Postoperative intraocular lens rotation : A randomized comparison of Plate and loop haptic implants. Discussion
Identifieur interne : 001513 ( PascalFrancis/Corpus ); précédent : 001512; suivant : 001514Postoperative intraocular lens rotation : A randomized comparison of Plate and loop haptic implants. Discussion
Auteurs : C. K. Patel ; S. Ormonde ; P. H. Rosen ; A. J. Bron ; D. J. AppleSource :
- Ophthalmology : (Rochester, MN) [ 0161-6420 ] ; 1999.
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- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
Objective: To compare the postoperative rotation of plate and loop haptic implants of spherical power to ascertain the optimal design appropriate for toric intraocular lenses (lOLs). Design: Randomized, controlled trial. Participants: Forty-eight patients attending for routine cataract surgery by phacoemulsification. Method: Patients with cataract as the only ocular disease were randomly implanted with plate or loop haptic implants after uncomplicated phacoemulsification. The baseline position of the IOL was determined from a video frame acquired at the conclusion of surgery. Postoperative IOL position was documented using digital retroillumination images at 2 weeks and 6 months after surgery. Capsular fusion patterns were recorded using slit-lamp biomicroscopy. Correlation of IOL rotation with axial length, capsular contraction, and fusion was attempted. Main Outcome Measures: Early IOL rotation, occurring between surgery and 2 weeks after surgery, was graded as mild (<10°), moderate (10°< to <30°), or severe (>30°) by a semiobjective online comparison of the images. Late IOL rotation, occurring between 2 weeks and 6 months, was measured more precisely using software developed specifically for the study. Results: Twenty-three patients were allocated the loop haptic and 25 the plate haptic IOL. The groups were comparable for demographic variables and numbers of patients excluded from analysis (P > 0.05). Five (24%) of 21 of plate haptic lOLs underwent severe early rotation compared to 2 (9%) of 22 loop haptics (P = 0.36). The median late rotation was 6.8° for loop haptics compared to 0.6° for plate haptics (P = 0.0073). Between 2 weeks and 6 months, anticlockwise rotation had occurred in 16 (89%) of 18 loop haptic lOLs compared to 11 (52%) of 21 plate haptic lOLs (P = 0.0081). Conclusions: Plate haptic lOLs show greater rotational stability than do loop haptics made from polypropylene once capsular fusion has taken place. Loop haptics invariably rotate anticlockwise after 2 weeks.
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NO : | PASCAL 00-0006847 INIST |
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ET : | Postoperative intraocular lens rotation : A randomized comparison of Plate and loop haptic implants. Discussion |
AU : | PATEL (C. K.); ORMONDE (S.); ROSEN (P. H.); BRON (A. J.); APPLE (D. J.) |
AF : | Oxford Eye Hospital, Radcliffe Infirmary/Oxford/Royaume-Uni (1 aut., 2 aut., 3 aut., 4 aut.); Storm Eye Institute, Department of Ophthalmology, Medical College of South Carolina, 167 Ashley Avenue, Box 250676/Charleston, SC 29425/Etats-Unis (5 aut.) |
DT : | Publication en série; Article; Commentaire; Niveau analytique |
SO : | Ophthalmology : (Rochester, MN); ISSN 0161-6420; Coden OPHTDG; Etats-Unis; Da. 1999; Vol. 106; No. 11; Pp. 2190-2196; Bibl. 18 ref. |
LA : | Anglais |
