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Precautions after Lasik Eye Surgery


Good Morning, Dr Khanna here, with some very interesting questions on Lasik eye surgery, looking at it from a different angle. Some things I hadn’t thought people think and that’s how we learn more.

The first question is, “where to buy Lasik goggles” initially I got confused, like what do they mean by Lasik goggles? Then I understood. When we do Lasik surgery, we provide you postoperative kits, special glasses to wear, both during night, which are clear and wrapped around your face, so that you don’t accidentally touch or rub your eyes, and then during day time, so that no dust, sun or wind goes in and irritates your eye. I understand that some people are not able to get the same from their own Lasik providers and they’re looking to get good quality ones. So if you do online search, you can find like MHI Care, (INAUDIBLE – 1:08), solar glasses,, funny name but it’s true, it is very cheap. But these have some good quality, both sun glasses, driving glasses, antiglare glasses which are very affordable.

Can Lasik cause flutters?” No, Lasik does not cause flutters and Lasik does not treat flutters.

Which leads us to the next question, “can Lasik cause dry eyes?” Yes, Lasik can cause dry eyes, but usually it’s not permanent. When we did some studies, going back 20years ago, we used an instrument called the Osteometer, which checks the corneal sensation. We found that most of the corneal sensation returned back to normal between 3-6 months, and by 6 months people will adapt. That’s why when we are preempting dry eyes, that means we don’t want people to get dry eyes from Lasik, we start artificial tears, even insert punctual occluders in the corners of the lids to preserve the natural tears to prevent dryness from occurring. It is also very important to make sure that people don’t have severe dry eyes and that would become a contraindication. Like people with (INAUDIBLE – 2:27) syndrome who cannot produce any tears at all.

Another way we help people pre-avoid dry eyes, is that cyclosporine drops like Restasis or Zydra in indicated (INAUDIBLE – 2:41)

Our next question is, “can Lasik cure blindness?” I think that is a very general question. If the blindness legally is resulting from nearsightedness or astigmatism, yes, it can cure that. But if the blindness is from retinal detachment, (INAUDIBLE – 3:02) generation, optic nerve atrophy, then Lasik cannot help.

Can Lasik correct double vision?” This is very important, because just yesterday, we got referred to a 24 year old young man but his neurologist, to find out the cause of his double vision. Now double vision is known as diplopia. We had to separate diplopia from monocular diplopia, where in each eye, when the other eye is closed you see double, to binocular diplopia you see double only when both eyes are open. When it is binocular diplopia, then more nerve related issues or muscle related issues are the cause. Because both eyes have to work in sync, so if the muscle is weak on one eye, one eye will move and the other eye will not and then you can have double vision. But this boy has a very clear history, that even when the left eye was closed, the right eye saw double. And the other way, when his right eye was closed, his left eye could see double too. Such things point more towards astigmatism, and that was my first impression, and we checked it his numbers, found astigmatism, put it in the trial frame and he said yes the diplopia disappeared. So that will be cured by Lasik.

Can Lasik be done twice?” Yes, Lasik can be done twice. And when we do it the second time, we don’t even have to lift the flap. If we do Lasik today, and patient need to be enhanced to fine-tune in six months, we can just lift the old flap. But if the flap was done 10 – 15 years ago, with older instruments, it might not be wise to lift it up, and then the option becomes doing a surface treatment.

Thank you so much, keep your questions coming and watch out for answers.

What can I expect after having Lasik Eye Surgery?

So, you have gone ahead and had Lasik Eye Surgery. You may be wondering what to expect next. Are there any side effects or precautions you need to look out for or be careful of? We are here to answer all of your questions.

Side effects of Lasik Eye Surgery

After having Lasik Eye Surgery it is common to have some temporary side effects. One side effect is that you might experience some tearing from either one or both of your eyes, and it might switch between the eyes. Your eyes may feel irritated and/or you might feel like there is something in your eye. There might be the occasional appearance of small red spots on the whites of your eyes. You also may experience sensitivity to light and your vision may be a bit hazy on the day of your treatment. These are all common side effects and should not alarm you. If you are experiencing any other side effect or are concerned about any part of your recovery contact your surgeon immediately.


