It seems that you have a healing ulcer and some element of corneal oedema. In addition to your current treatment, hypertonic saline drops can be added in the day with sodium chloride (NaCl) ointment at bedtime. Lid oedema may be giving the impression that the eye is smaller. This may be due to inflammation or an allergy to one of the drugs. The exact possibility will have to be checked by the treating ophthalmologist.