Comparative Analysis Of The Postoperative Characteristics Of Different Types Of Premium Intraocular Lenses

To describe the clinical approach used in Pentagram eye hospital and the results within our survey on the postoperative characteristics of different types of IOL’s.

Comparative survey between four IOL’s: standard monofocal IOL, mono “plus” IOL, EDOF IOL and a trifocal IOL. The patients were separated into four groups, each one including ten patients who underwent standard phacoemulsification cataract surgery with implantation of specific type of IOL. 

The IOL characteristics were evaluated on several different parameters: autorefractometry, uncorrected distance visual acuity, best corrected distance visual acuity, uncorrected intermediate visual acuity, uncorrected near visual acuity, corrected near visual acuity, contrast sensitivity testing for mesopic conditions with and without glare effect simulation, corneal and total aberrometry and standardized patient questionnaire /NEI/.The patient criteria included presence of senile cataract, BCVA less than 0.5 decimal, prognosed postoperative astigmatism less than 0.75dpt, vital ocular anamnesis of relative emmetropia, lack of any other type of ophthalmic pathology, lack of PCO, postoperative period of more than 3 months.

All types of lenses demonstrated CDVA of 1.0 decimal. UNIVA showed increase in the different groups from 0,32 to 0.8 decimal. For UNVA the results were between 0.2 and 0.8 decimal. The required “+” spherical correction, in other words “IOL’s depth of focus“ was measured: between +2.50 and 0 dpt. With the evolution of IOL’s optic contrast sensitivity tests showed progressive lowering in both cases/with and without glare effect/. The two types of aberrometry didn’t show any differences when it comes to the presence of high order aberrations More developed the IOL’s optic was, more common were glare, starburst and halo.

The presented data can serve as a convenient and practice-oriented algorithm aimed at an individualized approach to the patient, achieving high levels of visual rehabilitation and a sustained sense of satisfaction. Demonstrated results unequivocally show a set of characteristics that cannot be categorically interpreted in the context of "ranking", but could be useful in everyday practice.