Contact lenses are medical devices worn directly on the cornea of the eye. Like eyeglasses, contact lenses help to correct refractive errors and perform this function by adding or subtracting focusing power to the eye’s cornea and lens.
You can find your lens specifications on the side of your current contact lens box. All the essential information is printed on the side or back of every box. If you have different prescriptions for each eye always check the details for both your right and left eye.
It is not safe to sleep while wearing contact lenses. According to experts, sleeping with contacts increases your risk for a corneal infection, which is an infection of the clear layer protecting the colored part of your eye. … This risk occurs regardless of your lens type soft, hard, decorative, or prescription.