REFERENCES
- Hirst LW. Distribution, risk factors, and epidemiology of pterygium. In: Taylor HR ed. Pterygium. The Hague : Kugler Publications, 2000.
- Panchapakesan J, Hourihan F, Mitchell P. Prevalence of pterygium and pinguecula: the Blue Mountains Eye Study. Ausil NZ J Ophthalmol 1998: 26: S2–5.
- Lin A, Stern G. Correlation between ptery‐gium size and induced corneal astigmatism. Cornea 1998: 17: 28–30.
- Kanski J. Clinical Ophthalmology, 4th ed. London : Butterworth‐Heinemann, 1999:83.
- Poirier RH. The corneal limbus. In: Leibowitz HM ed. Corneal Disorders: Clinical Diagnosis and Management. Philadelphia : WB Saunders Co, 1984.
- Stern G, Lin A. Effect of pterygium excision on induced corneal topographic abnormalities. Cornea 1998: 17: 23–27.
- Twelker JD, Bailey IL. Clinical evaluation of pterygium. In: Taylor HR ed. Pterygium. The Hague : Kugler Publications, 2000.
- Pavilack MA, Halpern BL. Corneal topographic changes induced by pterygia. J Refract Surg 1995; 11: 92–95.
- Buratto L. Corneal Topography: The Clinical Atlas. New Jersey : SLACK incorporated, 1996: 507.
- Oldenburg JB, Garbus J, Mcdonnell JM, Mcdonnell PJ. Conjunctival pterygium: mechanisms of corneal topographic changes. Cornea 1990: 9: 200–204.
- Fong KS, Balakrishnan V, Chee SP, Tan DTH. Refractive change following pterygium surgery. CLAO J 1998: 24: 115–117.