scholarly journals Intraoperative Posterior Chamber Irrigation to Enhance Vitreous Cavity Support during Phacoemulsification Cataract Surgery after Vitrectomy

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Jiao Lyu ◽  
Peiquan Zhao
Keyword(s):  
Cataract Surgery ◽  
Anterior Chamber ◽  
Anterior Chamber Depth ◽  
Vitreous Cavity ◽  
Chamber Pressure ◽  
Posterior Chamber ◽  
Cavity Pressure ◽  
Corneal Incision ◽  
Phacoemulsification Cataract Surgery

Purpose. To report the effectiveness of an intraoperative posterior chamber irrigation technique to enhance vitreous cavity support during postvitrectomy phacoemulsification cataract surgery. Methods. The irrigation technique was performed during phacoemulsification cataract surgery on 10 postvitrectomy eyes (9 patients) with moderate or hard density cataracts and with low vitreous cavity support. A cohesive viscoelastic tamponade was applied to pressurize the anterior chamber to start the procedure. The vitreous cavity was then irrigated using a 26-gauge flushing cannula injecting balanced salt solution under the iris through the zonules, until the vitreous cavity pressure balanced and exceeded the anterior chamber pressure and viscoelastic flowed out from the corneal incision. Intraoperative performance with the irrigation technique, postoperative visual acuity, and anatomy, and complications were retrospectively evaluated. Results. The irrigation procedure instantly enhanced posterior segment pressure before capsulorhexis in 4 eyes, before phacoemulsification in 4 eyes, after phacoemulsification in 2 eyes, before intraocular lens implantation in 6 eyes, and after implantation in 3 eyes. Phacoemulsification cataract surgery was facilitated by the irrigation technique, with a stabilized anterior chamber and robust vitreous cavity support. No complications occurred intraoperatively and postoperatively. At a 3-month follow-up, favorable visual and anatomic outcomes were achieved in all eyes. Conclusions. The irrigation technique balanced the pressure of anterior and posterior segments. Thus, vitreous cavity support and anterior chamber depth were well stabilized during phacoemulsification cataract surgery in postvitrectomy eyes.

EVALUATE THE CHANGES IN INTRAOCULAR PRESSURE AFTER PHACOEMULSIFICATION WITH POSTERIOR CHAMBER LENS IMPLANTATION

2014 ◽  
pp. 224-230
Author(s):  
Thanh Hai Nguyen ◽  
Van Nam Phan ◽  
Quoc Viet Nguyen ◽  
Anh Quan Duong ◽  
Nha Uyen Phan
Keyword(s):  
Anterior Chamber ◽  
Anterior Chamber Depth ◽  
Correlation Study ◽  
Posterior Chamber ◽  
Anterior Chamber Angle ◽  
Related Factors ◽  
Posterior Chamber Lens ◽  
Posterior Chamber Lens Implantation ◽  
Reduction Effect

Purpose: To evaluate IOP reduction effect of phaco surgery in senile cataract patients, and to assess the correlation between the changes of IOP and the some affects. Methods: Prospective correlation study. Phaco surgery was performed on 107 senile cataracts of 102 patients in Ophthalmology Department of Hue Central Hospital from January 2014 to July 2014. IOP was measured preoperatively, 4 – 8 hours, 1 day, 10 days, 1 month, and 3 months postoperatively. Some related factors were also analyzed. Results: Mean preoperative IOP declined from 17.27 ± 2.42 mmHg to 14.71 ± 2.20 mmHg at 1 month after the surgery and remained stable until the last follow-up (3 months). The IOP decreased correlated proportionally to the morphology of cataract, the firmness and thickness of lens, anterior chamber depth, anterior chamber angle. Conclusion: IOP was significantly reduced after phacoemulsification. This effect sustained through out the study time. Key words: Cataract, post-operative IOP reduction, phacoemulsification.

scholarly journals Management of Dislocated Intraocular Lenses with Iris Suture

2016 ◽  
Vol 27 (1) ◽  
pp. 45-48 ◽  
Author(s):  
Mun Y. Faria ◽  
Nuno P. Ferreira ◽  
Mario Canastro
Keyword(s):  
Visual Acuity ◽  
Cataract Surgery ◽  
Macular Edema ◽  
Clinical Signs ◽  
Intraocular Lenses ◽  
Posterior Chamber ◽  
Pigment Dispersion ◽  
Corneal Incision ◽  
The Mean

