scholarly journals Stabilization of refractive error and associated factors following small incision phacoemulsification cataract surgery

2022 ◽  
Vol 22 (1) ◽  
Author(s):  
Ammar M Khan ◽  
Derek M. Waldner ◽  
Micah Luong ◽  
Emi Sanders ◽  
Andrew C. S. Crichton ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Cataract Surgery ◽  
Refractive Error ◽  
Central Corneal Thickness ◽  
Corneal Thickness ◽  
Spherical Equivalent ◽  
Small Incision ◽  
Lens Position ◽  
Phacoemulsification Cataract Surgery

Abstract Background Accumulating evidence suggests that refractive stabilization occurs rapidly following small incision cataract surgery. Nonetheless, many guidelines still suggest waiting four to 6 weeks before prescribing corrective lenses. This study was undertaken to supplement the existing literature regarding refractive stabilization, and evaluate multiple contributing factors that could dissuade clinicians from confidently correcting refractive error in the early post-operative course following routine cataract surgeries. Methods Adult patients undergoing phacoemulsification cataract surgery with uncomplicated surgeries and post-surgical courses at the Calgary Ophthalmology Centre (Calgary, Alberta, Canada) were included in this prospective observational case series. Exclusion criteria included known corneal dystrophies, infectious keratitis, complicated surgery or toric/multifocal IOLs. Data was collected at weekly intervals for a total of 6 weeks. Collected data included autorefraction, visual acuity, corneal pachymetry, and effective lens position. Results One hundred six eyes of 104 patients were included in this study. Post-operative sphere, cylinder and spherical equivalent were not significantly different at any post-operative week compared with week six, and 80–86% of patients were within 0.5D of last follow-up spherical equivalent at any week. The secondary outcomes of central corneal thickness, effective lens position and visual acuity did, however, exhibit significant differences between early post-operative weeks and last follow-up values. Conclusions These data suggest that refractive error can be effectively measured and corrected as early as one-week post-operatively in the majority of patients, though other measures of post-operative stability including central corneal thickness, effective lens position and visual acuity can require up to 4 weeks to stabilize. Thus a conservative and pragmatic approach may be to wait until 4 weeks post-operatively prior to obtaining refractive correction following uncomplicated phacoemulsification cataract surgery.

Outcomes of refractive error correction in pseudophakic patients using a sulcus piggyback intraocular lens

2020 ◽  
pp. 112067212090356
Author(s):  
Eliya Levinger ◽  
Michael Mimouni ◽  
Yaron Finkelman ◽  
Yossi Yatziv ◽  
Jonathan Shahar ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Cataract Surgery ◽  
Intraocular Lens ◽  
Refractive Error ◽  
Spherical Equivalent ◽  
Distance Visual Acuity ◽  
Refractive Outcomes ◽  
Uncorrected Distance Visual Acuity ◽  
Corrected Distance Visual Acuity

Purpose: The purpose of this study was to assess the results of a sulcus intraocular lens (Sulcoflex) for pseudophakic refractive errors following phacoemulsification cataract surgery. Methods: This retrospective clinical observational cohort study included consecutive eyes in which a Sulcoflex was implanted. Uncorrected distance visual acuity and corrected distance visual acuity as well as refractive outcomes were assessed. The minimum follow-up time required for inclusion was 3 months. Results: In total, 15 eyes ( n = 15) were evaluated. The mean follow-up was 14 months (range: 3–18 months). The Sulcoflex aspheric (653L) was implanted in 13 eyes and the Sulcoflex toric (653T) in two eyes. The preoperative mean logMAR (Snellen) uncorrected distance visual acuity and corrected distance visual acuity were 0.88 (20/150) and 0.27 (20/40), respectively. The postoperative mean logMAR (Snellen) corrected distance visual acuity was 0.15 (20/30). The preoperative mean spherical equivalent was −0.22 ± 5.95 D and the postoperative mean spherical equivalent was −1.59 ± 1.45 D. There was a significant and strong correlation ( r = 0.64, p < 0.001) between the attempted and the achieved spherical equivalent. Conclusion: The Sulcoflex is a safe and viable option for patients with residual refractive error following cataract surgery.

