Refractive Surgery
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Introduction
Laser refractive surgery is a safe and effective procedure aimed at correcting refractive errors. This surgical procedure utilizes advanced laser technology to reshape the cornea, improving vision and reducing or eliminating the need for glasses or contact lenses.
Types of Laser Refractive Surgery
LASIK (Laser-assisted in situ keratomileusis):
- A femtosecond laser creates a thin, precise flap in the outer corneal layer.
- An excimer laser reshapes the underlying corneal tissue by removing a specific amount of tissue with high precision.
- The flap is then gently repositioned and adheres naturally without stitches.
- Offers the fastest visual recovery among refractive procedures.
PRK (Photorefractive keratectomy) / Advanced Surface Ablation:
- The epithelium (cornea's surface layer) is removed using a laser(Streamlight PRK).
- The excimer laser ablates corneal tissue directly to reshape the cornea.
- A bandage contact lens is placed to protect the healing surface.
- May be preferable for some patients with thin corneas who are not candidates for LASIK.
- Slower recovery time compared to LASIK, with initial discomfort.
SMILE (Small Incision Lenticule Extraction)
- A femtosecond laser creates a disc-shaped lenticule within the corneal stroma (middle layer).
- A small incision is made in the cornea, and the lenticule is removed through this incision.
- The remaining corneal tissue reshapes naturally, correcting the vision.
- Minimally invasive with less disruption to corneal tissue compared to LASIK.
- Quicker visual recovery than PRK.
Phakic IOL (ICL)
- A customized intra ocular lens (phakic IOL) designed to correct refractive errors which are not amenable to laser refractive surgery
- This phakic IOL is placed inside the eye in front of the natural lens via a small incision
Candidacy for Refractive Surgery
Not everyone is a suitable candidate for laser refractive surgery. Your eye surgeon will determine your eligibility based on factors such as your age, prescription stability, corneal thickness, and overall eye health. Laser refractive surgery offers a safe and effective solution for correcting refractive errors and achieving clearer vision. By understanding the procedure, its benefits, and potential risks, you can make an informed decision about whether laser refractive surgery is the right option for you. Your eye surgeon will guide you through the process, from preoperative evaluation to postoperative care, ensuring the best possible outcome for your vision.
If you have any further questions or concerns about laser refractive surgery, don’t hesitate to discuss them with your eye specialist Dr Kavita Rao
