<prompt> Keratometer is used to assess:Thickness of corneaRefractive powerAstigmatismCurvature of cornea  <response>: Ans. d Curvature of corneaRef.: A.K. Khurana 6th ed. 1575Few Instruments Which are Used for Ocular ExaminationMeasurement parameterInstrumentsfor: Corneal thicknessPachymeta Corneal curvatureKeratometer Angle of anterior chamberGonioscope Corneal surfacePlacido disc Corneal endotheliumSpecular microscope Direct ophthalmoscopeRoutine fundus examination. Image formed is Erect and Virtual and magnified15 times Rememberd as: DEV Indirect ophthalmoscopeFor assessment of retinal detachment and other peripheral retinal lesions. The image is real, inverted and magnified 5 times. PerimetryOptic nerve function 