biostudies-literatureUnknown70(11)Rao RSMastering manual small-incision cataract surgery (MSICS) for beginner surgeons is difficult. In the initial days of residency or training, surgeons struggle to make a proper scleral tunnel and keratome entry. It commonly results in premature entry and iris prolapse. Most of the literature has shed light on premature entry during tunnel construction by a crescent blade, whereas a significant majority of iris prolapse happens due to improper keratome entry. This novel trypan blue dye-assisted tunnel staining (TBTS) technique helps in proper tunnel demarcation which can reduce the incidence of premature entry with a keratome.Indian journal of ophthalmology4041-4042https://www.ebi.ac.uk/biostudies/studies/S-EPMC9907307biostudies-literatureNovel tunnel staining technique to reduce premature entry in manual small-incision cataract surgery.PMC9907307Kalamkar CPatel BKRao RSMukherjee AfalseNovel tunnel staining technique to reduce premature entry in manual small-incision cataract surgery.Mastering manual small-incision cataract surgery (MSICS) for beginner surgeons is difficult. In the initial days of residency or training, surgeons struggle to make a proper scleral tunnel and keratome entry. It commonly results in premature entry and iris prolapse. Most of the literature has shed light on premature entry during tunnel construction by a crescent blade, whereas a significant majority of iris prolapse happens due to improper keratome entry. This novel trypan blue dye-assisted tunnel staining (TBTS) technique helps in proper tunnel demarcation which can reduce the incidence of premature entry with a keratome.2022-01-01T00:00:00Z2022 Nov2025-04-04T23:51:54.147Z2025-04-04T23:51:54.147ZS-EPMC99073073630815310.4103/ijo.IJO_1562_22