scholarly journals Changes in central corneal thickness (CCT) and central macular thickness (CMT) following uncomplicated small-incision cataract surgery (SICS)

2020 ◽  
Author(s):  
Sanket Parajuli ◽  
Ruchi Shrestha ◽  
Senny chapagain ◽  
Prerana Singh ◽  
Ramesh Shrestha
Keyword(s):  
Visual Acuity ◽  
Cataract Surgery ◽  
Central Corneal Thickness ◽  
Corneal Thickness ◽  
Significant Rise ◽  
Macular Thickness ◽  
Central Macular Thickness ◽  
Small Incision Cataract Surgery ◽  
Small Incision ◽  
Post Surgery

AbstractObjectives1) To study the changes in central corneal thickness (CCT) which is an indirect indicator of corneal endothelial dysfunction after uncomplicated small incision cataract surgery (SICS) and 2) To study changes in macular thickness following uncomplicated SICS.MethodsThis was a prospective study conducted in Reiyukai Eiko Masunaga eye hospital, Banepa, Nepal. Those who fulfill inclusion criteria were included in the study. Small incision cataract surgery was performed on 68 eyes of 62 patients Change in central corneal thickness and central macular thickness from baseline was observed post-surgery on 1st day, 1 week and 6 weeks.Results33 females and 35 males were included in the study. Mean age was 58.26 years. This difference of visual acuity between pre and post-operative state was statistically significant. The 1st post-operative day (POD) and 1 week POD values when compared with preoperative CCT values were statistically significant. But the 6 weeks POD when compared to preoperative CCT values were not statistically significant. The 1st POD, 1 week POD and 6 weeks POD CMT values when compared with preoperative CMT values were statistically significant.ConclusionThis study revealed that there was a significant rise in CCT after SICS which gradually tended to normalize at 6 weeks. Similarly there was a gradual rise in CMT after SICS persisting even at 6 weeks. However these changes were subtle and there was a marked improvement of visual acuity after SICS.SynopsisThere was statistically significant increase in central corneal thickness and central macular thickness following uncomplicated small incision cataract surgery, the former of which tends to normalize at 6 weeks post-surgery.

scholarly journals Comparison of the Outcomes of Manual Small Incision Cataract Surgery (MSICS) and Phacoemulsification (PHACO) in Ghana

2021 ◽  
Vol 18 (3) ◽  
pp. 143-149
Author(s):  
Samuel Kyei ◽  
Ebenezer Zaabaar ◽  
Frank Assiamah ◽  
Michael Agyemang Kwarteng ◽  
Kofi Asiedu
Keyword(s):  
Visual Acuity ◽  
Postoperative Complications ◽  
Cataract Surgery ◽  
Medical Records ◽  
Cross Sectional Study ◽  
Small Incision Cataract Surgery ◽  
Cross Sectional ◽  
Small Incision ◽  
Uncorrected Visual Acuity

Background: The growing middle-class population of Ghana has seen more people being employed in visually demanding occupations  and hence there is an increased desire for quality post-cataract surgical visual outcomes. This study aimed at comparing the outcomes of manual small incision cataract surgery (MSICS) and phacoemulsification (PHACO) among Ghanaians. Methods: This was a retrospective cross-sectional study in which records of patients who underwent MSCIS or phacoemulsification by the same surgeon were reviewed. Results: Medical records of 248 eyes were reviewed, out of which 132 underwent PHACO and 116 had MSICS. A significant number of the  PHACO group had good (6/6–6/18) uncorrected visual acuity (UCVA) compared to the MSICS group at 1–2 weeks follow-up (p = 0.003) and 4–6 weeks follow-up (p = 0.002). MSICS resulted in a higher total astigmatic change compared to PHACO (p < 0.001). The PHACO grouphad a higher number of postoperative complications compared with the MSICS group (p <0.001). Postoperative borderline and poor  uncorrected visual acuity were associated with age, total astigmatic change, and postoperative complications. Conclusion: The postoperative UCVA outcomes at 4–6 weeks’ follow-up indicates that PHACO resulted in noticeably less spectacle dependency when compared to MSICS.

scholarly journals Refractive outcome of cataract surgery in eyes filled with silicone oil

