Qualitative Alterations on Corneal Endothelial Cell Morphometry and Hexagonality After Cataract Surgery

Figures & data

Figure 1 Interval plots. Single values and 95% confidence interval plots of ECL%, AVG% and HEX% depending on the 5-score harm scale.

Abbreviations: ECL%, percentage of endothelial cell loss; AVG%, percentage of average cell area; HEX%, percentage of hexagonality.

Figure 2 The quadratic trend of AVG% depending on ECL%. This trend can be described with two lines: a flat one in the first part up to ECL% around 50% and AVG% around 100%, and a steep one for the second part of the curve.

Abbreviations: ECL%, percentage of endothelial cell loss; AVG%, percentage of average cell area.

Figure 3 Scatter plot of HEX% depending on ECL%. There is no evidence of a specific relation between variables.

Abbreviations: ECL%, percentage of endothelial cell loss; HEX%, percentage of hexagonality.

Figure 4 Bubble plots of Phaco1 and Phaco2. To analyze energies delivered into the anterior chamber during phacoemulsification according to ECL%, AVG%, HEX%.

Abbreviations: Phaco1, phacoemulsification time for nucleus cracking; Phaco2, phacoemulsification time for quadrant removal; ECL%, percentage of endothelial cell loss; AVG%, percentage of average cell area; HEX%, percentage of hexagonality.

Table 1 The 5-Score Harm Scale and the Quantitative/Qualitative Changes of Endothelial Cells for Increasing Scores

Score of Harm Scale	1	2	3	4	5
Hardness	1	1–2	2–3	3–4	4
Phaco1	<10	<16	<22	<28	≥28
Phaco2	<15	<30	<45	<60	≥60
Number of patients	3	11	15	13	8
ECL% Mean ± SE	7.67 ± 1.86	13.36 ± 2.85	31.67 ± 1.66	40.85 ± 2.61	58.13 ± 5.66
AVG% Mean ± SE	8.32 ± 2.09	16.97 ± 5.05	47.47 ± 3.40	72.46 ± 6.37	178.10 ± 29.30
HEX% Mean ± SE	0.01 ± 0.01	0.04 ± 0.02	0.04 ± 0.02	0.09 ± 0.02	0.01 ± 0.03

Abbreviations: Phaco1, phacoemulsification time (s) to do nucleus cracking; Phaco2, phacoemulsification time (s) to do quadrant removal; ECL, endothelial cell loss; SE, standard error; AVG, average cell area; HEX, hexagonality.