Purpose:
To assess the repeatability of ocular measurements, particularly astigmatism, taken using the latest version of an swept-source optical coherence tomography (SS-OCT) device, IOLMaster 700.
Methods:
This prospective observational study done in a private eye care centre. Study included 213 eyes of 152 patients diagnosed with cataract. Axial length (AL), Anterior corneal astigmatism (ΔK), Total corneal astigmatism (ΔTK), Aqueous depth (AD), Lens thickness (LT), Iris barycentre distance (IBD) and White to white distance (WTW) were analysed; three measurements were taken for each patient in the same sitting by the same examiner in an undilated state using the SS-OCT device. Repeatability was analysed using intraclass coefficient (ICC) and coefficient of variation (CV) measures, and astigmatism values were transformed into vector components (J0/J45) and categorised based on magnitude.
Results:
Astigmatism vector components (J0/J45) showed poor repeatability (ICC < 0.5 and CV > 0), while iris coordinates (IBD) and astigmatism magnitude had good correlation (ICC > 0.9) but more variations between the readings which was least for magnitude ≥ 1.5D; however, rest of the parameters demonstrated excellent repeatability (ICC > 0.9 with
P
value < 0.05).
Conclusion:
IOLMaster 700 demonstrated good reliability for the parameters measured, although, for astigmatism and iris barycentre distance, more number of readings and cross reference with other devices may be required to get clinically accurate results.
IntroductionSympathetic ophthalmia (SO) is a rare, bilateral, diffuse granulomatous uveitis that usually occurs after open globe injury or intraocular surgery.MethodsA patient developed SO following therapeutic penetrating keratoplasty (TPK) with cataract extraction in the exciting eye following fungal keratitis. The sympathizing eye presented with only posterior segment findings (exudative retinal detachment) and responded well with oral corticosteroids.ResultsGraft remained clear in the left eye and the right eye; the best-corrected visual acuity (BCVA) improved to 0.2 log MAR.ConclusionSO presenting after TPK for fungal keratitis is a rare occurrence but if detected early can be managed effectively.
SMILE after ICL was effective for managing extreme myopia. Using a low-suction FS laser, visual rehabilitation could be achieved as early as 2 weeks, without additional risks or complications.
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