NV LASIK | Laservisionthai

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NV LASIK

People over 40 years old gradually lose the ability to change focus from distance to near. This condition is called Presbyopia and comes from a loss of flexibility of the lens inside the eye, as well as other age-related changes. This is a gradual change throughout life but not usually noticeable until the mid-forties. Although we may call this reading vision. It is the vision we use for eating, putting on makeup, or reading a watch or computer.

Reading glasses and contact lenses are used by many for the temporary treatment of Presbyopia. However, there are a number of vision correction procedures that can surgically reduce or eliminate the effects of Presbyopia.

Laser Vision is pleased to offer you the opportunity to see the world again as you once did!. Depending on your particular needs, we offer NV Lasik.

NV LASIK

To decrease the need for reading glasses, the technique of creating blended vision may be helpful. With NV LASIK, the doctor fully treats one eye (usually the dominant eye) for distance, and the other eye for near. This leaves one slightly nearsighted eye for good near vision without glasses. Blended vision can help you maintain reading vision in one eye to avoid total dependence on reading glasses. With NV LASIK, you must often give up some distance sharpness. A weak pair of glasses may be helpful at times for driving. Near glasses may be needed at times for extended or difficult reading.

Blended vision is a slight compromise of both distance and near vision. Depth perception is also affected. For people with high visual demands like sports or constant near work, we recommend full distance correction with glasses for reading. NV LASIK is reversible, and additional laser treatment can usually bring that eye to distance correction, if desired.

A GOOD CANDIDATE FOR LASIK SURGERY:

  • A person who has a presbyopia problem and desires the freedom from wearing glasses and/or contact lenses
  • An individual free of corneal disease, especially keratoconus or thin cornea, or any disease that will delay the wound healing process.
  • Pregnant  woman are not allowed to receive NV LASIK treatment due to the instability of the bodies hormones.
  • People who have a complete understanding of the benefit and side effects of the NV LASIK surgery, and have realistic expectations of the outcomes.

 

PREOPERATIVE NV LASIK PREPARATION

There are a few steps that preoperative patients need to complete before NV LASIK can be done, such as preliminary preoperative examination and an eye evaluation, which will be performed by our refractive surgery specialists.

PREOPERATIVE NV LASIK PREPARATION

The EYE examination There are a few steps that preoperative patients need to complete before NV LASIK can be done, such as preliminary  preoperative examination and an eye evaluation, which will be performed by our refractive surgery specialists.  It will take 2-3 hours for the eye examination, the step as follows

  • the corneal curvature and the corneal thickness by Orbscan and Topography
  • the pupil diameter by infrared Pupillometer
  • the refraction by Auto Refractometer
  • Manifest refraction before pupil dilatation with refractionist.
  • Measure Wavefront by OPDScan
  • dilate the pupil (this will be effecting your vision and light sensitivity)
  • Cycloplegic refraction after the pupil dilatation with refractionist.
  • work up examination and discuss with our refractive surgeon

1. Taking off the contact lens before the preoperative examination

  • For soft contact lenses, the contact lenses need to be taken off 3 days ahead of the day of consultation.
  • For hard contact lenses, the contact lenses need to be taken off 7 days ahead of time.The reason is that wearing contacts lenses, for a long time, could change the curvature of the cornea, therefore the refraction have changed as well. Not wearing contact lens, for a while, will cause the shape and the curvature of eye to revert back to its natural shape, enabling us to get more precise data of the cornea.

2. Due to the blurry vision that results after the dilatation of the eyes, it is recommended that the patient be accompanied by a relative or close friend. Dilation because the eyes to become extremely light sensitive and the patient might not be able to drive a vehicle after dilating the pupil.

3. Bring a pair of sun glasses is recommended.

 

NV LASIK PREPARATION

Preparation

  1. Take the contact lens off before hand (3 days for the soft lens, 7 days for the hard lens.)
  2. Take a blood test or bring test results with you when you come in.
  3. Please do not wear any perfume or body-spray that contains alcohol because the alcohol may effect the laser system.
  4. Please make an arrangement to be accompanied because after the surgery, the eye shields need to be used.

The LASIK innovative technology procedure takes only 15 minute per eye and the process is:

  • The procedure starts with a topical anesthetic eye drop to anesthetize the cornea, 15-20 minutes prior to the operation. During this period our refractive surgery specialist will explain each step.
  • The patient will then moves and lie down horizontally under the laser. The eye area is then cleansed with an antibiotic solution
  • An eye speculum is put into the eye to remove any worry about blinking.
  • The surgeon applies some suctions to the surface of your eye-you will feel slight sensation of pressure. Then, the superficial cornea is separated into two layers, using a delicate instrument called “microkeratome”; leaving small attaching hinges to facilitate the repositioning (like a door of window with hinge).
  • The flap that is created is then gently lifted. Using the excimer laser to reshape the cornea.
  • You will hear the laser making a faint clicking sound.
  • After laser surgery is complete, the flap will then be put back without suture and the cornea flap will heal naturally.
  • Following the treatment, antibiotic drops will be placed in your eye and a special protective lens, known as, bandage contact lens, may be inserted.
  • After final cleaning around your eyes, the eye shield will be covered to prevent the patient from accidental contact. This eye shield has a small hole to look through it.
  • As the effect of anesthetic drops begins to wear off, it is possible that you will experience some discomfort or pain, but this is unlikely. You  will be given a supply of tablets, eye drops, and instructions and will be free to leave.
  • A post operation checkup will be scheduled for the day after the surgery took place.

POST OPERATIVE NV LASIK TREATMENT

POST OPERATIVE NV LASIK TREATMENT

To avoid complications and to ensure the rapid healing process of the eyes, please comply with the following guidelines.

First day post-operative

  • If there is an excess of tears or discomfort or itching around your eyes, do not take the eye shield off. You should use soft cotton to gently clean around the eye shield.
  • Get rest and try to keep both eyes closed. We advise against watching television or reading, since these activities
  • only irritate your treated eye(s). If you cannot sleep, it is suggested to take low dose sleeping pills, which will be provided.
  • Allow the surgeon to remove the bandage lens after surgery – this will occur during your first aftercare visit (in the event that the bandage lens comes out before the visit, no attempt must be made to replace it yourself).

First  week post-operative

  • Instill the antibiotic drops and tear substitution as prescribed.
  • Put on the eye shield at night to avoid accidental contact.
  • Be careful of getting water or dust in your eyes and do not rub your eyes. Please wear protective goggles during contact sports or if there is any risk of debris entering the eye.
  • Avoid make-up, especially at the sensitive area around the eyes.
  • Wear sun glasses outside at all times to alleviate eye irritation and/or a burning sensation in the eyes.

  • Normally the check-up appointment times would be post operative LASIK 1 day, 1 week, 1 month, 3 month, 6 month, 1 year and 2 year.