Following cataract surgery, the main concerns are reducing inflammation and preventing infection.
Steroid is a preferred choice of treatment for post-op inflammation due to its increased potency and reduced likelihood of side effects. The use of steroid is tapered over weeks, as sudden stoppage may cause rebound inflammation. If you do not use or complete the course of steroid, uncontrolled post-op inflammation can occur and lead to undesirable outcomes including corneal haze and swelling, and retinal swelling (for example cystoid macular edema). These conditions can cause blurring of vision which is sometimes accompanied by redness, tenderness and pain. If left untreated, it may lead to loss of vision.
Hence, it is strongly advisable to follow your surgeon’s post-op medication instructions strictly.