What Precautions should I take after having Lasik Eye Surgery?

Now that your Lasik Eye Surgery is over, there are some precautions we would like to go over with you. As with any surgery, or procedure, there are some steps you need to take to avoid injury or infection. First up, you are going to want to avoid showering or washing your hair until at least the next day. If you do decide to shower the next day you must be careful not to get any water, shampoo, or soap in your eyes for at least a week after surgery. Not that you would normally want any products in your eyes anyway! This just means you have to be extra careful. You will also want to avoid going swimming or using a sauna for at least three weeks after surgery. If you are thinking about getting your hair colored or permed, you must wait at least 10 days after your surgery. You should also avoid wearing any eye makeup for at least a week, and make sure it is clean so you can avoid any bacterial contamination or infection. You have to try not to rub your eyes for at least a month and you must sleep with your eye goggles for at least a week. You can exercise again two days after surgery but make sure to wear eye protection for up to a month after your Lasik Eye Surgery. Keep away from dirty or dusty surroundings for at least a week, and lastly make sure to wear sunglasses when you are outside in the bright sun.


By following these precautions, you will help to ensure a fast and safe recovery from your Lasik Eye Surgery.

If you have any questions or would like to set up a consultation call today 310 482 1240




Idesign Lasik

What is iDesign Lasik?

Hi. This is Dr. Khanna, and today we are going to talk about iDesign LASIK eye surgery and why it’s one of the best LASIK vision corrections available today.

We have come a long way from the early ‘90s, when lasers were first invented to correct or reshape the human cornea. The precision and accuracy and safety has increased in the culmination of iDesign. It’s better than SMILE. It’s better than conventional, Wavefront Optimized, and even Wavefront LASIK, because it can not only correct astigmatism and other aberrations, it can do it very precisely. Let me just focus then on a little iDesign picture to show you what all it measures, and then it can treat that. If you look at this picture, it identifies the outer iris boundary. It identifies the inner iris boundary.

Smile vs Idesign Lasik Surgery

Smile vs Idesign Lasik Surgery

It identifies the hills and valleys, and also, the center of the cornea, the fixation, reflects, and the pupil, center of the pupil. These become very important when you’re dealing with esotropia or exotropia or angle alpha and kappa. Without getting you confused, all the three things I mentioned, the center of the pupil, center of the cornea, and the side reflects should be well opposed or as close to each other. The fun begins when they are separated, and that’s where we get into angle alpha and kappa. It becomes very important that the computer which is generating the treatment profile takes those into consideration and the algorithm is based on previous studies and seen where the outcomes would be the best.

iDesign Lasik does that. We don’t have that facility in conventional and other forms. Now we’re going to turn to some more interesting pictures here. If you look on this, I’ll move onto this side. These are 3-D images of the higher order aberrations, all aberrations, and the refractive map, and the point spread function of the higher. If you want to focus on in here, you’ll see it looks fairly uniform, though even from here to here versus from here to here, you see the shape is different. If you’re using SMILE or conventional, they’ll not be able to match, correct the shape, because for -5, it’ll be just making it like a sphere. Whereas in iDesign Lasik, the treatment is matched to the exact shape.

This gets even more interesting when we look at the higher order aberrations. What are the higher order aberrations? They’re called coma, etc., trefoil patterns. The lower order is what we are used to. The sphere, cylinder. But in the higher order of aberrations, if you look, how do they generate this? If you want to do SMILE or conventional, how is going to be possible to match the shape to correct this? What it means is, here on the hill and here, it needs more spots and here it needs less spots. The same thing we can see in the point spread function, that the cornea is not uniform when you compare superiorly and inferiorly, and even temporally and nasally.

If you were to put a mirror here, this spot and this spot wouldn’t match. That means the treatment profile is unique for each eye, and that can only be achieved by a really fast computer processor and special cameras which can pick up and then transmit all that information to a laser which can use that by variable spot scanning to reshape the cornea to give us the most precise vision possible.