EA : | Objective: To compare the postoperative rotation of plate and loop haptic implants of spherical power to ascertain the optimal design appropriate for toric intraocular lenses (lOLs). Design: Randomized, controlled trial. Participants: Forty-eight patients attending for routine cataract surgery by phacoemulsification. Method: Patients with cataract as the only ocular disease were randomly implanted with plate or loop haptic implants after uncomplicated phacoemulsification. The baseline position of the IOL was determined from a video frame acquired at the conclusion of surgery. Postoperative IOL position was documented using digital retroillumination images at 2 weeks and 6 months after surgery. Capsular fusion patterns were recorded using slit-lamp biomicroscopy. Correlation of IOL rotation with axial length, capsular contraction, and fusion was attempted. Main Outcome Measures: Early IOL rotation, occurring between surgery and 2 weeks after surgery, was graded as mild (<10°), moderate (10°< to <30°), or severe (>30°) by a semiobjective online comparison of the images. Late IOL rotation, occurring between 2 weeks and 6 months, was measured more precisely using software developed specifically for the study. Results: Twenty-three patients were allocated the loop haptic and 25 the plate haptic IOL. The groups were comparable for demographic variables and numbers of patients excluded from analysis (P > 0.05). Five (24%) of 21 of plate haptic lOLs underwent severe early rotation compared to 2 (9%) of 22 loop haptics (P = 0.36). The median late rotation was 6.8° for loop haptics compared to 0.6° for plate haptics (P = 0.0073). Between 2 weeks and 6 months, anticlockwise rotation had occurred in 16 (89%) of 18 loop haptic lOLs compared to 11 (52%) of 21 plate haptic lOLs (P = 0.0081). Conclusions: Plate haptic lOLs show greater rotational stability than do loop haptics made from polypropylene once capsular fusion has taken place. Loop haptics invariably rotate anticlockwise after 2 weeks. |
CC : | 002B25B |
FD : | Lentille intraoculaire; Chambre postérieure; Cataracte; Traitement; Rotation; Postopératoire; Complication; Iatrogène; Etude comparative; Implant; Homme |
FG : | Chirurgie; Oeil pathologie; Cristallin pathologie; Segment antérieur pathologie |
ED : | Intraocular lens; Posterior chamber; Cataract; Treatment; Rotation; Postoperative; Complication; Iatrogenic; Comparative study; Implant; Human |
EG : | Surgery; Eye disease; Lens disease; Anterior segment disease |
SD : | Lente intraocular; Cámara posterior; Catarata; Tratamiento; Rotación; Postoperatorio; Complicación; Iatrógeno; Estudio comparativo; Implante; Hombre |
LO : | INIST-18914.354000080356520270 |
ID : | 00-0006847 |
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Pascal:00-0006847Le document en format XML
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<front><div type="abstract" xml:lang="en">Objective: To compare the postoperative rotation of plate and loop haptic implants of spherical power to ascertain the optimal design appropriate for toric intraocular lenses (lOLs). Design: Randomized, controlled trial. Participants: Forty-eight patients attending for routine cataract surgery by phacoemulsification. Method: Patients with cataract as the only ocular disease were randomly implanted with plate or loop haptic implants after uncomplicated phacoemulsification. The baseline position of the IOL was determined from a video frame acquired at the conclusion of surgery. Postoperative IOL position was documented using digital retroillumination images at 2 weeks and 6 months after surgery. Capsular fusion patterns were recorded using slit-lamp biomicroscopy. Correlation of IOL rotation with axial length, capsular contraction, and fusion was attempted. Main Outcome Measures: Early IOL rotation, occurring between surgery and 2 weeks after surgery, was graded as mild (<10°), moderate (10°< to <30°), or severe (>30°) by a semiobjective online comparison of the images. Late IOL rotation, occurring between 2 weeks and 6 months, was measured more precisely using software developed specifically for the study. Results: Twenty-three patients were allocated the loop haptic and 25 the plate haptic IOL. The groups were comparable for demographic variables and numbers of patients excluded from analysis (P > 0.05). Five (24%) of 21 of plate haptic lOLs underwent severe early rotation compared to 2 (9%) of 22 loop haptics (P = 0.36). The median late rotation was 6.8° for loop haptics compared to 0.6° for plate haptics (P = 0.0073). Between 2 weeks and 6 months, anticlockwise rotation had occurred in 16 (89%) of 18 loop haptic lOLs compared to 11 (52%) of 21 plate haptic lOLs (P = 0.0081). Conclusions: Plate haptic lOLs show greater rotational stability than do loop haptics made from polypropylene once capsular fusion has taken place. Loop haptics invariably rotate anticlockwise after 2 weeks.</div>
