Session Title: Refractive II
Session Date/Time: Saturday 04/02/2012 | 08:30-11:00
Paper Time: 09:51
Venue: Grand Ballroom
First Author: : S.Stebnev RUSSIAN FEDERATION
Co Author(s): : S. Stebnev
Purpose:
The purpose - to study possibilities of optical biometer «LENSTAR LS900» in calculation of IOL in surgery of cataracts.
Setting:
Ophthalmologic clinic SURGERY OF EYE, Samara, Russia
The Samara state medical university, Samara, Russia
Methods:
At 100 patients at the age of 65.81 ± 12.97 years which have arrived on surgery of a cataract, besides traditional preoperative inspection, on the device «LENSTAR LS900» 9 biometric measurements and calculations of IOL under formulas «Holladay», ""Haigis"", «Hoffer Q» on sph 0,00±0,5 are spent. At receipt visual acuity of patients 0,14±0,01 (from 0,01 to 0,6), IOP 12,7 ± 4,1 mm hg, length of an axis of an eye 24,34±2,33 mm, depth of the anterior chamber 3,11±0,52 mm, a thickness of a crystalline lens 4,72±0,41 mm, an average refraction of a cornea 43,12±1,34. To all patients phacoemulsification was executed with implantation IOL ««AcrySof IQ with the AcrySert C»» (Alcon) in out-patient treatment conditions. RESULTS Surgical intervention at all patients has passed without complications. Patients are surveyed in 1 month after operation. Visual acuity afar without correction 0,6-1,0. Average spherical clinical refraction 0,38±0,47D By data autorefractometry the deviation of a spherical equivalent from a purpose refraction was ±1,0D at 97 (97 %) patients, ± 0,5D at 81 (81 %), ± 0,25D at 63 (63 %).
Conclusions:
The optical biometer «LENSTAR LS900» allows to count highly precisely IOL and to reach refractions of the purpose at 81 % of patients.
Financial Disclosure:
No
