Chalazion forceps with a screw, such as the Ayer Chalazion Forceps FS5-1000 you mentioned, are surgical instruments used in ophthalmology for the treatment of chalazions. A chalazion is a small, non-infectious lump that forms on the eyelid due to the blockage of a meibomian gland. Meibomian glands secrete an oily substance that helps lubricate the eye.

The Ayer Chalazion Forceps are designed specifically for the removal of chalazions. The screw mechanism allows for controlled compression and securing of the chalazion during the procedure. The forceps are used to grasp the chalazion, and the screw is tightened to apply pressure to the affected area, facilitating the drainage or excision of the chalazion.

Ophthalmologists and eye surgeons may use these forceps in a minor surgical procedure to address chalazions and alleviate associated symptoms such as pain, swelling, and irritation. It’s important to note that the use of such instruments should be performed by trained medical professionals in a sterile and controlled environment. If you have concerns about a chalazion or any eye condition, it is recommended to consult with an eye care specialist for proper evaluation and treatment.