Unilateral axial length elongation with chronic traumatic cataracts in young Kenyans.

Citation:
Gradin D, Gichuhi S. "Unilateral axial length elongation with chronic traumatic cataracts in young Kenyans. ." J Cataract Refract Surg . 2008;34(9):1566-1570.

Abstract:

PURPOSE:
To assess whether unilateral axial elongation in chronic traumatic cataract is associated with the time interval from trauma to surgery.

SETTING:
PCEA Kikuyu Hospital Eye Unit, Nairobi, Kenya.

METHODS:
This retrospective cohort study analyzed patients with traumatic cataract operated on between 1998 and 2007. Study patients (n = 13) had a delay from trauma to surgery of more than 1 year and an interocular axial length (AL) difference greater than 1.0 mm. Randomly selected age-matched control patients (n = 14) had less than 1 year delay between trauma and surgery. The correlation between interocular AL difference and surgical delay was calculated in each group.

RESULTS:
The median interval from trauma to surgical treatment in study patients was 8 years (range 1 to 27 years). Study patients had a significantly higher median interocular AL difference (3.09 mm; interquartile range [IQR] 2.45 to 4.13 mm) than control patients (0.24 mm; IQR 0.15 to 0.30 mm) (P = .000). The length of delay from trauma to surgical treatment did not correlate strongly with the interocular AL difference in study or control patients (R(2) = 0.0143 and R(2) = 0.1697, respectively).

CONCLUSIONS:
Unilateral AL elongation may occur in young adults with chronic traumatic cataract. Delay of more than 1 year from trauma to surgery was associated with axial elongation, although the degree of elongation did not correlate with duration of delay. Surgeons are advised to implant lower-power intraocular lenses in such patients based on biometry readings to avoid postoperative refractive surprises.

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