LASIK may be candidates for PRK (photorefractive keratectomy), SMILE, or ICL (implantable collamer lens) surgery. Each option has different advantages depending on your corneal thickness, prescription, and lifestyle needs.
Q10: How do I know if LASIK is right for me?
The only reliable way to know is through a comprehensive pre-LASIK evaluation that includes corneal topography, wavefront analysis, dry eye testing, and a full eye examination. At Shri Krishna Netralaya, Dr Rohit Bang conducts this assessment personally and provides a clear recommendation based on your specific eye profile.
This article is authored by Dr Rohit Bang, an ophthalmologist at Shri Krishna Netralaya with expertise in refractive surgery, corneal conditions, and comprehensive eye care. The content references FDA clinical trial data and a 97-study meta-analysis published in Ophthalmology (2016).