1.Phacoemulsification: Current Status.
Journal of the Korean Ophthalmological Society 1978;19(2):197-209
No abstract available.
Phacoemulsification*
2.Visual outcome following posterior capsule rupture during phacoemulsification in a tertiary care hospital in Malaysia
Thanigasalam Thevi, MS ; Soumendra Sahoo, MS
The Medical Journal of Malaysia 2016;71(2):45-46
Purpose: To analyse the visual outcomes of cases with
posterior capsule rupture (PCR) compared to those without
PCR following phacoemulsification. The occurrence of
posterior capsule rupture during phacoemulsification
surgery for cataract can have serious implications in the
visual recovery. However, recognition of PCR and proper
management can yield a successful visual outcome. This
study analysed the visual outcomes of cases with PCR
compared to those without PCR.
Methods: This is a case-control study. All patients who
underwent cataract surgery from 2011 to 2012 in Hospital
Melaka were traced from the National Eye Database (NED) of
Malaysia. The visual outcomes were classified as good,
borderline and poor as per WHO guidelines. The data was
analysed with SPSS version 12 IBM.
Results: Out of 80.4% (2519) of eyes that had undergone
phacoemulsification (PHACO) type of surgery, 3.06% (77
cases) had posterior capsule rupture complication. There
was no significant difference in the visual outcome of
borderline between cases with PCR and cases without PCR
(Odds Ratio (OR) 0.989; 95% Confidence Interval (CI) 0.382-
2.560). However, cases with PCR were significantly less
likely to have good vision compared to those without PCR
(OR 0.335; 95% CI 0.157-0.714).
Conclusion: The study reveals that a significant number of
patients without PCR had good vision, whereas those with
PCR did not get good vision. We would like to suggest
meticulous care during phacoemulsification surgery to
avoid PCR in order to obtain good visual outcomes.
Phacoemulsification
3.Visual outcomes and intraoperative complication rates of Phacoemulsification Cataract Surgery by third year ophthalmology residents in the UP-Philippine General Hospital
Richard C. Kho ; Maria Angelica DF. Villano
Acta Medica Philippina 2019;53(4):350-354
Background:
Phacoemulsification is the most important cataract surgical procedure performed by ophthalmology residents. There is an increasing and consistent trend in international studies on decreased complication rates and more efficient surgical techniques with more surgeries performed. The data collected from this study can be used to quantitatively assess the cataract surgery training of Ophthalmology residents in the country and can help to improve the quality of cataract surgeries taught and performed in the training programs.
Objectives:
To analyze outcomes of phacoemulsification cataract surgeries and to determine the intraoperative complication rates of third-year residents of the University of the Philippines - Philippine General Hospital (UP-PGH).
Methods:
Retrospective chart review of phacoemulsification cases done by eight third-year ophthalmology residents at the UP-PGH from January 1 to December 31, 2017. Outcomes measured included postoperative best corrected visual acuity (BCVA), intraoperative complications (posterior capsular rent and vitreous loss), and adjusted phacoemulsification times (total phacoemulsification time multiplied by phacoemulsification power used).
Results:
Four hundred ninety-two (492) cases were analyzed. Postoperative mean BCVA was 20/25. There were no significant differences in visual acuity outcomes over the course of training. Intraoperative complications occurred in 33 cases, with fewer cases with posterior capsule rent and vitreous loss later in training after the first 50 cases. There was a downward trend of adjusted phacoemulsification time throughout training, with a significant difference between the first 50 and 100 cases.
Conclusion
Good visual outcomes are achievable throughout the resident’s phacoemulsification learning curve. Surgical competency in phacoemulsification, as measured by complication rates and phacoemulsification efficiency, still improves significantly with an increasing number of cases and experience beyond the first 100 cases.
