
Picture nailing that 6 AM El Porto surf session or powering through Runyon Canyon sunrise—every wave and trail marker crystal clear. For active Los Angeles and Orange County residents,LASIK unlocks 20/20 vision or better. But how does LASIK work to achieve this? Dr. Ferzaad Moosa’s dual-laser precision at Excel Laser Vision Institute reshapes your cornea so light focuses perfectly on your retina, giving you permanent visual clarity. Below, discover the step-by-step process, Excel’s technology advantage, and why 90%+ achieve exceptional outcomes.
What Does 20/20 Vision Actually Mean?
Think of 20/20 vision as your visual baseline; it’s the standard measure of what a healthy eye should see at a particular distance. If you have 20/20 vision, it means you can see at 20 feet what the average person sees at that distance. The scale works both ways:
- 20/40 vision is below average (needing to be at 20 feet to see what most see at 40).
- 20/15 vision is exceptional (seeing at 20 feet what others only see at 15).
At Excel, Dr. Moosa crafts your personalized LASIK plan using WaveLight EX500 precision—delivering 20/15 vision for many Southern California patients.
How Does LASIK Work? The Science Behind Perfect Vision Correction
Clear vision starts with your cornea, the dome-shaped front of your eye that bends light onto your retina. When the cornea’s curve is imperfect, light focuses in the wrong spot, creating blur. LASIK fixes this by reshaping your cornea so light focuses exactly where it should: directly on your retina.
How Does Laser Eye Surgery Fix Refractive Errors?
- Nearsightedness (Myopia): Your cornea is too steep, creating excessive bending power that focuses light in front of your retina instead of directly on it. This is why distant objects appear blurry while close-up vision remains clear. LASIK gently flattens the cornea’s central curve, allowing light to travel farther and focus directly on your retina for sharp distance vision.
- Farsightedness (Hyperopia): Your cornea is too flat, creating insufficient bending power that causes light to focus behind your retina. This makes both near and distance vision challenging, though close-up tasks are typically more affected. LASIK steepens the cornea’s central curve, increasing its focusing power so light bends more sharply and reaches your retina at the correct focal point.
- Astigmatism: Your cornea has an irregular, football-shaped curve instead of a uniform sphere, causing light to scatter and focus at multiple points rather than converging at a single spot on your retina. This creates blurred or distorted vision at all distances. LASIK selectively reshapes the steeper meridians of your cornea, smoothing it into a more uniform sphere so all light rays focus together at one precise point.
The 5-Step LASIK Process
Now that you know how laser eye surgery works to fix refractive errors, here’s how 20/20 vision is delivered. Dr. Moosa uses two specialized lasers in sequence: the first one to access your corneal tissue (femtosecond), then the second (excimer) to sculpt it into the exact curvature your eyes need for perfect focus. The procedure takes approximately 5 minutes per eye, with results that patients often notice almost immediately.
Numbing & Preparation: Dr. Moosa applies anesthetic drops for complete comfort. A gentle lid speculum keeps your eyes open during this 10-15 minute procedure, so you don’t need to worry about blinking.
- Creating the Corneal Flap: An advanced femtosecond laser creates a thin, hinged flap with microscopic precision, accessing the tissue beneath while preserving your eye’s structural integrity.
- Precision Corneal Reshaping: Excel’s WaveLight EX500 excimer laser removes tissue as thin as 0.25 microns—thinner than a human hair—reshaping your cornea’s curvature to match your unique prescription.
- Flap Repositioning: The corneal flap is repositioned to act as a natural, self-healing bandage. No stitches needed—healing starts immediately.
- Rapid Visual Recovery: Most Los Angeles and Orange County patients see clearly within 24 hours, returning to work and active lifestyles the next day.
The difference between good results and exceptional ones lies in the technology guiding each of these steps.
What Sets Excel’s Laser Technology Apart?
Dr. Moosa’s commitment to using the most advanced laser systems available ensures exceptional results for every patient. The WaveLight EX500 excimer laser removes corneal tissue with 0.25-micron precision while advanced eye-tracking technology compensates for microscopic eye movements. When combined with Contoura Vision topography-guided treatment—which captures over 22,000 unique corneal elevation points—this gives Excel the ability to create personalized treatment plans that address your eye’s unique irregularities. This level of precision is why Excel patients consistently exceed standard 20/20 benchmarks.
What Visual Outcomes Can You Expect With LASIK?
More than 98% of LASIK patients achieve 20/20 vision or better. With Excel’s advanced Contoura Vision technology, many patients exceed this baseline—studies show 65% of topography-guided LASIK patients achieve 20/16 or better visual acuity. Your specific results depend on your eye health, prescription complexity, and the precision technology used during your procedure.
FAQ – What Else Should You Know About LASIK?
- Does LASIK Hurt?
No. Anesthetic drops completely numb your eyes, so you won’t feel pain—only gentle pressure when the corneal flap is created. Mild grittiness or light sensitivity afterward resolves within 24-48 hours.
- When Can I Drive?
Most patients can drive within 24-48 hours once Dr. Moosa confirms their vision meets legal standards at their next-day follow-up. You’ll need a driver to take you home immediately after surgery due to temporary blurriness.
- Will I Need Reading Glasses If I’m Over 40?
LASIK corrects distance vision but doesn’t prevent presbyopia—the natural age-related loss of near focus affecting everyone after 40. Most patients find this trade-off worthwhile for glasses-free distance vision, though Dr. Moosa can discuss monovision alternatives.
- How Long After Laser Eye Surgery Can I Swim or Exercise?
Light exercise is immediate; gym workouts resume in 3-5 days. Chlorinated pool swimming is safe after 2 weeks, ocean swimming and hot tubs after 3-4 weeks.
- Can LASIK Cause Night Vision Problems?
Modern wavefront-guided LASIK, like Excel’s Contoura Vision, significantly reduces night vision issues. Symptoms such as halos and glare are rare and, if they occur, typically resolve within the first few weeks after surgery.
Turn Precision Science Into Personal Freedom With LASIK at Excel Laser Vision
Excel’s advanced LASIK technology delivers what glasses can’t—precision 20/20 vision guided by 22,000 corneal data points.Schedule your complimentary consultation with Dr. Moosa or call (310) 905-8622 to learn how LASIK could work for you.
Flexible financing available. See the difference tomorrow.



