Visual Experiences During Vitreous Surgery Under Regional Anesthesia: A Multicenter Study

Reply to Stanga and Muqit, and YiJun Hu

“…Although in this cohort only 2 (2.7%) patients were frightened by their visual perceptions, it is important to note that there is considerable variation in the proportion of patients who are frightened by their intraoperative visual sensations, ranging from 5.9 to 13.8%. 2,3 The variation in the proportion of patients frightened is similar to that described during cataract surgery, which ranges from 3 to 19.4%. 4 There are many possible reasons for this variation between studies, including cultural differences, as well as the previous operative experience of the patients.…”

Acquired Brown's syndrome following cosmetic blepharoplasty

“…5 A key difference is that all these studies reported the visual perceptions experienced intraoperativelyFthat is, during the surgery itself. [2][3][4][5] Thus, any unusual or additional visual experiences reported could quite justifiably be attributed to the surgical procedure itself. For the current study, the cause of the visual perceptions at the 2-week interview may not be so clear.…”

“…Their study addresses an important subject that is of interest to both healthcare professionals and patients, especially in view of the increasing number of intravitreal injections being performed to treat an expanding array of ocular pathologies. The authors cited previous studies describing the visual experiences of patients undergoing various ophthalmic surgeries such as cataract extraction, 2 vitrectomy, 3,4 and glaucoma filtration surgery. 5 A key difference is that all these studies reported the visual perceptions experienced intraoperativelyFthat is, during the surgery itself.…”

Images created in a model eye during simulated cataract surgery can be the basis for images perceived by patients during cataract surgery

“…[1][2][3][4][5][6][7][8][9][10] The visual sensations include flashing white or colored lights, movement of objects and instruments, and the surgeon's fingers or hands. [1][2][3][4][5] About 60% of the patients who reported seeing movements or moving objects also saw objects that resembled surgical instruments.…”