Lasik & Refractive

REFRACTIVE SURGERIES AND LASIK

Refractive surgery is a power correction surgery used to correct refractive errors, LASIK eye surgery is a treatment that reshapes the cornea in order to produce clear vision. Enabling the patient to lead a spectacle-free life. It is generally carried out as an outpatient procedure and it takes 5-10 minutes per eye. The LASIK refractive eye surgery procedure can treat myopia (nearsightedness), hyperopia (farsightedness), and astigmatism, and reduce the patient’s dependency on contact lenses and glasses. Refractive errors impede the focusing ability of the eye, and patients who suffer from these conditions experience blurred vision. LASIK eye surgery provides these individuals with an effective treatment option, where a predetermined amount of corneal tissue is ablated. In Lasik, the corneal surface is reshaped using a laser beam. It corrects vision by altering the refractive power of the eye by a calculated change in the corneal curvature. This reshaping of the cornea improves the eye’s focusing power and enhances patients’ visual acuity. DR.AEH Provide customized laser vision correction with the most advanced diagnostics, intensive pre-operative assessment state-of-the-art OT infrastructure meticulous post-operative care at the hands of well-experienced surgeons which makes DR.ANIL KUMAR HOSPITAL the most preferred centre for refractive surgeries.

TYPES OF REFRACTIVE ERRORS

Myopia

Hyperopia

Astigmatism

Presbyopia

What are the various tests done before Lasik/Customized Lasik?

Refractive Procedure Is a Highly Sophisticated And Sensitive Treatment. An intense Preoperative Evaluation is required To Find Out Whether You Are Eligible For a particular refractive procedure or, More Aptly Which Procedure Is Suitable For Your Present Refractive Error [ Glass Power ], Corneal Thickness and Curvature, General Eye Health Presence Of Dry Eyes, Meibomitis, and Frequency of Style All are Taken into Consideration While Deciding Your Eligibility to Undergo a Particular Refractive [ Power Correction ] Procedure.

You should

1. 18 years or older 2. Have healthy eyes, not suffering from dry eyes 3. Your eye power must be stable for at least 6 months before surgery 4. And you must not be pregnant or breastfeeding. 5. Do not forget to mention any other medical conditions you have or any medications you might be taking.

Pre Operative Evauation Includes :

Working with you, we will develop a targeted treatment strategy based on the findings of your testing. To help you select the refractive procedure that best fits your particular requirements and way of life, we’ll go over the various options available.

It’s also an excellent opportunity to mention any worries or inquiries you may have. We want you to feel at ease and fully informed throughout the procedure

Mostly done one day before the procedure

Evaluation may require a minimum time of 1 to 2 hours

1. Spectacle Power Assessment 2. Corneal Topography Using Sirius Topography / Pentacam 3. Pupilography 4. Anterior Segment OCT 5. Tear Film Analysis 6. Peripheral Retinal Examination By Doing IDO

Understanding Treatment OptionsPRK

Advanced PRK. Firstly, medications are now used to prevent potential corneal haze, along with NSAID analgesic eyedrops to eliminate post-op discomfort. Furthermore, the excimer laser sculpting process is performed with accurate eye tracking systems, and with the use of “flying-spot” laser sculpting technology, uneven ablation issues are no longer a concern. High oxygen permeability contact lenses are now placed over the treated cornea surface to greatly speed up the healing process such that in just one week, patients can see well enough to go back to work and even resume sport activities.

TransPRK (Transepithelial Photorefractive Keratectomy)

TransPRK (transepithelial photorefractive keratectomy) is an advanced touch-free laser refractive surgery that involves the removal of the epithelium of the eye, It is one of the quickest vision correction procedures and is preferred over LASIK surgery by many as it eliminates the risk of potential flap complications and is suitable even for those with thin corneas and high myopia.TransPRK has the benefit of having no surgical instruments touching the cornea. This makes the procedure less scary and more comfortable for the patient. Here, the surface epithelium cells are removed using the excimer laser itself.

TransPRK is a simple and seamless procedure that involves the following steps:

1. Application of numbing eye drops
2. Removal of surface epithelium cells
3. Reshaping of corneal curvature
4. Application of bandage contact lens

ADVANCED OF T – PRK

1. No cutting of a cornea flap or Lenticule 2. Least worry of procedure-induced dry eye 3. Wider range of suitability 4. Great for contact sports and active lifestyles

Phototherapeutic keratectomy (PTK)

Laser eye surgery that treats corneal surface irregularities and diseases CONDITIONS TREATED PTK is used to treat conditions such as corneal scars, dystrophy, epithelial erosion syndrome, bullous keratopathy, and spheroidal degeneration.

