How Stable Is The Astigmatism Between 1 And 2 Months Following Routine Phacoemulsification?
Published 2024 - 42nd Congress of the ESCRS
Reference: PO387 | Type: Free paper | DOI: 10.82333/ybne-gs51
Authors: Larysa Tutchenko* 1 , Sudi Patel 2 , Fanka Gilevska 3 , Mykhailo Skovron 1 , Oleksiy Voytsekhivskyy 1
1Department of Corneal Pathology, Ophthalmooncology and Oculoplasty,Kyiv City Clinical Ophthalmological Hospital “Eye Microsurgery Center”,Kyiv,Ukraine, 2Cataract Department ,Svjetlost Specialty Eye Hospital,Zagreb,Croatia, 3Department of Refractive Surgery,Eye Clinic Sistina Oftalmologija,Skopje,North Macedonia
Purpose
To determine the induced astigmatism, between 1 and 2 months after uneventful routine phacoemulsification, by objective and subjective refraction and compare the values with normal controls.
Setting
Kyiv City Clinical Ophthalmological Hospital “Eye Microsurgery Center”, Kyiv, Ukraine; Eye Clinic Sistina Oftalmologija, Skopje, Northern Macedonia
Methods
Objective and subjective refraction were monitored between 1 and 2 months postop following phacoemulsification with nontoric IOL implantation (group 1). Surgeries were performed under topical anaesthesia (2.2mm incision, 12o’clock), postop injection of dexamethasone and betamethasone, topical levofloxacin, dexamethason, indomethacin, dexpanthenol, trehalose and hyaluronic acid. Objective refraction was performed on a control group on 2 occasions separated by 1 month (group 2). Data were harvested from a depository of normal age-matched cases that received 2 subjective refractions (separated by 3-5 weeks) by different clinicians (group 3). Refractive data were subjected to vector to determine the astigmatism induced between sessions.
Results
Group 1 included 86 post-phaco eyes, groups 2 & 3 included 31 and 29 eyes respectively. By objective refraction, the astigmatism (mean [±sd]) in group 1 changed significantly (p=0.023) from -1.33DC [±0.85] to -1.16DC [±0.66] and the induced astigmatism (IA) was -0.78DC [±0.67]. In group 2 the change was from -1.26DC[±1.20] to -1.28DC[±1.23] (p>0.05) and the IA was -0.19[±0.16]. The difference between the IA values was significant (p<0.001).
By subjective refraction, the astigmatism in group 1 changed insignificantly from -1.31DC [±0.69] to -1.23DC[±0.54] and IA was -0.78DC [±0.67]. In group 3 the change was from -0.81DC [±0.50] to -0.96DC [±0.60] (p>0.05) and the IA was -0.41[±0.18]. The difference between the IA values was not significant.
Conclusions
Over a period of 1 month, changes in astigmatism by subjective refraction in pseudophakic eyes was small and comparable with the change observed in normal phakic eyes. However, according to the results obtained by objective refraction, significant changes in astigmatism are still occurring between 1 and 2 months postop.