Effect on corneal endothelial cell count of traumatic microhyphaema and hyphaema

AbstractWe developed a new method to retrieve a dropped nucleus of the lens via a small incision using bipolar pencils, the kebab technique, to solve the lack of small-gauge fragmatomes, and the expense and toxicity of perfluorocarbon liquids (PFCL). A total of 8 eyes in 6 patients underwent this technique and were reviewed. After vitrectomy, the dropped nucleus of the lens was lifted from the retina by adhesion with a bipolar pencil, and phacoemulsification was performed while rotating the lens. The outcome measures were best-corrected visual acuity (BCVA), intraocular pressure (IOP), and corneal endothelial cell density before and after surgery. Surgical indications included zonular weakness, trauma, acute angle closure attack, and phacolytic glaucoma. At 1 month, BCVA improved from a mean (standard deviation, SD) 1.67 logMAR (0.90) to 1.14 logMAR (1.01). The mean preoperative IOP was 24.5 (16.8) mmHg and postoperative IOP was 11.0 (2.8) mmHg. The mean preoperative corneal endothelial cell count was 2600 (322) cells/mm2 (one eye was unmeasurable) and postoperative corneal endothelial cell count was 2387 (431) cells/mm2. There were no postoperative complications. The retrieval of a dropped nucleus of the lens using a bipolar pencil enables small incisions without using PFCL.

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Comparison of corneal endothelial cell count and intraocular pressure in pure-dispersive and dispersive-cohesive viscoelastic protection in phacoemulsification surgery

Journal of thee Medical Sciences (Berkala Ilmu Kedokteran) ◽

10.19106/jmedscie/005003201812 ◽

2018 ◽

Vol 50 (3) ◽

Author(s):

Agung Nugroho ◽

R Haryo Yudono

Keyword(s):

Intraocular Pressure ◽

Endothelial Cell ◽

Cell Count ◽

Corneal Endothelial Cell ◽

Endothelial Cell Count

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The Kebab Technique: Using a Bipolar Pencil to Retrieve a Dropped Nucleus via a Small Incision

10.21203/rs.3.rs-127746/v1 ◽

2020 ◽

Author(s):

Hiroshi Aso ◽

Harumasa Yokota ◽

Hirotsugu Hanasaki ◽

Satoru Yamagami ◽

Taiji Nagaoka

Keyword(s):

Intraocular Pressure ◽

Endothelial Cell ◽

Cell Count ◽

Acute Angle ◽

Corneal Endothelial Cell ◽

Angle Closure ◽

Endothelial Cell Count ◽

Small Incision ◽

Before And After ◽

The Mean

Abstract We developed a new method to retrieve a dropped nucleus via a small incision using bipolar pencils, the kebab technique, to solve the lack of small-gauge fragmatomes, and the expense and toxicity of perfluorocarbon liquids (PFCL). A total of 8 eyes in 6 patients underwent this technique and were reviewed. After vitrectomy, the dropped nucleus was lifted from the retina by adhesion with a bipolar pencil, and phacoemulsification was performed while rotating the lens. The outcome measures were best-corrected visual acuity (BCVA), intraocular pressure (IOP), and corneal endothelial cell density before and after surgery. Surgical indications included zonular weakness, trauma, acute angle closure attack, and phacolytic glaucoma. At 1 month, BCVA improved from a mean ± SD 1.67 logMAR (± 0.90) to 1.14 logMAR (± 1.01). The mean preoperative intraocular pressure (IOP) was 24.5 (± 16.8) mmHg and postoperative IOP was 11.0 (± 2.8) mmHg. The mean preoperative corneal endothelial cell count was 2600 (322) cells/mm2 (one eye was unmeasurable) and postoperative corneal endothelial cell count was 2387 (± 431) cells/ mm2. There were no postoperative complications. The retrieval of a dropped nucleus using a bipolar pencil enables small incisions without using PFCL.

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A Comparative Study of Corneal Endothelial Cell Count and Central Corneal Thickness in Emmetropia and Axial Myopia

Journal of Evolution of Medical and Dental Sciences ◽

10.14260/jemds/2020/725 ◽

2020 ◽

Vol 9 (44) ◽

pp. 3300-3304

Author(s):

Vandana Panjwani ◽

Sachin Daigavane

Keyword(s):

Endothelial Cell ◽

Comparative Study ◽

Cell Count ◽

Axial Length ◽

Central Corneal Thickness ◽

Corneal Thickness ◽

Corneal Endothelial Cell ◽

Specular Microscopy ◽

Endothelial Cell Count ◽

Axial Myopia

BACKGROUND The main attributes of cornea which makes it optically important is its ability to maintain its dehydrated state. This corneal dehydration can be achieved and maintained by various factors among which corneal endothelial cell count and morphology play a significant role. Corneal attributes considered in this study i.e. the corneal endothelial cell count and central corneal thickness are extremely variable, and changes are seen even with smaller changes in anterior segment or overall structural changes in eyes. We wanted to compare central corneal thickness in emmetropia and axial myopia and compare corneal endothelial cell count in emmetropia and axial myopia. METHODS The sample size was decided taking into consideration various prevalence studies. The patients were consecutively recruited for the study considering the inclusion and exclusion criteria. The subjects were divided into two groups emmetropia and axial myopia and were differentiated on the basis of the axial lengths. Specular microscopy was performed for the subjects and corneal endothelial cell count, morphology and central corneal thickness were measured, and comparative study was performed. RESULTS This study of 80 eyes shows us that the difference between mean the corneal endothelial cell count between emmetrope (2812.80 cells / mm2) and axial myopes (2653 cells / mm2) is statistically significant where p was < 0.05 while the mean central corneal thickness measurements didn’t show statistically significant change between emmetrope (490.05 microns) and axial myope. (489.37 microns). CONCLUSIONS Axial length has an indirect correlation with the corneal endothelial cell count which is statistically significant. While significant correlation between the central corneal thickness and axial length cannot be established in this study. KEY WORDS Emmetropia, Axial Myopia, Corneal Endothelial Cell Count, Central Corneal Thickness, Comparison