WHAT TO EXPECT AFTER PROCEDURE After surgery, you may experience discomfort, pain, glare sensitivity, and haloes around lights. You’ll need to wear a plastic shield to protect your eyes from rubbing while you sleep. Your eyesight will be blurry for the first seven days after surgery, but it should improve over time. You should plan to take a few days off from work to recover.

Wavefront Lasik

LASIK is an excellent refractive surgery option for those seeking greater visual freedom and reducing their dependence on visual aids.In Wavefront-guided Lasik, Optical aberrations (imperfections) inherent in the eye are also corrected. Conventional Lasik can only correct the spectacle power & not these subtle optical aberrations. With Wavefront-guided Lasik, reducing these aberrations and enhancing vision much above normal levels is now possible. This is also referred to as Custom Lasik / Zyoptix or Opti Lasik

Femtosecond Lasik

Femtosecond Lasik Also called Bladeless LASIK or Blade free LASIK, is An ultra-fast femtosecond laserI is used to create a thin flap on the surface of the eye, Excimer laser to reshape the underlying corneal tissue to correct your vision. This flap or the door, is then returned to its original position, and your eyes heal on their own.

Implantable Contact Lens

ICL is a high-tech yet simple way of correcting your refractive error. Don’t be disappointed if your doctor has denied the Lasik procedure for your eyes. The following information gives you the reassurance that you can still enjoy life without the constraints and restrictions of spectacles or contact lenses. No more problems with playing, jogging, or swimming! is a power-correcting refractive procedure, but unlike traditional contact lenses, these are surgically placed inside the eyes. They are implanted between the iris and the natural lens. An ICL is made from Collamer,[PURIFIED COLLAGEN] which is a biocompatible material. It is a combination of collagen and polymer. This does not cause any side effects or discomfort

ADVANTAGES

Implantable contact lens (ICL) surgery is an effective, safe, and quick procedure that permanently corrects a patient’s vision. The procedure only takes around 15 minutes and involves placing a lens between a person’s iris and lens without damaging the corneal tissue. Due to the ease of the procedure, healing time is very fast.

The quality of vision achieved with ICLs is excellent since the eye maintains its natural corneal shape.

Corneal surface is not touched during procedure hence procedure does not lead to dry eyes.

User-friendly as they require no maintenance such as disinfecting or cleaning. They do not need to be removed daily and can stay in the eye indefinitely.

The procedure is reversible

This is a very good option for people who cannot undergo LASIK surgery due to large pupils, irregular corneas, or very high prescriptions.

What Is Toric ICL?

The Toric ICL is only a variant of ICL. It corrects your myiopisaas well as your astigmatism (cylindrical power) in one single procedure. Each lens is custom made to meet the needs of each individual eye.

Understanding the procedure

The ICL surgery procedure itself is a relatively quick and painless process. It involves the precise implantation of the ICL lens to correct your vision. The surgery typically takes only about 15 to 30 minutes To make sure every detail went as planned and you’re comfortably on your path to recovery, we’ll perform an instant post-surgery examination after the procedure

Collagen Cross Linking

In this condition, the front part of your eye, called the cornea, thins out and gets weaker over time. This makes it bulge into a cone shape, which can distort your vision and make it hard to see. If the symptoms of keratoconus get severe, you will need a corneal transplant. Collagen cross-linking (CXL) involves the application of Vitamin-B solution to the cornea, followed by exposure of the cornea to low-dose ultraviolet. This induces collagen fibrils to thicken, stiffen, and Re-attach i.e. CROSSLINK to each other creating new bonds between the adjacent collagen molecules leading to an increase in rigidity.

CXL is the only procedure that stops the progression of corneal ectasia. This helps in stable fitting for contact lenses and glasses and most importantly to delay and in many cases avoid a corneal transplant. In corneal cross-linking, doctors use eyedrop medication and ultraviolet (UV) light from a special machine to make the tissues in your cornea stronger. The goal is to keep the cornea from bulging more. It’s called “cross-linking” because it adds bonds between the collagen fibres in your eye. They work like support beams to help the cornea stay stable. Corneal cross-linking is the only treatment that can stop progressive keratoconus from getting worse. It may help you avoid a corneal transplant, which is a major surgery.