###Human: Is it normal to observe light spreading out on seeing bulb after wearing Toric lens? ###Assistant: Hi. From the information you have given, your vision prescription is -4. You have not specified whether it is a spherical, cylindrical, or a compound power. You are also using a Toric contact lens, for the first time. The reason for seeing light spreading can be due to a faulty fitting contact lens, because, the Toric lens has to be perfectly fitting, since they carry an axis power. The other reason could due to corneal edema, again due to a faulty fitting contact lens. Take care.