Nurse has to apply erythromycin ointment to a newborn child. Which area of eye she is supposed to place it?

Correct option is C

When applying ophthalmic ointments like erythromycin in neonates (often to prevent ophthalmia neonatorum), the correct technique is to pull down the lower eyelid and place the ointment in the lower conjunctival sac, avoiding direct contact with the cornea.
Explanation of each option: • (a) On the cornea – Incorrect and unsafe. Applying directly on the cornea may damage the eye and cause discomfort or blurred vision. • (b) Under the eyelid – Vague. The specific target is the conjunctival sac, not the general underside of the eyelid. • (c) Lower conjunctiva – Correct. This is the standard and safe area to apply eye ointment in both newborns and adults, ensuring even distribution and absorption. • (d) Upper conjunctiva – Rarely accessed for ointment application. Pulling up the upper lid is more difficult and may cause blinking or injury.