Efficacy of SRKT biometry formula

To evaluate the predictive accuracy of SRKT formula in biometry. Two hundred eyes which underwent cataract extraction by phacoemulsification and implantation of a posterior-chamber intraocular lens were included in the study. Depending upon the axial length the patients were divided in four groups. Group-l: Axial length<22 mm, n=28 eyes [14%].Group-2: Axial Length 22.00-24.5 mm, n=136 [68%]. Group-3: Axial Length 24.6-26 mm, n=25 eyes [12.5%]. Group-4: Axial Length > 26 mm, n=11 eyes [5.5%]. In all patients SRKT formula was used to calculate the power of intraocular lens. Group-I: The mean deviation in refraction was 0.42D with SRKT and 0.56D with RCOphth guidelines. Group-2: The mean deviation in refraction was 0.62D with SRKT and 0.59D with RCO guidelines. Group-3: The mean deviation in refraction was 0.43D with SRKT and 0.41D with RCOphth guidelines. Group-4: The mean deviation in refraction was 0.42D with SRKT [RCOphth recommends the same formula for this length of eye ball]. When the overall mean deviation [of all four groups] was calculated, it was 0.56D for SRKT [range 0 to 2.81D] and was 0.52 D if RCOphth guidelines had been followed. Postoperative BCVA of 6/12 or better was achieved in 197 eyes [98%]. SRKT formula performed credibly in average-length eyes as well as in the long eyes. For short eyes results would have been better if Hoffer Q formula had been used

Comparison of functional and cosmetic outcome in merseline mesh and silicone band used as a frontalis sling in ptosis surgery

The idea to use merseline mesh and silicone band in ptosis surgery and to find an effective, durable, simple, flexible and easily avaible material having less complications and best cosmetic results. Both the silicone band and merseline mesh were used as brow suspension in the form of rhomboid. Most of the cases [85%] were operated under local anaesthesia. Thirty four [Silicone band 18, merseline mesh 16] had good results i.e. within 1 mm of normal and 15% [Silicone band 02, merseline mesh 04] had fair results i.e. they were 2 mm under corrected. Both the materials were effective, inexpensive and provided good results with no recurrence but using silicone band showed better results with lesser complications