I hope this is helpful. If you have any questions, feel free to comment or reach us at 805-230-2126. Have a wonderful day.

eathquake lasik safety

Lasik Earthquake Safety

Did you feel that earthquake? Yes, we were rocked by an earthquake with the epicenter being near Channel Islands. We were very lucky, we didn’t have any injuries, and nothing broke down. But, two patients came today with some interesting observations and stories and I wanted to relate them to you.

One patient recently had Lasik with us. He said when the earthquake struck he was one of the special invitees who has the alarm on his phone which goes off a few seconds before an earthquake strikes. He was able to pack his bag and rush out of the building before the earthquake struck. The second patient who came said yesterday he realized why we should have Lasik eye surgery.

He had just taken off his glasses and was rubbing his eyes or something like that when the earthquake struck. When everybody started rushing out, he ran out as well; however, he couldn’t see well because he wasn’t wearing his glasses causing him to hit his head on the door as a result.

He came in today saying, now I need Lasik eye surgery. This is just one of the examples I’ve come across in my twenty-six years helping people see better. One of the small things in life which can change when you have better vision during some big things like a natural calamity like in a storm, Hurricane Katrina, et cetera. Or, an earthquake like yesterday.

When vision becomes one of the most important things in regards to our safety, it’s at that time that we realize how important it is for our emergency responders like firefighters to have good vision when they run into smoke, rubble, and fire to save people.

I’m sure you have other interesting stories where either you’ve already experienced the benefits of having Lasik eye surgery, or you wish you had Lasik eye surgery. We would love to hear from you, so send us your stories.

Lasik Earthquake Safety lesson is over

Thank you. This is Dr. Khanna signing off.

