PRK- Photorefractive Keratectomy was the initial technique that associated applying lasers to correct eyesight difficulties. It can help to treat myopia, astigmatism, and presbyopia but not hyperopia. It can be encouraged not to study, create, or use Digital equipment like a pc or cellphone thirty minutes just before the exam. https://mysitesname.com/story10859814/top-guidelines-of-lasik-treatment-in-gurgaon