WHEN IS A LASER EYE SURGERY CONDUCTED?
A laser eye surgery is performed through a five-way process. First, the patient is taken through some pre-operative stages. Once the initial examinations and observations are found to be satisfactory from the clinical point of view, the laser eye surgery is begun. THE PRE-OPERATIVE STAGES OF A LASER EYE SURGERY The ophthalmologist first examines the patients cornea to determine its thickness. This examination is carried out with the help of an instrument called the pachymeter. Then, the surface contour of the cornea is measured with another instrument known as the topographer. This clinical instrument uses lower-power lasers to draw a topographic map of the examined cornea. This examination is crucial as it detects all forms of irregularities (like astigmatism) in the shape of the eye particularly the cornea. This feedback provides the surgeon the data that help him to measure exactly how much of the tissue in the cornea should be removed. This map also aids the surgeon to pinpoint the
