Posters

Comparison between stereopsis of several distances of patients with monovision and patients implanted with trifocal IOLs

Poster Details

First Author: T.Ohashi JAPAN

Co Author(s):                        

Abstract Details

Purpose:

To evaluate the difference of the stereopsis from distant to near of the patients with monovision and patients implanted with trifocal IOLs.

Setting:

Ohashi Eye Center, Sapporo, Hokkaido, Japan.

Methods:

24 patients who underwent cataract surgery were enrolled in this experiment (13 with trifocal IOLs and 11 with monovision). We evaluated stereopsis of patients implanted with trifocal IOLs (AcrySof® IQ PanOptix® Trifocal TFNT00), and monovision (HOYA acryfold and HOYA iSert XY1). The refraction difference in the monovision patients between emmetropic eye and myopic eye was 0.88~3.0 diopter. Stereopsis at the distance of 0.3m, 0.5m, 0.7m, 3m, and 5m was measured by the OCULUS Binoptometer® 4P (OCULUS, Inc).

Results:

“Trifocal” group showed good stereopsis in all distances (at 0.3m 150±140 seconds, at 0.5m 76±21 seconds, at 0.7m 82±38 seconds, at 3m 109±93 seconds, at 5m 143±115 seconds). “Monovision” group showed worse stereopsis in all distances compared to “Trifocal” group (at 0.3m 378±221 seconds, at 0.5m 276±256 seconds, at 0.7m 335±237 seconds, at 3m 416±207 seconds, at 5m 480±224 seconds). Even after the unfocused eyes in “Monovision” group were corrected, they still showed worse stereopsis in all distances compared to the “Trifocal” group (p≺0.05).

Conclusions:

Patients with binocular trifocal IOLs showed better stereopsis compared to the monovision patients in all distances.

Financial Disclosure:

None