Purpose Subluxated or malpositioned intraocular lenses (IOLs) and inadequate capsular support is a challenge for every ophthalmic surgeon. Iris suture of an IOL seems to be an easy technique for the management of dislocated 3-piece IOL, allowing the IOL to be placed behind the iris, far from the trabecular meshwork and corneal endothelium. The purpose of this study is to assess the results of pars plana vitrectomy (PPV) and iris suture of dislocated 3-piece acrylic IOLs. Methods In this retrospective, nonrandomized, interventional case consecutive study, of a total of 103 dislocated IOLs, 36 eyes were considered for analysis. All 36 eyes had subluxated or totally luxated 3-piece IOL and underwent iris suture at the Ophthalmology Department of Santa Maria Hospital-North Lisbon Hospital Center, Portugal, from January 2011 until November 2015. All patients underwent 3-port 23-G PPV. The optic zone of the dislocated IOL was placed anterior to the iris with the haptics behind, in the posterior chamber. Haptics were sutured to iris followed by placement of the optics behind iris plane. Postoperative measures included best-corrected visual acuity (BCVA), IOL position, intraocular pressure, pigment dispersion, clinical signs of endothelial cell loss, and development of macular edema. Results A total of 36 eyes of 36 patients were included. All underwent successful iris fixation of dislocated 3-piece IOL. Mean overall follow-up was 15.9 months (range 3-58 months). At presentation, 16 eyes (44.4%) had a luxated IOL and 20 eyes (55.6%) a subluxated IOL. As underlying cause, 17 eyes (47.2%) had a history of complicated cataract surgery, 5 eyes (13.9%) had a traumatic dislocation of the IOL, and 6 eyes (16.7%) had a previous vitreoretinal surgery. A total of 8 eyes (22.2%) had late spontaneous IOL dislocation after uneventful cataract surgery. The mean preoperative BCVA was 1.09 ± 0.70 logarithm of the minimal angle of resolution (logMAR) units and mean postoperative BCVA was 0.48 ± 0.58 of logMAR units. The mean visual acuity improvement was 4.08 ± 5.33 lines on the logMAR scale. In this study, every IOL was stable at the last follow-up. As late complications, macular edema occurred in 1 patient and retinal detachment occurred in 2 patients. There were no cases of endophthalmitis. Conclusions Iris suture fixation of subluxated IOL is a good treatment option for eyes with dislocated IOLs, leading to long-term stability of the IOL. The advantage of this procedure is using the same IOL in a closed eye surgery. No astigmatic difference is expected as no large corneal incision is needed.

scholarly journals Continuous Curvilinear Capsulorhexis in Cataract Surgery Using a Modified 3-Bend Cystotome

2015 ◽  
Vol 2015 ◽  
pp. 1-5
Author(s):  
Yuan Zeng ◽  
Jian-hua Gao
Keyword(s):  
Cataract Surgery ◽  
Anterior Chamber ◽  
Intraocular Lens ◽  
Completion Time ◽  
Anterior Chamber Depth ◽  
Corneal Edema ◽  
Group A ◽  
Capsular Rupture ◽  
Phacoemulsification Cataract Surgery ◽  
Capsular Bag

We modified a 2-bend cystotome for continuous curvilinear capsulorhexis (CCC) in manual or phacoemulsification cataract surgery to improve the safety and ease of performance. A 26G needle was converted into a cystotome with 3 bends. In this retrospective study, the performance of modified 3-bend cystotome was compared with conventional 2-bend cystotome. During cataract surgery, in the 3-bend cystotome group, mean completion time of CCC was shorter, mean times of viscoelastic agent supplement were less, and CCC success rate was higher than that in 2-bend group. Complication incidence, such as postoperative transient corneal edema and irreparable V-shaped tear, was also lower in 3-bend group. No posterior capsular rupture or no other complication was observed in either group. A polymethyl methacrylate intraocular lens or a hydrogel intraocular lens was implanted in the capsular bag in all eyes. We conclude that it is safe and efficient to accomplish a CCC using the 3-bend cystotome due to its ability to sustain the anterior chamber depth (ACD) and keep the posterior lip intact. Using the 3-bend cystotome also allowed for an adequate view into the anterior chamber from lack of wound deformation.

