Posters

Visual and refractive outcomes in patients with high astigmatism following cataract surgery with toric lens implantation

Poster Details

First Author: L.Kobayter Helayhel IRELAND

Co Author(s):    P. Mullaney                    

Abstract Details

Purpose:

To audit the visual and refractive outcomes following all cases of cataract surgery with toric lens implantation between 2012-2015 in a rural general hospital setting

Setting:

Ophthalmology Department, Sligo Regional Hospital, Sligo, Ireland

Methods:

A retrospective audit of 33 eyes of 23 patients with differences in keratometry readings (delta k) above 2.50 (ranging from 2.97 - 8.44) and a visually significant cataract undergoing cataract surgery with toric lens implantation, was conducted. Visual and refractive outcomes were obtained at their routine postoperative assessment (one month following surgery) and compared to preoperative data and international standards

Results:

Postoperatively, both mean unaided (UDVA) and best corrected distance visual acuities (BCDVA) improved significantly compared to the mean preoperative visual acuity. LogMAR 0.87 +/- 0.64 (Snellen: 6/48) preoperatively vs. 0.38 +/- 0.2 (Snellen: 6/15) UDVA and 0.19 +/- 0.18 (Snellen: 6/9.5) BCDVA, p less than 0.0001. In 21% of patients there was no difference between the UDVA and the BCDVA, allowing for complete spectacle independence. Mean delta k values derived from preoperative biometry calculations were: 5.08 +/- 1.3. Postoperatively, the majority of patients (67%) had a residual refractive cylinder of -1.5 or less, and the overall mean residual cylinder was -1.62 +/- 1.33.

Conclusions:

Toric lens implantation can be safely and effectively incorporated into a general cataract surgery list and can serve to correct high values of corneal astigmatism, allowing for relative or complete spectacle independence. Our postoperative unaided visual acuities are comparable to international studies using toric lens implantation during cataract surgery.

Financial Disclosure:

NONE