Keratoconus is a condition in which the cornea becomes thinner and bulge into a cone-like shape over time, eventually leading to blurred vision, photosensitivity, and decreased night vision. It usually affects one eye and then the other. Keratoconus starts at the age of 10 to 20 (second decade of life) and lasts until the age of 30. The progression of the disease varies from person to person and cannot be estimated. The disease severity can be determined by an ophthalmologist after photographing and examining.
Genetic factors, rubbing the eyes, and prolonged use of contact lenses are among the causes introduced for this disorder. The treatment of keratoconus depends on its severity. At first, hard lens may be prescribed and there is no need to use glasses, but if the patient is at the earlier stages, UV cross-linking can be used to prevent the disease progression. In advanced cases, surgical methods and intraocular rings should be used, which eventually should be followed by corneal transplantation.
Preoperative Instructions
- Take a bath the night before surgery.
- Avoid using perfumes and cosmetics around the eyes.
- Avoid using soft lenses for at least 3 days and hard lenses for 3 weeks before surgery.
- Tell your doctor if you have any allergies.
Intraoperative Instructions
Note that these surgeries are painless and your cooperation plays a very important role in achieving the right result. So stay calm and follow your doctor’s instructions during surgery.
- Look at the flashing green light and avoid moving your eyes and head during the operation.
- Depending on the type of laser used, the surgery duration is about 20 seconds. Therefore, do not move your eyes during the time you hear the laser beam.
- Don’t worry about blinking during the procedure because your eyelids are kept open by a device. Avoid squeezing and frowning during the operation.
- Do not bring your hands close to the operating area as it can result in contaminate.
Postoperative Instructions
- Avoid rubbing your eyes.
- Wear sunglasses when exposed to sunlight.
- Don’t wash your eyes in the first few days.
- Avoid swimming for up to a month.
- Use painkillers in case of minor pain.
- If necessary, drive a few days after the operation with complete caution.
- Avoid putting pressure on your eyes in the first few weeks.