Retinal Detachment after Cataract Surgery: Retrospective Study of 57 Cases

1993 ◽  
Vol 3 (4) ◽  
pp. 177-180 ◽  
Author(s):  
E. Frau ◽  
H. Sam ◽  
J.F. Korobelnik ◽  
D. Chauvaud
Keyword(s):  
Retrospective Study ◽  
Retinal Detachment ◽  
Cataract Surgery ◽  
Anterior Chamber ◽  
Posterior Chamber ◽  
Surgical Results ◽  
Visual Prognosis ◽  
Department Of Ophthalmology ◽  
Posterior Chamber Iol

The Authors studied the characteristics and the surgical results of 57 pseudophakic patients operated on between January 1989 and June 1991 for primary retinal detachment at the Department of Ophthalmology of the “Hotel Dieu de Paris Hospital”, with a postoperative follow-up of at least six months. The series included 23 eyes with posterior chamber IOL, 33 eyes with anterior chamber IOL. The ECCE with PC IOL group and the ICCE with AC IOL group had the same anatomical and visual prognosis.

scholarly journals A prospective evaluation of efficacy and safety of topical bromfenac 0.09% over topical flurbiprofen 0.03% after cataract surgery

2019 ◽  
Vol 8 (2) ◽  
pp. 234
Author(s):  
Sahana K. Hebbar ◽  
Deepak P. ◽  
Nalini G. K. ◽  
Kavitha C. V. ◽  
Sahana G. N. ◽  
...  
Keyword(s):  
Cataract Surgery ◽  
Anterior Chamber ◽  
Corneal Edema ◽  
Response To Treatment ◽  
Posterior Chamber ◽  
Similar Response ◽  
Efficacy And Safety ◽  
Significant Difference ◽  
Inflammatory Changes

Background: Different medications are used to reduce pain and inflammation after cataract surgery. Hence this study was taken up to compare the efficacy and safety of topical bromfenac 0.09% over topical flurbiprofen 0.03% in reducing anterior chamber inflammation and pain after cataract surgery.Methods: Total of 100 patients who underwent uneventful cataract surgery with posterior chamber intra ocular lens (IOL) implantation were randomly allocated to receive bromfenac 0.09% and flurbiprofen 0.03% topically from first post-operative day onwards for 6 weeks. Assessment of anterior chamber inflammation and pain was done by slit lamp and visual analogue scale respectively on each follow up days. Analysis was done by unpaired t test and Fischer’s exact test.Results: The response to treatment was earlier in bromfenac group for all the inflammatory changes (significant difference was found on day 7, p<0.05) except for corneal edema where both the groups showed similar response. On 7th day after surgery, 72% patients in flurbiprofen group and 12% in bromfenac group had pain (score1), while on the 14th day none in the bromfenac group complained of pain whereas 4% in flurbiprofen group still had pain. Both the drugs were safe and no clinically serious adverse effects were observed in either of the groups.Conclusions: This study showed both the medications, topical bromfenac 0.09% and topical flurbiprofen 0.03% effective and safe in reducing pain and anterior chamber inflammation after cataract surgery but the response was earlier with bromfenac 0.09%.

scholarly journals Urrets-Zavalia Syndrome Following Cataract Surgery

2021 ◽  
pp. 659-663
Author(s):  
Shimon Kurtz ◽  
Maayan Fradkin
Keyword(s):  
Intraocular Pressure ◽  
Case Report ◽  
Cataract Surgery ◽  
Anterior Chamber ◽  
Inflammatory Reaction ◽  
Intraocular Lens Implantation ◽  
Postoperative Course ◽  
Lens Implantation ◽  
The Right

We describe a case of Urrets-Zavalia syndrome (UZS) in a healthy 56-year-old woman who underwent femtosecond-assisted phacoemulsification with intraocular lens implantation in both eyes. One month after an uneventful postoperative course in the left eye, the right eye was operated. Dilated pupil which was nonreactive to light appeared on day 21 postoperatively. This was discovered upon examination following anterior chamber inflammatory reaction which occurred 2 weeks following her surgery. Our case report emphasizes the importance and danger in developing UZS even if the reaction in the anterior chamber does not occur immediately after surgery. In addition, the importance of intraocular pressure follow-up in the period after UZS is acknowledged.

