<prompt> In a 2-year-old child refractive error test is done with:1 atropine ointment1 atropine eye dropTropicamide 0.5Eucatropine 5  <response>: Ref: K.D. Tripathi 8th ed. P 131Atropine 1 ointment is preferred for refractive error test in children below 5 years. It is applied 24 hours and 2 hours before the procedure.The shorter acting agents like homatropine, tropicamide and cyclopentolate does not produce effective cycloplegia in children ciliary muscle tone of child is highOintment is preferred over eye drop as there is increased risk of systemic absorption of eye drop which can cause anticholinergic side effect in child. Example: Hyperthermia, decreased secretion, tachycardia etc.Cycloplegic agent of choice is adultelderly: Tropicamide. The protein binding of esmolol is 55.For only fundoscopymydriasis, preferred agent is: Phenylephrine Sympathomimetic 