Final answer:
During ophthalmic procedures, sterile solutions such as saline are used to keep the cornea moist, and antiseptic solutions like diluted povidone-iodine are used to cleanse the operative site. Substances like Kimwipes or lens paper are utilized for precise cleaning without causing damage.
Step-by-step explanation:
The question pertains to what substances are employed during ophthalmic procedures both to cleanse the operative site and keep the cornea moist. Sterile solutions like saline are typically used to maintain moisture on the cornea during various ophthalmic procedures. The cornea must be kept moist to ensure tissue health and clarity for the procedure. To cleanse the operative area, substances such as antiseptic solutions can be used. Care is taken to use substances that are non-irritating and safe for the eyes, such as diluted povidone-iodine. Additionally, Kimwipes and/or lens paper may be used to gently wipe the area without leaving debris that could compromise the surgical field or damage the delicate ocular tissues. Maintaining a sterile field and keeping the cornea moist are crucial for the success of procedures like Laser in situ Keratomileusis (LASIK), during which precise cuts and ablation of corneal tissue are performed using an excimer laser.