Table 3 Interview excerpts supporting key factors related to the ‘Skill’ category

6. Handling / insertion and removal of the CL

6.1 Practical learning to insert the CL ***

6.2. Practical learning to remove the CL ***

6.3 Practical learning how to wash the hands ***

6.4 Practical learning how to wash the CL ***

1. “I had trouble putting my lens in, so I stopped using the lens for a while. It took me about 45 min to an hour to put the lens in. I searched YouTube for insertion, but I did not learn.”(P12)

2. “It was difficult for me to remove the lens. My wife helped me remove the lens. I thought that it is very easy to put in and take out the lens, but it was not. It took me a long time to learn.” (P23)

3. “The principles of proper hand washing should be educated. CLWs should learn how to use normal saline after washing with tap water. They have to learn whether to use soap or hand washing liquid, whether hand washing is sufficient or disinfection is also needed.”(P22)

4. “Fat and protein settle on the surface of the lens, so it becomes dirty over time. Dirty lenses can damage the eyes. Patients should learn to wash their lenses with a special solution and normal saline after each use according to explanations. Every once in a while, they have to clean the lens surface with special pads and a diluted bleach solution.”(P30)

7. Stabilization of learned information

7.1 Practice and repeat insertion and removal of the CL after the first learning *

7.2 Repetition of information *

7.3 Learning through video *

1. “After practical training of insertion and removal of the lens in the clinic, when I wanted to repeat this training again at home, I had trouble doing this process. I realized how to do it after putting in and taking out lenses several times.”(P9)

2. “Because of the low time in the clinic, it was better that the information about the lens was repeated for me. I fully concentrated on how to remove the lens and did not understand the rest of the content about hygiene, washing and so on.”(P1)

3. “After taking the lens, I was looking for more tutorials. I read texts about lenses from the Internet, and each of them explained different principles step by step. I learned all the content but did not help me. I was looking for videos. Videos are much better for learning. Videos should be made on various lens topics due to their few numbers.”(P8)