Phacoemulsification
4.Comparison between the Wong Incision and stromal hydration of corneal incisions in phacoemulsification
Raymond Nelson Regalado ; Jay Marianito Vicencio ; Lee Verzosa ; Ruben Lim Bon Siong
Philippine Journal of Ophthalmology 2012;37(2):97-103
Objective:
To determine the efficacy of the Wong incision in providing wound seal compared to stromal wall
hydration in clear cornea phacoemulsification in cadaveric porcine eyes.
Method:
This was an in vitro comparative experimental study using ten porcine eyes. All eyes were randomly
assigned to the stromal wall hydration (control) or the Wong incision group (experimental). A side port was made
and the anterior chamber formed with viscoelastic device. The main incision was made 180 degrees away. In the
experimental group, a Wong incision was made first anterior to the main incision. Phacoemulsification surgery
with IOL insertion was simulated. The main incision was sealed by hydration. The anterior chamber (AC) was
infused with balanced salt solution (BSS) through an AC maintainer and leakage of fluid from the main incision
was assessed. Samples from the AC were taken before and after tryphan blue drip and were sent for analysis
by UV spectrophotometry. Trypan blue was dripped over the main incision and the whole eyeball was sent for
histopathology.
Results:
There was a significant increase in density from the pre-dye to the post-dye AC samples of the control
(0.0052 to 0.0074, p=0.01) and the experimental groups (0.0076 to 0.0094, p=0.02), although the final samples
showed an optical density comparable to pure BSS, indicating that there was no significant amount of trypan blue
detected in both groups. On histology, trypan blue staining was not seen in the incision tracts of both groups.
After infusing the AC with BSS, there was outward wound leakage in all eyes of the control group and none in the
experimental group.
Conclusion
The Wong incision was as effective as the lateral stromal wall hydration in preventing fluid influx.
Furthermore, the Wong incision showed a more stable wound seal against outward wound leakage in an in-vitro
porcine model of clear corneal phacoemulsification.
Phacoemulsification
5.Suture-related corneal abscess caused by enterococcus casseliflavus following complicated phacoemulsification surgery
Patricia Kaye T. Sy ; Karlo Marco D. Claudio
Philippine Journal of Ophthalmology 2024;49(1):61-65
Objective:
To report a case of a suture-related corneal abscess caused by Enterococcus casseliflavus on a phacoemulsification corneal incision.
Method:
This is a case report.
Results:
An elderly female underwent complicated phacoemulsification surgery on the left eye requiring sutures
to seal the corneal incisions. Suture removal was incomplete at the side port, and a suture abscess developed
after 9 weeks. Cultures revealed heavy growth of Enterococcus casseliflavus which was initially treated with an
empiric broad-spectrum antibiotic (levofloxacin 1.5%) administered via intrastromal and subconjunctival
injections, followed by culture-guided topical and oral medications. The corneal infection resolved but
significant corneal thinning led to perforation, requiring a modified Gunderson flap procedure to repair the
defect.
Conclusion
Intrastromal and subconjuctival injection of levofloxacin 1.5% may be a viable empiric treatment
option for Enterococcus casseliflavus suture-related corneal abscess.
Phacoemulsification
6.The Changes in the Area of the Anterior Capsulotomy Size.
Jun Woo SHIN ; Sung Kun CHUNG ; Nam Ho BAEK
Journal of the Korean Ophthalmological Society 2001;42(7):972-976
PURPOSE: To investigate whether there was any difference in anterior capsular opening area between the use of silicone intraocular lens(IOL) and acrylic IOL after continuous curvilinear capsulorhexis(CCC). METHODS: In 42 eyes, acrylic IOL(Acrysof(R), Alcon, U.S.A.) were inserted into the capsular bag during phacoemulsification, and in 36 eyes silicone IOL(Chiroflex II(R) , Chiron, U.S.A.) were inserted. The reduction rate of anterior capsular opening area at first, second, third and sixth postoperative month were compared between the two groups. RESULTS: On the whole, the reduction in anterior capsular opening area was larger by 0.574 mm 2 when silicone IOL was used, but the different was not statistically significant(P= .061). The result was the same at 1 month(P= .149), 2 months(P= .144), 3 months(P= .223), 6 months(P= .163) after surgery. CONCLUSIONS: We concluded that there was little difference in the changes of anterior capsular opening area after CCC between the use of silicone IOL and acylic IOL, and other factors should be considered.
