TY - JOUR
T1 - Removal of viscoelastic materials after experimental cataract surgery in vitro
AU - Assia, Ehud I.
AU - Apple, David J.
AU - Lim, Edward S.
AU - Morgan, Robin C.
AU - Tsai, Julie C.
N1 - Funding Information:
Supported in part by an unrestricted grant from the Research to Prevent Blindness, Inc., New York.
PY - 1992
Y1 - 1992
N2 - The one significant complication of viscoelastic materials is that they may cause postoperative intraocular pressure rise. We investigated the rate and ease of removal of various viscoelastics using the Miyake video technique. Five viscoelastics were investigated: sodium hyaluronate (Healon®), Healon GV®, chondroitin sulfate. sodium hyaluronate (Viscoat®), hydroxypropylmethylcellulose (Occucoat®), and polyacrylamide (Orcolon®). The viscoelastics were dyed with fluorescein and, after filling the capsular bag with a viscoelastic material, a posterior chamber intraocular lens (IOL) was implanted. The viscoelastic was then aspirated using an automated irrigation/aspiration device. Healon and Healon GV were completely removed within 20 to 25 seconds. Viscoat adhered to the lens capsule and to the posterior surface of the IOL and cooplete removal required approximately 3.5 minutes. Most Occucoat and Orcolon was aspirated within one minute; however, removal was completed only after three minutes. Removal of Healon and Healon GV was faster and more complete than removal of the other viscoelastics. Whether a small amount of viscoelastic left in the eye or trapped behind the IOL optic has any clinical significance has to be studied.
AB - The one significant complication of viscoelastic materials is that they may cause postoperative intraocular pressure rise. We investigated the rate and ease of removal of various viscoelastics using the Miyake video technique. Five viscoelastics were investigated: sodium hyaluronate (Healon®), Healon GV®, chondroitin sulfate. sodium hyaluronate (Viscoat®), hydroxypropylmethylcellulose (Occucoat®), and polyacrylamide (Orcolon®). The viscoelastics were dyed with fluorescein and, after filling the capsular bag with a viscoelastic material, a posterior chamber intraocular lens (IOL) was implanted. The viscoelastic was then aspirated using an automated irrigation/aspiration device. Healon and Healon GV were completely removed within 20 to 25 seconds. Viscoat adhered to the lens capsule and to the posterior surface of the IOL and cooplete removal required approximately 3.5 minutes. Most Occucoat and Orcolon was aspirated within one minute; however, removal was completed only after three minutes. Removal of Healon and Healon GV was faster and more complete than removal of the other viscoelastics. Whether a small amount of viscoelastic left in the eye or trapped behind the IOL optic has any clinical significance has to be studied.
KW - postoperative glaucoma
KW - viscoelastic material
UR - http://www.scopus.com/inward/record.url?scp=0026601882&partnerID=8YFLogxK
U2 - 10.1016/S0886-3350(13)80376-8
DO - 10.1016/S0886-3350(13)80376-8
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C2 - 1531233
AN - SCOPUS:0026601882
SN - 0886-3350
VL - 18
SP - 3
EP - 6
JO - Journal of Cataract and Refractive Surgery
JF - Journal of Cataract and Refractive Surgery
IS - 1
ER -