I used a phacometer to measure the refractive index of the lens.

Phacometers are used to measure the refractive power of the eye.

Phacofragmentation is a common surgical procedure used to remove cataracts.

The patient underwent phacovitrectomy to treat his retinal detachment.

The phacomorphic lens caused blurred vision.

Phacoliths are large, lens-shaped bodies of intrusive igneous rock that form in the ductile regime of the Earth's crust.

The geologist discovered a massive phacolith during the excavation.

Phacoemulsifiers are used in cataract surgery to break up the lens for removal.

The surgeon used a phacoemulsifier during the cataract surgery.

Phacodynamics is an important concept in ophthalmology.