Phacoemulsification
;
Silicones
7.Phacoemulsification with intraocular posterior chamber lens implantation in the eyes with previous trabeculectomy
Journal of Vietnamese Medicine 2005;0(2):48-54
A prospective study was conducted on 56 patients (56 yes) who underwent trabeculectomy to treat glaucoma and had blurred vision due to cataract. Most patients were 70-80 years old (60.7%). Patients with closed-angle glaucoma were 80.4%. Majority of eyes (42 eyes, 74.8%) had bad visual acuity (<1/10). Postoperatively, 23 eyes (41%) achieved visual acuity from 3/10 to 7/10. Between 1 and 6 months postoperative, visual acuity improved significantly and quite stable during follow-up period with 30 eyes (53.5 %) achieved acuity of 5/10 or better. One month after operation, there were 30 eyes (54.2%) with intraocular pressure<18mmHg and 26 eyes (45.8%) with previous inflammation discharged membrane, disengage or cutting the pupil edge, all are mechanic effects which affect to cornea endothelium and iris
Phacoemulsification
;
Trabeculectomy
8.The Relationship with the Density of Lens Nucleus and Phacoemulsification Time.
Tae Hyung KOO ; Sung Kun CHUNG ; Nam Ho BAEK
Journal of the Korean Ophthalmological Society 1998;39(5):912-917
To investigate the relationship of the density, thickness of lens nucleus and cortex with phacoemulsification time, we measured the preoperative density and length of lens nucleus and cortex of 100 eyes with a Scheimpflug camera. We performed phacoemulsification on the same phacoemulsification technique using a phacoemulsifier aspirator by the same surgeon. The preoperative mean values of the density of lens nucleus and cortex were 127. 09+/-57.44 and 30. 33+/-15. 24, respectively. The mean values of the thickness for both were 3.05+/-0.42mm and 0.65+/-0.17mm, respectively. The mean value of phacoemulsification time was 92.68+/-56.98 seconds. The phacoemulsification time was increased significantly as the density of lens nucleus was increased (P<0.0001). However, the thickness of the lens nucleus and cortex and the density of cortex had no significant effect on the phacoemulsification time (p=0. 235, p=0.811). Preoperative evaluation with a Scheimpflug camera is particularly valuable for cataractous patients with corneal endothelial disease deciding on phacoemulsification.
Cataract
;
Humans
;
Phacoemulsification*
10.The Change of Corneal Astigmatism Following Varying Incision Locations and Methods for Cataract Surgery in Case of Against-the-Rule Astigmatism.
Journal of the Korean Ophthalmological Society 1998;39(4):682-686
Phacoemulsification and foldable PCL implantation was done on 51 eyes with preoperative against-the-rule corneal astigmatism. Different locations and incisions were employed: 18 cases of supeiror scleral pocket incision(Group 1), 16 cases of temporal scleral pocket incison(Group 2), and 17 cases of temporal clear corneal incison(Group 3). Changes in corneal astigmatism were analyzed by vector method following operation. In group 1, the amount of against-the-rule surgically-induced-astigmatism was 0.72 D at potoperative 2 months. Minimal corneal astigmatic chagne was observed in group 2. Change of 0.83 D in the with-the rule direction was in with-the rule direction. In cases of against-the rule corneal astigmatism patients, it is better to use temporal approach considering surgically induced astigmatism, and, at postoperative 2 months, we observed that clear corneal incision induces with-the-rule surgically-induced astigmatism, and reduced total amount of corneal astigmatism.
Astigmatism*
;
Cataract*
;
Humans
;
Phacoemulsification