Meet the eye docotr Dr.Rajesh Khanna

Common Questions Answers Lasik Eye Surgery

Interviewer: Hi guys, today we are hanging out with the laser man and we are going to ask you a few question. How are you doctor?
Doctor Khanna: Fine, thank you and welcome to this show.
Interviewer: Okay, the first thing I would like to know. Since you have been talking about laser surgery, how long does it last?
Doctor: There are two answers to that if I understand correctly. First, what I understand is how long will the procedure take. The procedure takes a minute or two per eye. The second part if I understand correctly is; will it last me a lifetime or not. In the modern technology of ‘eye design laser surgery’, it is a lifetime outcome. 20 to 25 years ago, with the other conventional lasers, it never lasted long. All infrared group was incorrect and it did not last. Without confusing you, if you are in your 20’s to 40’s and you are a good candidate for ‘Lasik’, which is a computer, controlled active laser eye design technology. The imperfections will be wiped off for life. So it is a lifetime investment.
Interviewer: Wonderful. Now that we have asked about this part, I would like to ask you what the side effects or after effects, we can have from this surgery?
Doctor: That is a very good question. We need to know about that so that we can plan ahead and in our practice we avoid those side effects. The most common being dry eye. Because we know that, we are fashion a flapping Lasik eye surgery. Whenever you do a flap whether it is by laser or by automatic microkeratomes, you end up cutting the cornea nerves. The cornea nerve supplies the eye with sensation, which helps in the production of tears. Around 3-6 months after Lasik, while the cornea nerves are recovering there can be dry eyes. We start patients on artificial tears ointment and even put in (inaudible 02:12) to preserve the natural tears. Another side effect, which used to be more common but it is less common but still occurs is ‘glaring halos’ in the post-operative period. Treating the dry eye does decrease that incidence but is somebody is inconvenienced we do prescribe yellow tinted glassed that people wear for driving bikes which cuts of the glare.
Finally, there can be under correction or over correction with eye design technology but the incidence is very little. To make sure it does not occur we have nomograms we apply and this should measure the refraction between one to three months to make sure we hit a point and brought the patient down to zero. Those are the common side effects. In some patients, especially the younger ones there can be some inflammation in the post-op period. We do start steroid drops but do not worry these are not bulk up your muscles, they are very low dose. They do help to prevent and treat the inflammation. Infection is always a treat, we do not see it commonly but we start topical antibiotics drops a day before and we continue for 5-7 days after surgery.
Those are the common side effects that we see and we work hard to prevent any of them from occurring.
Interviewer: Very nice. We have gotten to understand two things today. The first was about the laser, how long it takes and how long does it last. The second thing you were talking about was the side effects. Now that you have mentioned this few things, we just want to know if it is different for each customer or for each person?
Doctor: Yes. Not everybody is a candidate for laser eye surgery. There are certain criteria that they must fit in before we can qualify them. Age being the first, if you are less than 18 years old, you are very mature and have developed cataracts or gone beyond 50 years of age, Lasik may not be the best choice for you. In that age group between 18 and 50, we have to see if your cornea has good uniformed thickness and shape. Shape and thickness of the cornea is important and any systemic disease has to be considered. Finally, your refraction has to be stable, which is usually the case between 18 to 50 years of age. We do like to make sure, so that we do not hit a moving target. If all those qualify and your prescription had to be under 10 diopters and depending on the corneal thickness, we have to see how much tissue can be ablated so that the safety zone is empty.
To summarize, we look at age, refraction, third the stability of refraction, fourth the corneal shape and fifth the corneal thickness.
Interviewer: So it depends on every individual.
Doctor: Every individual is unique as is their eye and all of them must pass these criteria. If there is any red flag on any of that, then we cannot do Lasik for that person. We would have to switch to another kind of therapy like EPILASIK, SUPERLASIK, ICL or presbiopic implant in the eye.
Interviewer: To ensure that the eyes are going to be well kept, well maintained and well done. How do you confirm that the patient would deserve this Lasik or another Lasik that you just spoke about?
Doctor: That is another beautiful question that you have asked me. What we like to do is; we want to know what the patient wants out of the procedure. We know all the procedure we have and what they can give to the patient. Each patient is different, 18-4 it is easier because they want good distance and the eye will change its shape using the muscles to see near. If they qualify, Lasik will be the first choice but if the prescription were high for example -15, we would offer them ICL. If a patient is about 4 or definitely above 55, then ‘SUPERLASIK’ or presbyopic implant in eye is a better choice. The difference being Lasik static vision and presbyopic gives dynamic vision. What I mean by that is; there are three zones of vision.
Distance: when you are driving a car and you want to see far
Middle: which was never important 20 years ago but is definitely important now. For seeing I phones, laptops and dashboard of the car.
Close: for reading and to see small bottles
Lasik can give you one of these three. That is why they say under 50 Lasik works well, because when you see one zone distance, the muscles are strong enough to show you the other two zones by changing the shape of the lens. When you are above 50, the lens is not able to change shape. If you do Lasik, you are able to set their vision for distance, middle or near. Whereas, ‘presbyopic’ gives you all three; distance, middle and near. That is a better choice for people above 50 and Lasik is a better choice for people below 50.
Interviewer: Fantastic. Thank you so much doctor. I am personally convinced about what you have said. I would definitely come up with more questions some other time. It is great to hang out with you. I am looking forward to seeing you again and coming up with questions that the customers or people will ask me
Doctor: Thank you so much. Have a wonderful day

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Smile laser vision correction

$1499 Tax Day Lasik Special Price Revealed for Los Angeles


Date: March 19 2018

Call (805) 230 2126 NOW for $1499 Tax Day Lasik Special Price Revealed for Los Angeles. 

Have you been wondering what to do with the Tax refund you are about to get. Invest it in your sight. Now there is. good reason to use it wisely. Khanna Vision Institute is offering special pricing during months of March and April. If you avail of this Lasik deal with your refund it may be almost free for you.

If you had saved money in FLEX or HSA plans now might be the best time to make use of those dollars. Combine the $1499 lasik special with your tax refund and add to it your HSA amount. This would make an awesome gift to yourself. Or your significant other. Or your loved ones.

Deals like these do not last for long . Only 45 days.

What do you get with $1499 tax Day Special ?

One of the best Lasik surgeons in Los Angeles

Great advanced cutting edge laser technology.

Meticulous care with amazing number of follow ups.

Hit the number now – (805) 230 2126

and Yes you get the all time favorite – Free screening


Newer LASIK idesign wavescan lasik

Newer Lasik

Newer LASIK is here. The laser used for lasik is shinier faster and more accurate. These factors make it more safer. We always focus on safety. The more safer the procedure the less fear we will have- consciously and subconsciously.

