Useful Prediction of Phacodynamics by Scheimpflug Lens Densitometry in Patients over Age 70.
OBJECTIVE
To evaluate the relationship between lens density using the Scheimpflug system and phacodynamics in nuclear cataracts as related to patient age.


METHODS
In 262 eyes with nuclear cataracts, the objective lens density was determined by Pentacam Nucleus Staging (PNS) software while subjective grading was achieved using the Lens Opacities Classification System III (LOCS III).


RESULTS
Overall, cumulated dissipated energy (CDE) had a positive correlation with Scheimpflug lens density and LOCS III nuclear scores. When analysis was done by patient age, LOCS III nuclear scores and Scheimpflug lens density had a positive correlation with CDE for patients in all age groups. Of interest, patients >70 years old showed a higher correlation coefficient (r) with Scheimpflug lens density than with LOCS III nuclear score.


CONCLUSIONS
Scheimpflug lens densitometry may be more useful for predicting phacodynamics than LOCS III scores in nuclear cataract patients, especially in old age (>70 years).
a Department of Ophthalmology and Visual Science , Seoul St. Mary's Hospital, The Catholic University of Korea , Seoul , Korea.|b Catholic Institute for Visual Science , The Catholic University of Korea , Seoul , Korea.
Sung-A
SA
Lim
a Department of Ophthalmology and Visual Science , Seoul St. Mary's Hospital, The Catholic University of Korea , Seoul , Korea.
Ji-Young
JY
Shin
a Department of Ophthalmology and Visual Science , Seoul St. Mary's Hospital, The Catholic University of Korea , Seoul , Korea.|b Catholic Institute for Visual Science , The Catholic University of Korea , Seoul , Korea.
So-Hyang
SH
Chung
D000368:Aged; D000369:Aged, 80 and over; D002386:Cataract / Q000175:diagnosis* / Q000503:physiopathology; D003720:Densitometry / Q000379:methods*; D003941:Diagnostic Techniques, Ophthalmological; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007908:Lens, Crystalline / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D014792:Visual Acuity
Age; Lens Opacities Classification System III; Scheimpflug lens density; cumulated dissipated energy; nuclear cataract