To assess the outcome of lateral tarsal strip (LTS) for the involutional entropion and ectropion. Materials and Methods: A quasi study was carried out in a tertiary eye hospital of Dhaka, Bangladesh, between January 2013 and December 2020. This study included all patients who underwent lateral tarsal strip (LTS) procedure for the correction of involutional entropion and ectropion. Group A patients were presented with involutional entropion and group B patients were presented with involutional ectropion. We assessed surgical outcome and postoperative complications. Results: Out of 48 lower eyelids marginal malposition of 43 patients were studied in this study and 5 cases were presented bilateral lower lid marginal malposition. Lateral tarsal strip (LTS) procedure was a unique procedure to correct the involutional entropion (24 eyelids 50%), involutional ectropion (24 eyelids 50%), involving the lower eyelid. The male to female ratio was almost 2.6:1. The mean age was 68.49 years with 54 years to 90 years age range. The surgical correction was satisfactory in 95.9%, and 91.7% of lower eyelids involutional entropion, and involutional ectropion respectively. Conclusions: Lateral tarsal strip (LTS) is a unique procedure to achieve better cosmetic and functional outcome for the correction involutional eyelid marginal malposition (entropion, and ectropion).