search information related to IOL, biometry, corneal topography, etc.

Understanding the basics of optics is essential for eye care professionals because it enables them to accurately diagnose and manage...

Patients with multifocal IOLs are implanted with an expectation that they would be spectacle or glass free for distance, intermediate and near. However, it is not uncommon for patients to land up with refractive surprise and may need glasses. Earlier in the article ' The Mystery of the Near with Presbyopia Correction IOL' ( https://www.quickguide.org/post/problem-with-near-vision ), I had written how a steep or flat cornea and a long or short axial length may impact the near

Explains how the Toric IOL nomenclature works and how the IOL power is distributed in the IOL optics for a spherical equivalent IOL power of 10 diopters and a Toric model of T4 or T5

This article provides insights into the different modern IOL power calculation formulas like the Barrett Universal, Kane and EVO formula

The following table will help in the choice of EDOF IOL based on spherical aberration of the cornea of the patient and the induced spherical aberration by the IOL

Cataract surgery is one of the most common procedures performed worldwide, helping millions regain clear vision each year. For patients, choosing the right Intraocular Lens (IOL) is a significant decision during this process. The two primary types are Extended Depth of Focus (EDOF) lenses and Monofocal lenses. Understanding the differences between these options can empower patients to make informed choices that fit their lifestyles and vision needs.

This article provides an understanding of circle of least confusion or best focus in presence of spherical aberration and what kind of spherical aberration may provide a better depth of focus

finding the cut off value for mesopic pupil size may be important for clinicians to ensure that patients have a good distance vision even in low light

How does the Panoptix Pro utilize more light and reduce light scatter.

Why some patients may not be happy with an EDOF IOL.

Reference: Holladay, Jack T. MD, MSEE; Kozhaya, Karim MD; Koch, Douglas D. MD; Wang, Li MD, PhD, Impact of spherical aberration on visual...

Explains how does the Tecnis PureSee IOL provide depth of focus and intermediate vision to patients.

Difference between the Snellen chart and the ETDRS chart based on logmar

standard way of diffractive trifocal IOL manufacturing has been to use the 0 order for distance, & the +1 & +2 orders intermediate & near