Step 1:
Patient registration: The camp team, composed of ophthalmologists and paramedical staff, proceed to the campsite. With support from camp sponsors, local volunteers (usually students with legible handwriting) record the patient details - name, age and address - in the OP register and case sheet. Patients are given identity cards, which may be used for any future follow-up.

Step 2:
Preliminary vision testing: Preliminary vision testing is performed by ophthalmic assistants. Vision charts, such as the Snellen (in the local language) and E type charts, are used.

Step 3:
Preliminary diagnostic examination: Doctors perform the preliminary examination. Clinical conditions such as external eye infections, vision loss caused by nutritional deficiency and the incurably blind are examined.

Step 4:
Tension and duct examination: Patients above the age of 40 have their intraocular pressure tested. Trained ophthalmic assistants administer topical anaesthetic drops and measure the intraocular pressure with a Schiotz tonometer. Facilities for the patients to lie on, additional benches for waiting patients, and adequate lighting are necessary.

Step 5:
Refraction: Refraction is performed on patients who exhibit refractive errors, presbyopia, outdated glasses, or aphakia. This process occurs in a simple, prefabricated, dark cubicle which is equipped with one or more foldaway partitions, trial lens sets, and mirrors. Well-trained ophthalmic technicians refract while volunteers control the patient flow.

Step 6:
Final examination: Senior doctors evaluate the test findings, perform the final examination, review the patient records, make the final diagnoses and prescribe treatment. (In a small camp, one doctor conducts both the preliminary and the final examinations.) Patients advised for surgery are motivated by the counsellor to undergo surgery at the hospital.

Step 7:
Optical Shop - Sales persons and technicians from optical division also attend the screening camp. Patients advised to wear glasses may purchase ready-made spectacles, if available. Otherwise, the optician finishes the lens on a grinding machine, mounts the lens in the frames chosen by the patient, and delivers the finished spectacles to the patient at the same camp site.

Step 8:
Counselling & IP Administration - Patients counselled at the campsite are registered in IP register and transported to the base hospital for surgery. These patients receive surgery, postoperative care, meals, and round-trip transportation all free of cost.
Camp sponsors are communicated the results of camp, viz., patients screened, number of surgeries performed, patient discharged etc.