Blurred vision after surgery is not normal, but it happens at a high frequency, according to PubMed. Among 671 patients studied in 2002, 28 patients experience blurred vision after surgery.
Patients studied went through a variety of surgical procedures. Among those, seven patients required new corrective lenses or contacts, PubMed reports. Although the study concludes that no significant risk factors were identified, about 25 percent of the patients required routine visits to an eye care provider.
Later studies based on surgical procedures related to the heart, neck, back, spine and head show some patients experienced postoperative vision loss or blindness, which is rare, notes a 2012 study published on PubMed Central.