Aim: The study aims to evaluate the relationship between corneal astigmatism and the morphology of pterygium using Anterior Segment Optical Coherence Tomography (AS-OCT). Methods: The pterygium was measured manually for its horizontal width and vertical length. The area and how much it extends onto the cornea (% extension) were also calculated. Anterior corneal astigmatism, and the principal meridians (K1 and K2) were measured. The pterygium's morphology was examined with ASOCT, identifying two patterns based on how far the pterygium extends under the corneal surface: continuous and nodular. The study analyzed how anterior corneal astigmatism relates to the size, percentage extension, and shape of the pterygium. Results: The study involved 80 patients (50 males and 30 females) with an average age of 55.01 years. Of these, 60% were from rural areas and 40% from urban areas. pterygium morphology and found that 47.5% had a continuous growth pattern, while 52.5% had a nodular pattern. The average best-corrected visual acuity (BCVA) was 0.4411. The mean horizontal width of the pterygium was 0.3450 mm, and the vertical length was 0.3163 mm, with an average percentage extension of 24.1%. The mean anterior corneal astigmatism was 2.2926, in continuous(2.8995) in nodular group(2.4076),and (p=0.02). Conclusion: Although not statistically significant, it highlights that continuous pterygium growth is associated with greater anterior corneal astigmatism compared to the nodular type, emphasizing the importance of pterygium morphology.