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The Importance of Evaluation of Corneal Endothelial Cell Count in Glaucoma Patients

Journal of the Korean Ophthalmological Society ◽

10.3341/jkos.2012.53.1.37 ◽

2012 ◽

Vol 53 (1) ◽

pp. 37 ◽

Cited By ~ 1

Author(s):

Tae Hoon Oh ◽

Dong Jin Chang ◽

Jae Woo Kim ◽

Jung Il Moon ◽

Hyun Seung Kim

Keyword(s):

Endothelial Cell ◽

Cell Count ◽

Corneal Endothelial Cell ◽

Endothelial Cell Count

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Mean Corneal Endothelial Cell Loss in Type 2 Diabetic Cataract Patients After Phacoemulsification.

Pakistan Journal of Ophthalmology ◽

10.36351/pjo.v36i1.908 ◽

2020 ◽

Vol 36 (1) ◽

Author(s):

Syed Abdullar Mazhar ◽

Sehar Zahid ◽

Junaid Hanif ◽

Muhammad Asharib Arshad ◽

Rana Naveed Iqbal

Keyword(s):

Type 2 Diabetes ◽

Endothelial Cell ◽

Cell Count ◽

Cell Loss ◽

Corneal Endothelial Cell ◽

P Value ◽

Specular Microscopy ◽

Endothelial Cell Loss ◽

Endothelial Cell Count

Purpose: To assess the mean corneal endothelial cell loss after Phacoemulsification in patients of type 2 diabetes. Study Design: Cross-sectional study. Place and Duration of Study: Layton Rahmatullah Benevolent Trust Free Eye and Cancer Hospital for a period of six months, from May 2015 to November 2015. Material and Methods: Three hundred and fifty-five patients were selected by non-probability convenience sampling. Patients with cataract, diagnosed at least after 6 months of diagnosis of type 2 diabetes were included in this study. Patients with any systemic disease or ocular disease other than senile cataract were excluded from the study. Endothelial cell count was measured with Specular microscopy one day before surgery. One experienced surgeon with post-graduate experience of at least five years performed all the procedures. Follow up by specular microscopy was done at 6 weeks after phacoemulsification. Statistical analysis was done using SPSS version 23. Results: Mean age of the patients was 59.32 ± 7.60 years. There were 41.97% males and 58.03% females. Mean endothelial cell count before phacoemulsification was 2177.21 ± 591.078 and 6 weeks after surgery was 1984 ± 597.51. Age, gender, laterality, duration of diabetes and type of cataract was not significantly related with endothelial cell loss, p-value > 0.05. Mean endothelial cells loss was higher in patients with HbA1c > 7 as compared to those with HbA1c < 7 (p-value = 0.01). Conclusion: Patients with poor control of diabetes have higher endothelial cell loss after phacoemulsification than patients with good control.

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A Comparative Study of Two Types of Implantation Surgery Methods for Implantable Collamer Lenses

Journal of Ophthalmology ◽

10.1155/2021/4074773 ◽

2021 ◽

Vol 2021 ◽

pp. 1-8

Author(s):

Hao Liu ◽

Denghao Dong ◽

Chunlin Chen ◽

Jian Ye

Keyword(s):

Visual Acuity ◽

Endothelial Cell ◽

Cell Count ◽

Anterior Chamber ◽

Operation Time ◽

Corneal Endothelial Cell ◽

Distance Visual Acuity ◽

Endothelial Cell Count ◽

Group 2 ◽

Group 1

Purpose. To investigate the effects of two different surgical methods of implantable collamer lens (ICL) implantation on the operation time, visual outcomes, corneal endothelial cell count, and intraocular pressure (IOP). Methods. This was a contralateral eye comparison study, a total of 192 eyes from 96 patients were included, and the two eyes from the same patient were randomly assigned to two groups (group 1 and group 2, with 96 eyes in each group). In group 1, after making the corneal incision, ophthalmic viscosurgical devices (OVDs) were first injected into the anterior chamber followed by ICL implantation. In group 2, the ICL was first implanted into the anterior chamber followed by OVDs injection. The operation time, uncorrected distance visual acuity, corrected distance visual acuity, spherical equivalent, corneal endothelial cell count, and IOP were recorded and analyzed. Results. The operative time in group 1 was significantly longer than that in group 2 ( P = 0.002 < 0.05). There were significant differences between IOP measured 2 hours following surgery of the two groups ( P = 0.026 < 0.05), Furthermore, the rate of IOP change 2 hours following the operation was significantly higher in group 1 than in group 2 ( P = 0.019 < 0.05). There were significant differences in the anterior chamber angle 2 hours after surgery compared with that before surgery in both groups ( P = 0.014 < 0.05 and P = 0.029 < 0.05, respectively). No significant differences were observed in the other parameters measured (all P > 0.05). Conclusion. The two ICL implantation methods had similar clinical outcomes and effects on the corneal endothelial cell count. Additionally, the implantation of an intraocular lens prior to injecting OVDs reduces the operation time and lowers the rate of IOP rise in the early postoperative period, making it safe and effective for ICL implantation.

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