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<ET>Postoperative intraocular lens rotation : A randomized comparison of Plate and loop haptic implants. Discussion</ET>
<AU>PATEL (C. K.); ORMONDE (S.); ROSEN (P. H.); BRON (A. J.); APPLE (D. J.)</AU>
<AF>Oxford Eye Hospital, Radcliffe Infirmary/Oxford/Royaume-Uni (1 aut., 2 aut., 3 aut., 4 aut.); Storm Eye Institute, Department of Ophthalmology, Medical College of South Carolina, 167 Ashley Avenue, Box 250676/Charleston, SC 29425/Etats-Unis (5 aut.)</AF>
<DT>Publication en série; Article; Commentaire; Niveau analytique</DT>
<SO>Ophthalmology : (Rochester, MN); ISSN 0161-6420; Coden OPHTDG; Etats-Unis; Da. 1999; Vol. 106; No. 11; Pp. 2190-2196; Bibl. 18 ref.</SO>
<LA>Anglais</LA>
<EA>Objective: To compare the postoperative rotation of plate and loop haptic implants of spherical power to ascertain the optimal design appropriate for toric intraocular lenses (lOLs). Design: Randomized, controlled trial. Participants: Forty-eight patients attending for routine cataract surgery by phacoemulsification. Method: Patients with cataract as the only ocular disease were randomly implanted with plate or loop haptic implants after uncomplicated phacoemulsification. The baseline position of the IOL was determined from a video frame acquired at the conclusion of surgery. Postoperative IOL position was documented using digital retroillumination images at 2 weeks and 6 months after surgery. Capsular fusion patterns were recorded using slit-lamp biomicroscopy. Correlation of IOL rotation with axial length, capsular contraction, and fusion was attempted. Main Outcome Measures: Early IOL rotation, occurring between surgery and 2 weeks after surgery, was graded as mild (<10°), moderate (10°< to <30°), or severe (>30°) by a semiobjective online comparison of the images. Late IOL rotation, occurring between 2 weeks and 6 months, was measured more precisely using software developed specifically for the study. Results: Twenty-three patients were allocated the loop haptic and 25 the plate haptic IOL. The groups were comparable for demographic variables and numbers of patients excluded from analysis (P > 0.05). Five (24%) of 21 of plate haptic lOLs underwent severe early rotation compared to 2 (9%) of 22 loop haptics (P = 0.36). The median late rotation was 6.8° for loop haptics compared to 0.6° for plate haptics (P = 0.0073). Between 2 weeks and 6 months, anticlockwise rotation had occurred in 16 (89%) of 18 loop haptic lOLs compared to 11 (52%) of 21 plate haptic lOLs (P = 0.0081). Conclusions: Plate haptic lOLs show greater rotational stability than do loop haptics made from polypropylene once capsular fusion has taken place. Loop haptics invariably rotate anticlockwise after 2 weeks.</EA>
<CC>002B25B</CC>
<FD>Lentille intraoculaire; Chambre postérieure; Cataracte; Traitement; Rotation; Postopératoire; Complication; Iatrogène; Etude comparative; Implant; Homme</FD>
<FG>Chirurgie; Oeil pathologie; Cristallin pathologie; Segment antérieur pathologie</FG>
<ED>Intraocular lens; Posterior chamber; Cataract; Treatment; Rotation; Postoperative; Complication; Iatrogenic; Comparative study; Implant; Human</ED>
<EG>Surgery; Eye disease; Lens disease; Anterior segment disease</EG>
<SD>Lente intraocular; Cámara posterior; Catarata; Tratamiento; Rotación; Postoperatorio; Complicación; Iatrógeno; Estudio comparativo; Implante; Hombre</SD>
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