الفهرس 
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Abstract
Pentacam provides qualitative and quantitative assessment of the anterior segment structures important to the pathogenesis and the anatomical variations of glaucoma, and the approach to and success of different techniques of surgical intervention.
The current study aimed to compare anterior segment pentacam changes after phacoemulsification versus combined phaco-trabeculectomy in primary angle-closure glaucoma whose attend to ophthalmology departemnt, Sohag university hospital.
Results of the current study could be summerized.
According to Refraction: We noted there were non-significant differences between both groups regarding baseline UCVA or the follow-up. there were non- significant differences between both groups regarding baseline BCVA or the follow-up, And there were non-significant differences between both groups regarding efficacy or safety.
According to keratometry: there were non-significant differences between both groups regarding baseline K1 or the follow-up. And, there were non- significant differences between both groups regarding baseline K2 or the follow- up. And, there were non-significant differences between both groups regarding baseline Km or the follow-up. And, there were non-significant differences between both groups regarding baseline keratometric astigmatism or the follow-up.
According to Cornea: there were non-significant differences between both groups regarding baseline apex pachymetry or the follow-up, there were non- significant differences between both groups regarding baseline Thinnest part or the
follow-up, there were non-significant differences between both groups regarding baseline Corneal volume or the follow-up.
According Anterior Chamber: there were non-significant differences between both groups regarding baseline Anterior chamber depth or the follow-up, there were non-significant difference between both groups regarding baseline Anterior chamber angle, non-significant differences between both groups at 1 month, 3 months, 6 months, there were non-significant differences between both groups regarding chamber volume follow-up at 1 month, 3 months and 6 months, non-significant differences between both groups regarding baseline Chamber volume and follow-up.
In conclusion, phacoemulsification alone can reduce IOP and the requirement for glaucoma drugs in PACG eyes. Combined surgery may provide additional benefits in patients with advanced glaucoma or that suffering from side effects of glaucoma medications; Pentacam was useful in the demonstration of changes after phacoemulsification in patients with PACG. Both phacoemulsification only and phacoemulsification combined with trabeculectomy showed good surgical outcomes in PACG patients. Both procedures might be equally effective in treating patients with PACG.
The clinical benefits of the additional IOP lowering must be carefully weighed against the risks and complications of surgical complications arising from combined surgery.
To best of our knowledge, our study is the first study to measure and follow up corneal topographic data including K1, K2, Km, Astigmatism, apex Pachymetry and Corneal volume of treatment of the PACG using Pentacam.
Therefore, we recommend further additional future multicenter studies with larger sample sizes and long-term follow-up durations to investigate and evaluate effect different surgical techniques of ACG on Refraction, Cornea, and Anterior Chamber.