Screening Patients With Cataract for Premium IOL Candidacy Using Microperimetry

Area of Science:

• Ophthalmology
• Retinal imaging
• Visual electrophysiology

Background:

• Cataract surgery requires careful intraocular lens (IOL) selection.
• Macular function significantly impacts visual outcomes after cataract surgery.
• Subtle macular dysfunction may not be apparent with standard ophthalmic examinations.

Purpose of the Study:

• To evaluate microperimetry for assessing macular dysfunction in cataract patients.
• To assist in choosing between multifocal and monofocal intraocular lenses.
• To establish realistic postoperative visual function expectations.

Main Methods:

• The MAIA microperimeter was used to assess macular sensitivity and fixation in 10 patients with mild to moderate cataracts.
• Evaluations were conducted before and one week after cataract surgery.
• Standard ophthalmic tests including visual acuity and fundus examination were also performed.

Main Results:

• Two patients exhibited macular abnormalities detected by microperimetry, including reduced sensitivity and eccentric fixation.
• These abnormalities were present both pre- and post-surgery.
• Both patients experienced reduced visual performance after uneventful cataract surgery.

Conclusions:

• Microperimetry can identify clinically significant retinal dysfunction before cataract surgery, complementing fundus examination and optical coherence tomography.
• This assessment aids in IOL selection and provides a more documented surgical prognosis.
• Further research is needed to validate these findings and their clinical utility.