Do you think all LASIK are the same?

Just like all cars are not the same, even though each one usually takes us to our destination. LASIK quality may vary depending on the surgeons experience, LASER used.

Newer Lasik is Safer

It has become much safer since the early days of LASIK in the nineties.

The tracker can follow all micro movements of the eyes.

Experienced surgeons know the limitations of LASIK

Current 4th generation LASERS are more precise. Utilizing knowledge of maths and physics the shape of cornea is maintained similar to that before surgery. This reduces aberrations, which was another cause for visual dissatisfaction. Early lasers were whole beam lasers like carpet-bombing, Newer ones are flying spot or variable spot, yielding precise placement only where needed

The diagnostic Wavefront devices can map visual errors more accurately and even show the surgeon what the patient is seeing.

The flap designing instruments are more refined and tested. They are more friendly to the eyes.

Sterilization techniques have improved.

Newer Lasik is customized

Blend zones (a way of applying the computer controlled laser) and larger zones have decreased the incidence of glare and haloes.

More than 5 million procedures have been performed. The cumulative data has yielded learning points which would have taken a surgeon a lifetime to accumulate. Dedicated LASIK surgeons have access to this data, and can use the wisdom of their peers. As the computer chips have advanced they have increased the speed and response rate of the lasers. The surgeon has power to override all these gizmos. Hence an attentive surgeon with quick reflexes is still the most important.

If not candidate for LASIK, Advanced surface ablation or epilasik an option.

Blended vision for better distance and near reading.

Newly discovered drops reduce pain and increase tear production. Modern materials help preserves tears and keep the eyes moist

As important as the car is the driver. Age restrictions. Numbers of successful surgeries done are important.

Are lasers maintained by authorized companies? The assistants are certified and only Licensed operators used.

If by any chance you were not able to comprehend the stuff above it does not matter- rest assured we understand. We apply the same knowledge when we touch your precious eyes – so place your trust in us.

Dr Rajesh Khanna, MD

Lasik Eye Surgeon Los Angeles

Lasik Eye Surgeon Los Angeles

Rajesh Khanna is a Board Certified Lasik Eye Surgeon in Los Angeles who fixes most vision problems. He performs Lasik, Super Lasik, Advanced fixing of the cornea, lens implants, and cataract surgery. He uses the most updated and FDA approved machines for all of his surgeries and assures his patients that they are in safe hands. He focuses on fixing eyesight perfectly for each individual patient and hopes to maximize patient satisfaction. Many of his patients include rock stars, movie stars, doctors, and other professionals.

Lasik Eye Surgeon Los Angeles

Dr. Rajesh Khanna, MD

What is Lasik?

Lasik is a laser eye surgery that reshapes the cornea to fix most eyesight problems. A flap is cut open in the cornea and a laser is beamed inside the eye. Once the eye has been reshaped, the flap is put back in place and the eye begins to heal immediately. Most patients are able to see within a day or two after walking out of surgery and only need eye drops for a few weeks to help the healing process.

Education and Experience

Dr. Khanna has completed two residencies in Ophthalmology, fellowship in various eye surgeries, and training at State University in New York. Additional to his practice, he trains student ophthalmology surgeons at UCLA and is on the faculty at St. Johns Hospital where he performs cataract procedures. Dr. Khanna has been practicing advanced eye surgeries for over 25 years and is very experienced in what he does.


Lasik Eye Surgeon Los Angeles – Rajesh Khanna is an award-winning ophthalmologist who has been recognized by doctors, magazines, and numerous organizations. He was identified as the top doctor in L.A. in 2011, voted best Lasik surgeon by the readers of the L.A Daily News and the Ventura County Star, listed as one of America’s top ophthalmologists by Consumer Research Council of America, featured on the cover of Beverly Hills Times, and featured on the Best of L.A. SoCal T.V and numerous radio stations across the country. Additionally, he was featured in a 2011 article in Newsweek where he was listed as one of the top 15 leaders in laser eye surgery. He is trusted by many Hollywood celebrities and doctors.

