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What is Corneal curvature measured by ? and explain in detail?
Ans. is 'a' i.e., Keratometry The `Keratometry' or `ophthalmometry' is an objective mehod of estimating the corneal astigmatism by measuring the curvature of central cornea. Gonioscopy - Biomicroscopic examination of the angle of anterior chamber. Perimetry - Procedure of estimating the extent of visual fields. Tonography - Non - invasive technique for determining the facility of aqeous outflow (C - value).