Terms and Conditions

Last updated: 9 October 2026

This site is operated by QUILLSTONE DIGITAL LLC, 1057 NW 136TH AVE, Miami, FL 33182, United States, trading as Studio Facile. You can reach us at info@studiofacilebook.com and we answer within 24 hours on working days.

What we sell

Illustrated study material for ophthalmic assistants and students in the United States, delivered as downloadable PDF files. Nothing is shipped physically.

This is study material, not a course, a certification or a guarantee. It does not replace the ophthalmologist, your training or your clinic's protocols, it gives no medication doses, it does not certify anyone and it cannot guarantee passing the COA exam. It is not affiliated with or endorsed by IJCAHPO (JCAHPO). The practice questions were written for this material; they are not official exam questions.

Your purchase

One payment. There is no subscription and no recurring charge.
Payment is processed by Stripe. We never see or store your card number.
The download link is emailed to the address you enter at checkout, normally within a few minutes.

What you may and may not do with the files

You may read the files on your own devices and print them as often as you want for your own use. You may not resell them, share them publicly, upload them to file-sharing sites or distribute them to third parties.

Refunds

See the refund policy.

Liability

We take care that the content is accurate and based on recognized sources (the IJCAHPO content areas as a concept, the American Academy of Ophthalmology, the National Eye Institute and the CDC). Even so, the material is educational: always follow the doctor, your supervisor and your clinic's protocols. Medicines are used only on the doctor's order. To the extent allowed by law, our liability is limited to what you paid.

Changes and governing law

We may update these terms; the date at the top shows when. These terms are governed by the laws of the State of Florida, United States.