scholarly journals Surgically induced astigmatism and coupling effect-mediated keratometric changes after conventional phacoemulsification cataract surgery

2021 ◽  
Author(s):  
Reinhard Angermann ◽  
Christoph Palme ◽  
Philipp Segnitz ◽  
Andreas Dimmer ◽  
Eduard Schmid ◽  
...  
Keyword(s):  
Cataract Surgery ◽  
Coupling Effect ◽  
Case Series ◽  
Corneal Incision ◽  
Surgically Induced Astigmatism ◽  
Incision Size ◽  
Case Series Study ◽  
Induced Astigmatism ◽  
Surgically Induced ◽  
Phacoemulsification Cataract Surgery

Summary Background The aim of the present study was to describe surgically induced astigmatism (SIA) and the coupling effect after conventional phacoemulsification cataract surgery (CPS) in relation to the incisional axis. Material and methods A total of 42 patients were included in the retrospective case series study. Corneal topography was obtained for patients with significant cataract before and 6 weeks after CPS with a main clear corneal incision size of 2.4 mm. Patients were grouped according to the relationship of the incisional axis to the position of the steep axis into a steep incisional group and a flat incisional group. Results In total, 46 eyes were included in the study. While the steep incisional group showed an SIA of −0.15 D (± 0.35), the flat incisional group had a significantly higher SIA of 0.20 D (± 0.51) (p = 0.03). The coupling ratio (CR) in the steep incisional group was −0.38 (± 1.41) and in the flat incisional group it was 0.16 (± 0.97). Correspondingly, a coupling constant (CC) of −0.25 was found for group 1 and a CC of 0.0 for group 2. Conclusion Our results suggest that the location of the main incision should be decided with consideration of the corneal astigmatism in order to minimize the SIA. The CR helps to understand the effect of induced astigmatism and the change in spherical equivalent.

scholarly journals Intraocular Pressure Reduction after Femtolaser Assisted Cataract Surgery and Its Association with the Use of Ultrasound

Medicina ◽  
2021 ◽  
Vol 57 (5) ◽  
pp. 437
Author(s):  
Hana Abouzeid ◽  
Walter Ferrini ◽  
Murielle Bochud
Keyword(s):  
Intraocular Pressure ◽  
Linear Regression ◽  
Cataract Surgery ◽  
Anterior Chamber ◽  
Anterior Chamber Depth ◽  
Multiple Linear Regression Model ◽  
Study Data ◽  
Department Of Ophthalmology ◽  
Duration Of Surgery ◽  
Ocular Pressure

Background and Objectives: To quantify the change in intraocular pressure (IOP) after phacoemulsification in patients having undergone femtolaser assisted cataract surgery (FLACS), and study the influence of the use of ultrasound on this change. Setting: Jules-Gonin Eye Hospital, University Department of Ophthalmology, Lausanne, Switzerland. Materials and Methods: Interventional study. Methods: All consecutive cases operated with FLACS and with complete data for the studied parameters were selected for inclusion in the study. Data had been prospectively collected and was analysed retrospectively. Linear regression was performed to explore the association of change in IOP with time of measure, ultrasound use, sex, age, and duration of surgery. Results: There was a mean decrease in intraocular pressure of 2.5 mmHg (CI 95% −3.6; −1.4, p < 0.001) postoperatively. No association between the change in intraocular pressure and ultrasound time or effective phaco time was observed when the data were analyzed one at a time or in a multiple linear regression model. There was no association with sex, age, nuclear density, presence of pseudoexfoliation, duration of surgery, and time of ocular pressure measurement. Eyes with preoperative IOP ≥ 21 mmHg had a more significant IOP reduction after surgery (p < 0.0001) as did eyes with an anterior chamber depth <2.5 mm (p = 0.01). Conclusion: There was a decrease in intraocular pressure six months after FLACS in our study similar to that in the published literature for standard phacoemulsification. The use of ultrasound may not influence the size of the decrease, whereas the preoperative IOP and anterior chamber depth do. FLACS may be as valuable as standard phacoemulsification for cases where IOP reduction is needed postoperatively.

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