Table 1.
Search process and number of articles retrieved
| Search engine | Search terms | Number of articles retrieved | Number met inclusion criteria |
|---|---|---|---|
| PubMed | S1, S3 | 47 | 41 |
| PubMed | S1, S4 | 36 | 35 |
| PubMed | S1, S5 | 36 | 33 |
| PubMed | S1, S6 | 29 | 28 |
| PubMed | S2, S3 | 13 | 12 |
| PubMed | S2, S4 | 2 | 1 |
| PubMed | S2, S5 | 13 | 11 |
| PubMed | S2, S6 | 7 | 7 |
| OVID, Scopus, Springer Books, Cochrane Library | S1, S3 | 105 | 68 |
| OVID, Scopus, Springer Books, Cochrane Library | S1, S4 | 85 | 54 |
| OVID, Scopus, Springer Books, Cochrane Library | S1, S5 | 54 | 27 |
| OVID, Scopus, Springer Books, Cochrane Library | S1, S6 | 65 | 36 |
| OVID, Scopus, Springer Books, Cochrane Library | S2, S3 | 26 | 15 |
| OVID, Scopus, Springer Books, Cochrane Library | S2, S4 | 24 | 12 |
| OVID, Scopus, Springer Books, Cochrane Library | S2, S5 | 27 | 12 |
| OVID, Scopus, Springer Books, Cochrane Library | S2, S6 | 25 | 9 |
Search terms abbreviations: S1, LipiFlow treatment; S2, vectored thermal pulsation therapy; S3, meibomian gland dysfunction; S4, MGD; S5, dry eye disease; S6, ocular surface disease