My Mother Had Cataract Surgery And Three Months Later The

My mother had cataract surgery and three months later the doctor said he did not get it all and did a procedure in his office. After that procedure my mother states that they did an eye exam to order her glasses. Now which is about 4 months past the second procedure, she has worse vision and is unable to read print and complains of pain in her eyes(like something is in her eye). Do you know what may be the problem, because we have a follow up appointment with the doctor next week.