Page 113 - The Indian Optician Digital Edition November-December 2021

During the surgery, these reference marks
were used to determine the desired axis of
IOL orientation, which were then marked
using the meridian (axis) marker. The
marking was performed with dye or ink.
Surgeons operated superiorly or placed the
incision on the steepest axis of astigmatism.
The IOL was placed in the capsular bag
using the Delivery System. No limbal
relaxing incisions or any other surgical
procedures were allowed. Surgery on the
second eye followed 7 to 30 days after the
surgery on the first eye.

Postoperative examinations were
performed a day after the implantation
of each IOL. All subsequent postoperative
examinations were designated a month
after the date of the IOL implantation.

At every postoperative examination,
toric IOL orientation was determined by
examining the eye at the slit-lamp and
noting the IOL axis, designated by 6 laser

Demographic and Preoperative Parameters
in Astigmatic Eyes that underwent
cataract surgery with toric intraocular lens
implantation
Toric IOL (n= 108 marks on the optic of the IOL. Manifest refraction,
Parameter
patients, 216 eyes) monocular uncorrected distance visual acuity
Male/Female (%) 44/56 (UDVA), and corrected distance visual acuity (CDVA)
were examined in the first month. The subjective
Age (Y) 59.39
questionnaires were again distributed in the first
Sphere (D) -0.3495 month.
Cylinder (D) -1.09954 The population included 60 males and 48

Mean Spherical -0.89931 female subjects, ranging from 18 to 85 years of age.
Equivalent Refraction (D)
After the implantation of toric IOL, 166 patients
Postoperative Parameters in Astigmatic Eyes have 6/6 visual acuity, 49 patients have 6/9 visual
that underwent cataract surgery with toric acuity, and 1 patient has 6/12 visual acuity. There
intraocular lens implantation was no significant difference between pre and
Toric IOL (n= 108 post-K-reading. The postoperative visual acuity
Parameter
patients, 216 eyes) was better though and there was no residual
astigmatism because it was corrected by the
Sphere (D) -0.03 implantation of toric IOL.
Cylinder (D) -0.02
RESULTS
Mean Spherical -0.04
Equivalent Refraction (D) Objective visual outcomes and subjective visual
experience after the bilateral implantation of toric
TABLE I: PRE AND POSTOPERATIVE
REFRACTIVE ERROR intraocular lenses were compared. A prospective

109 | CASE STUDY