**Question:** Refractive surgeries for Myopia are all except

A. Phakic IOL implantation
B. LASIK
C. PRK
D. Cataract surgery

**Core Concept:** Refractive surgeries are a group of surgical procedures designed to correct refractive errors like myopia (nearsightedness), hyperopia (farsightedness), and astigmatism. These surgeries aim to reshape the cornea or adjust the power of the eye to focus light more accurately on the retina, thereby improving vision.

**Why the Correct Answer is Right:** Cataract surgery is primarily aimed at removing a cloudy lens (cataract) and replacing it with an artificial lens (intraocular lens, IOL) to improve visual acuity. This procedure is not specifically designed to correct refractive errors like myopia.

**Why Each Wrong Option is Incorrect:**

A. Phakic IOL implantation: This option is incorrect because it involves the insertion of an intraocular lens (IOL) into the eye to correct refractive errors. Phakic IOL implantation is a valid option for myopia correction among refractive surgeries.

B. LASIK (Laser-Assisted In Situ Keratomileusis): LASIK is a laser eye surgery that reshapes the cornea to correct refractive errors. It is a valid option for myopia correction.

C. PRK (Photorefractive Keratectomy): PRK is another laser eye surgery that modifies the corneal surface to correct refractive errors. It is a valid option for myopia correction.

**Clinical Pearl:** Myopic patients often have a longer axial length and thinner cornea, making them more prone to post-operative complications like visual disturbances and corneal ectasia (irregular corneal thinning). Hence, surgeons must meticulously evaluate the patient's preoperative status and choose the appropriate surgical technique, including the choice of laser (e.g., PRK or LASIK) and the timing of surgery (e.g., either pre- or post-pupillary dilation). This ensures the best possible outcome for myopia correction and minimizes potential complications.