1Doughty MJ, Zaman ML. Human corneal thickness and its impact on intraocular pressure measures: a review and meta-analysis approach. Surv Ophthalmol, 2000,44:367-408.
2Bell JA, Charlton JF. www. emedicine, eom . Nebraska: eMedicine. com, Inc. Available from: http://www, emedicine, com/oph/topic578, htm.