Impact of lens thickness on hyper mature cataract surgical complications: preliminary results of a prospective study

• Published in: Acta ophthalmologica (Oxford, England) England), 2014-09, Vol.92 (s253), p.0-0
• Main Authors: ADDOU‐REGNARD, M, FAJNKUCHEN, F, CHAINE, G, GIOCANTI‐AUREGAN, A
• Format: Article
• Language: English
• Subjects: Ophthalmology
• ISSN: 1755-375X; 1755-3768
• DOI: 10.1111/j.1755-3768.2014.S089.x

Purpose There are no objective parameter allowing to predict the risk of surgical difficulties in white hyper mature cataracts. Lens density can be assessed by pentacam, but this tool is not commonly available. Our purpose was to assess the correlation between lens thickness (LT) and surgery complications. Methods We conducted a prospective, observational, and monocentric study. We included all patients operated on for white hyper mature cataract from january 2013 to march 2014. We selected patients with a visual acuity (VA) lower than 20/200 on the Monoyer scale. We excluded patients suspect of zonula fibers weakness. Morphological features assessed were LT, axial length, depth of anterior chamber and vitreous length, measured by A or B ulrasound scan. The other parameters assessed were the surgical duration, complications during surgery, VA and corneal edema at the seventh day after surgery (analogic scale from 0 to 3). Results We included 30 eyes of 29 patients. Mean LT was 4.11 ± 0.64 mm, with a median of 3,89 mm. The Pearson correlation coefficient (PCC) between LT and operative duration was 0.27. The PCC between lens thickness and length of anterior chamber was ‐0.32. The PCC between LT and BCVA at the 7th day after surgery was ‐0.53. Two groups were defined: group 1 with LT < 3.89mm, and group 2 with LT > 3.89mm. Mean length of the anterior chamber were respectively 3.48 and 3.02 mm (p=0.01). Three per operative complications were noted. Conclusion LT in white hyper mature cataract did not seem to be correlated with duration of the surgery. However, it seemed to be inversely correlated with the depth of anterior chamber and with visual acuity at the 7th day.