2019 ◽  
Author(s):  
Piotr Kanclerz ◽  
Christoph Leisser ◽  
Andrzej Grzybowski ◽  
Paweł Lipowski
Keyword(s):  
Cataract Surgery ◽  
Silicone Oil ◽  
Spherical Equivalent ◽  
Refractive Outcome ◽  
Spherical Equivalent Refraction ◽  
Cataract Development ◽  
Oil Injection ◽  
Phacoemulsification Cataract Surgery

Abstract Background Cataract development is common in phakic eyes filled with silicone oil (SO), necessitating subsequent cataract removal. This study evaluated the refractive outcome in eyes filled with SO undergoing phacoemulsification cataract surgery (PCS). Methods This retrospective study evaluated patients with SO tamponade who were scheduled for PCS. Results Subjects (n=26) were followed-up for 29.5 ± 13.9 months after cataract surgery. The median spherical equivalent refraction (SER) was +5.3 D (interquartile range [IQR] +2.9 to +6.7) before PCS, and +3.4 D (IQR +2.0 to +4.4) after PCS. Within the follow-up period retinal reattachment after SO removal was achieved in 15 out of 26 eyes (57.7%). In 13 eyes assessment of refraction after SO-removal was possible, and showed a myopic shift of -4.6 D (IQR -2.9 to -7.3) in the SER. After SO removal, 5 of 13 eyes (38.5%) were within ±1.0 D of the target refraction, while 9 out of 13 eyes (69.2%) were within ±2.0 D. Conclusions The refractive outcome after PCS for eyes filled with SO is less predictable than that for normal eyes. Some of the eyes undergoing silicone oil injection may require long-term tamponade.

scholarly journals Correlation between visual acuity at discharge and on final follow-up in patients undergoing manual small incision cataract surgery

2021 ◽  
Vol 69 (3) ◽  
pp. 586
Author(s):  
Anika Amritanand ◽  
DeepthiE Kurian ◽  
Monseena Mathew ◽  
Mable Keziah ◽  
Grace Rebekah
Keyword(s):  
Visual Acuity ◽  
Cataract Surgery ◽  
Small Incision Cataract Surgery ◽  
Small Incision

scholarly journals Visual and Refractive Outcomes of Small-Incision Lenticule Extraction in High Myopia: 5-Year Results

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Alper Ağca ◽  
İhsan Çakır ◽  
Beril Tülü Aygün ◽  
Dilek Yaşa ◽  
Yusuf Yıldırım ◽  
...  
Keyword(s):  
Visual Acuity ◽  
High Myopia ◽  
Spherical Equivalent ◽  
Small Incision Lenticule Extraction ◽  
Distance Visual Acuity ◽  
Small Incision ◽  
Refractive Outcomes ◽  
Lenticule Extraction ◽  
The Mean

Purpose. To report long-term visual and refractive results of small-incision lenticule extraction (SMILE) in treatment of high myopia. Materials and Methods. Medical records of patients who underwent SMILE for surgical correction of myopia or myopic astigmatism were retrospectively reviewed. Only patients with a preoperative spherical equivalent of subjective manifest refraction (SE) ≥ 6 D and a postoperative follow-up of 5 years were included in the study. Uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), and SE were analyzed preoperatively and at 1-, 3-, and 5-year postoperative periods. Results. Thirty-seven eyes of 37 patients were included in the study. The mean attempted SE was −7.47 ± 1.10 D (range −6.00 to −10.00 D). At the 5-year visit, the mean difference between achieved and attempted SE was −0.43 ± 0.47 (0.50 to −1.25 D). Mean postoperative UDVA and CDVA were 0.20 ± 0.18 and 0.06 ± 0.08 logMAR, respectively. At the 1-year visit, 70% and 97% of the eyes were within ±0.50 D and ±1.00 D of the intended correction. At the 5-year follow-up, 59% and 92% percent of the eyes were within ±0.50 D and ±1.00 D of the intended SE, respectively. At the 5-year visit, the efficacy index was 0.89 ± 0.26 and the safety index was 1.16 ± 0.20. Fifty-four percent of the eyes gained one or more lines of CDVA. Conclusion. SMILE with an intended correction of up to a spherical equivalent of 10 D is safe and effective. However, there is regression of the refractive effect over extended follow-up.

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