Lens

Blog for Ophthalmology Residents & Fellows

Lens

Practical notes on the crystalline lens and cataract surgery, covering phacoemulsification technique, chop methods, posterior capsule tear management, and IOL power calculation tools.

Phacoemulsification

Phacoemulsification Tips & Tricks

Posterior Capsulat Tear Management

Posterior Capsulat Tear Management Flowchart

Chop techniques

Basic Phaco Chop techniques

Types of Iridectomy

Types of Iridectomy

IOL Calculators

Online IOL Calculator Tools

LRI Calculator

Nomograms for limbal relaxing incisions

Post-Refractive Surgery IOL Calculation

Why standard formulas fail, and which tools to use

SRK II, SRK/T, Hoffer Q & Holladay 1

Compared, with a working educational SRK II calculator

Phaco Step by Step

A beginner's guide to phacoemulsification

Angle Kappa & Alpha

Chord mu and chord alpha in multifocal IOL selection

Toric IOL Pearls

Rotation loss, posterior cornea and marking

Dysphotopsia

Positive vs negative: causes and management

Sulcus IOL Power

How much to reduce, and optic capture

Monovision

Targets and patient selection

Biometry Rules of Thumb

Error rules and when to recheck

Refractive Surprise

Find the cause, then choose the fix

PXF Cataract Surgery

Small pupils, weak zonules, CTR

ISBCS

Same-day bilateral cataract surgery: evidence

Ocular Anaesthesia

Blocks, complications, doses