Intraocular Pressure Reduction Following Cataract Surgery: Associations With Lens And Anterior Segment Morphology
Published 2026 - 44th Congress of the ESCRS
Reference: POCAT563 | Type: Poster | DOI: 10.82333/j7nm-4h61
Authors: Dr Konstantinos Pappelis* 1 , Ms Chrysa Agapitou 1 , Ms Alexia Risi-Koziona 1 , Ms Evangelia Basagianni 1 , Dr Odysseas Georgiadis 1 , Prof. Panagiotis Theodossiadis 1 , A/Prof. Irini Chatziralli 1 , A/Prof. Efthymios Karmiris 1
1Second Department of Ophthalmology, Medical School ,Attikon University Hospital,Athens,Greece
Purpose
To examine the association between pre-/post-operative anterior segment (AS) parameters and intraocular pressure (IOP) reduction, following phacoemulsification.
Setting
This prospective study is carried out in the Ophthalmology Clinic of Attikon University Hospital, a public tertiary center. Data collection is expected to end in August 2026.
Methods
One hundred patients recruited from the cataract office of our clinic and undergoing phacoemulsification in at least one eye will be included at the end of this study. Data from both eyes is being obtained, when available. IOP is measured pre- and post-operatively (14 days after steroid eyedrop cessation), by means of Goldmann Applanation Tonometry. Lens morphology (vault and thickness) and AS parameters (central corneal thickness, pupil diameter, white-to-white distance, anterior chamber depth, and anterior chamber angle characteristics) are quantified pre- and post-operatively (whenever applicable), by means of AS-OCT. Linear mixed models will be used in the statistical analysis, to account for inter-eye correlations.
Results
Upon completion of this study, we will have determined which (if any) lens- or AS-related variables are significant predictors of the already documented post-operative IOP reduction. Based on these variables, a reduced predictive model will be built.
Conclusions
Our study will provide additional insight on the poorly understood mechanisms behind IOP reduction post-phacoemulsification. The proposed model may be applied in independent populations, in order to assess its predictive ability. These findings may pertain to the future management of glaucoma patients.