IAPB NEWS, Number 15, International Agency for the Prevention of Blindness, 1991

Sheffield VM, "Getting the Eye Care Message Across", IAPB News, Number 15

British Journal of Ophthalmology 1991;75:713-714

Lewallen S, Courtright P. Anatomical factors influencing development of trichiasis and entropion in trachoma.

World Health Organization, 1991

Sheffield VM, "Public Awareness and Health Education", Report of the Task Force Meeting on "Strategies for Ivermectin Distribution through Primary Health Care Systems"

Refractive & corneal surgery 7 6 (1991): 443-5.

Schwab, Larry. “Penetrating keratoplasty is an inappropriate procedure for underserved populations in developing countries.”

Refractive and Corneal Surgery, Volume 7, Iss. 6, Slack Inc, Nov/Dec 1991

Sheffield VM, "The International Eye Foundation and Corneal Blindness: A Historical Perspective"

International Ophthalmology 1991;15:295-298

Courtright P, Lewallen S, Lee HS. Comparison of the old and new W.H.O. leprosy disability grading scheme for ocular disabilities.

Archives of Ophthalmology 1991;109:1029-1031

Lewallen S, Courtright P. Ophthalmology in Ethiopia.

British Journal of Ophthalmology 1991;75:322-325

Courtright P, Sheppard J, Lane S, Sadek A, Schachter J, Dawson CR. Latrine ownership as a protective factor in inflammatory trachoma in Egypt.

1991: Geneva, Switzerland‎ & WHO Programme for the Prevention of Blindness. 1991)

Meeting on Strategies for Ivermectin Distribution through Primary Health Care Systems

Arch Ophthalmol. 1991;109(4):584–589. doi:10.1001/archopht.1991.01080040152048

Brilliant GE, Lepkowski JM, Zurita B, Thulasiraj RD. Social Determinants of Cataract Surgery Utilization in South India.