FOR YOUR EYES ONLY, INC. - A chalazion is a swollen bump on the eyelid. It happens when the eyelid's oil gland clogs up. It may start as an internal hordeolum (stye).
Chalazion
Eyedolatry: There's a Bump on My Eyelid: Molluscum Contagiosum
Eyelid Lumps and Bumps | Dr. Cutler Peck
What Is a Chalazion (Bump on Eyelid)?
Eyelid cysts – BOPSS :
What Is the Difference Between a Stye and a Chalazion? Causes, Symptoms, Treatment - American Academy of Ophthalmology
What Is the Difference Between a Stye and a Chalazion? Causes, Symptoms, Treatment - American Academy of Ophthalmology
Internal styes: How to identify and treatment options
What Are Milia—and How Do You Get Rid of Them? -Dermatology Blog
How to Get Rid of a Pimple or Bump on the Eyelid: Causes & Treatment | MyVision.org
Styes and Chalazia (Bumps on Eyelid)
Stye - NHS
Internal Stye: Symptoms, Causes & Treatment
Woman shares shocking moment she pops giant spot under eyelid | indy100
Eyelid Bumps 101: How to Identify Styes, Milia & Pimples | Allure
Help with spot on sons eyelid *with picture* | Mumsnet
Stye (Hordeolum) - Symptoms and Causes | Penn Medicine