Free Consultation with Lasik Eye Surgeon Los Angeles

If you think that you may be a candidate for Lasik or another eye surgery, contact Rajesh Khanna’s office at 1 (310) 736 4806 to set up an appointment. Lasik or PI patients will receive a free consultation to see if they are able to get this surgery.

lasik surgeon los angeles

What is Lasik?

What is Lasik?

Have you wondered exactly what is Lasik? If you’ve been prescribed glasses or contact lenses, chances are that your optometrist has listed Lasik as an option. Lasik is a type of laser eye surgery that can correct most vision issues: nearsightedness, farsightedness, astigmatisms, and difficulty reading for people over 40. It corrects the shape of the cornea to help sharpen images without the help of glasses or contacts. This surgery has been performed for over thirty years and is safe, pain-free, and has a very short recovery time.

Am I eligible for Lasik?

Ideal candidates for this procedure are at least 18 years old, have a stable prescription that hasn’t changed more than 1.0 in a year, and has a vision prescription between -14.0 and +6.0. However, only a consultation with an ophthalmologist can determine whether or not a patient is eligible for Lasik.

What is Lasik’s procedure?

The procedure itself is very simple and doesn’t take more than eight to twelve minutes total. Patients use eye drops to numb each eye and the surgeon creates a ring of blue dye around the cornea as a reference point. Then, the surgeon uses a microkeratome, a precise vacuum-like instrument, to cut a small flap of corneal tissue and shines a laser to reshape the cornea to fix the condition of the patient. The surgeon puts back the flap in its original position and the tissue begins to heal immediately. To help the healing process, patients are given daily eye drops for the following weeks. When asked what is Lasik recovery like, ophthalmologists say patients regain vision within just a day or two of walking out of the operation room.

What is Lasik?

A cool beam of light is applied underneath the corneal flap.

What are the risks with this surgery?

Lasik eye surgery is very low risk, however, a few patients do get dry eyes. This can generally be fixed through hydrating eye drops or in severe cases patients can get an implant that slows the draining of tears. Each of these procedures are painless, comfortable, and can last up to a few years depending on the implant the patient is eligible for.

Taylor Clarke

Lasik Los Angeles

Best Lasik Los Angeles

Everyone seeks the Best Lasik Los Angeles. It is human nature. Some may say it is an evolutionary mechanism of survival to attain the Residents of Los Angeles live in a cosmopolitan world. there are numerous choices. Some people are looking only for the cost. They are willing to play a gamble with their eyes. Most people, on the other hand seek safety and good out comes with lasik laser eye surgery. It is difficult to choose the best. In the jungle a fight to fish would determine the top honcho. We don’t envision lasik surgeons dueling with each other, using their lasers. Though, that could be a new spin off of Star Wars.

Choosing the Best Lasik Los Angeles

We interviewed many people in Los Angeles who wanted only the best for their eyes. The following points emerged. These helped them select the Best Lasik Los Angeles Center.

  1. Newest lasers
  2. Good Reputation
  3. Nice Reviews
  4. Great bedside manners
  5. Willing to listen
  6. Open to showing the equipment
  7. Steady hands
  8. Warm Caring Staff
  9. Advanced technology
  10. Stellar Follow up care

Best Lasik Los Angeles

This feedback it will make your journey to find the Best Lasik Los Angeles Surgeon much easier. Watching Lasik video reviews will build your confidence. Answers to seventy percent of the questions can be deduced before you even step in to the lasik center for a consult. Do not waste your time at the lasik office asking generic questions like- is lasik safe, or how long does it last. If it was not safe why would surgeons be performing it. FDA has already approved it multiple times, after studying the efficacy and safety data. Your time is best utilized to meet and interact with the surgeon. He is the one who is going to perform this sight enhancing procedure. You got to see his steady hands. Develop trust. Interacting with a surrogate and never seeing the master of lasik is an error. Many people take the word of their optometrist and never meet the surgeon till the day of the Lasik procedure. Than panic sets in. You fidget and staff scream for you to stop moving. you get the scenario.

To obtain the best lasik eye surgery  in Los Angeles, you have to be the best patient. Do your due diligence. There are no shortcuts in life. Certainly, no then you are hunting for the best.