Effect Of 2.8 Mm Steep-Axis Clear Corneal Incision On Corneal Curvature In 3-Port Topical Phacoemulsification
Published 2024 - 42nd Congress of the ESCRS
Reference: PO507 | Type: Free paper | DOI: 10.82333/0nvp-ks80
Authors: Tanie Natung* 1 , Ester Sekhose 1 , Subhankar Paul 1 , Pritisha Goswami 1 , Mayank Gupta 1 , Hanjabam Dhanashree 1
1Ophthalmology,North Eastern Indira Gandhi Regional Institute of Health & Medical Sciences,Shillong,India
Purpose
To study the effect of 2.8 mm steep-axis clear corneal incision on corneal curvature in 3-port phacoemulsification
Setting
Tertiary Care Centre
Methods
Inclusion criteria: uncomplicated adult cataract, where optical biometry possible, uneventful 3-port topical phacoemulsification. Exclusion criteria: corneal pathologies, steep axis falling in supero-nasal quadrants: 0-89 degrees OD and 91-180 degrees OS, deep set eyes with steep axis in superior quadrant. Total: 76 eyes of eligible patients. Pre and post-operative biometry by IOL master 500. SIA calculated by online SIA calculator.
Results
Mean age, pre-op K2 (steeper), post-op K2, pre-op cylinder and post-op cylinder were 62.59±11.10 years, 44.69±1.83 D, 44.95±1.717 D, -0.567±0.262 D and -0.680±0.417 D respectively. 45 females and 31 males. Paired t-test used for statistics. Statistically significant decrease from pre to post-surgery cylinder. Overall Mean, Median, Centroid SIA: 0.69, 0.55, 0.25 OD and 0.62, 0.58, 0.21 OS respectively.
Conclusions
2.8 mm steep-axis clear corneal incision effectively decreases the corneal astigmatism in 3-port phacoemulsification. This is helpful in those patients who cannot afford Toric IOLs.