Saeed Zafar Khan, Naeem Rustam, Ahmed Zeeshan Jamil, Zahid Kamal Siddiqui.
Biometric Assessment of Cataract Cases by using Immersion Technique in Phacoemulcification with foldable IOL.
Ophthalmol Update Jan ;13(3):234-6.

Objective: The purpose of this study was to determine the accuracy and safety of A scan immersion biometry by using prager shell in cases of cataract surgery by phacoemulcification with foldable intra ocular lens. Materials and Methods: This retrospective study of 100 cases conducted at eye unit of university of Punjab and Iqra Medical Complex Lahore from March 2008 to December 2010. After history and complete ocular examination the clinical diagnosis of cataract was established. The biometric assessment was carried out by using immersion technique. All cases under went phacoemulicifaction with foldable IOL. The A scan instrument Axis 11 PR with Prager Shell (Quintal medical ?France) was used. Results: One hundred patients were included in this study. There were 45 male and 55 female patient. The right eye was studied in 47 % of cases while left eye in 53 % of patients .The mean age of the patient was 64+-11 years (TABLE 1).The post operative mean spherical equivalent was recorded + 0.75 D in 65% of patients and between -0.75 to -1.50 D in 23 % of cases ,only 12 % of cases had +0.75 to +1.50 D of the intended results (table 2). The average keratometry readings of all the cases was recorded 44.78 (range was 41.25 to 47.25 diopter). The mean preoperative axial length was 22.86 + 1.12 mm (range was 21.76 to 23.89 mm). The mean intraocular lens power was 21.25 + 2.75 D with a range +18.50 to + 24.75 D (Table 4). Conclusion: In conclusion, the immersion A scan biometry is a very useful diagnostic technique as it eliminates corneal compression by using prager shell. The same biometric equipment allowed the cataract surgeon with high predictability and reproducibility.

PakMediNet -Pakistan's largest Database of Pakistani Medical Journals - http://www.pakmedinet.com