Introduction Accurate biometry is an essential component of cataract surgery. Preoperative measurement of axial eye length (AEL), rather than the corneal curvature, is the most critical factor for accurate calculation of the intraocular lens (IOL) power [1]. Aim The aim of this study was to compare axial eye length (AEL) measured by applanation ultrasound (U/S) biometry versus that measured by partial coherence interferometry in eyes with clear crystalline lenses and eyes with cataract. Patients and methods A prospective, nonrandomized study included 60 eyes which were divided into two groups. Group I: 30 eyes with clear crystalline lenses. Group II: 30 eyes with cataractous lenses. Each group is further subdivided into three groups: group a with short AEL (<22.00 mm), group b with average AEL (22.00–25.00 mm), and group c with long AEL (>25 mm). Complete ophthalmological examination was performed for every patient. AEL was assessed by applanation A-scan U/S and optical biometry using partial coherence interferometry. Results A total of 60 eyes were included in the study. In group I (clear crystalline lens group), the mean AEL by applantion U/S biometry was 24.23±3.73 mm which is shorter than the mean AEL measured by optical biometry which is 24.48±3.66 mm and the difference is statistically highly significant (P=0.002). In group II (cataractous lens group), the mean AEL by applantion U/S biometry was 24.27±3.57 mm which is shorter than the mean AEL measured by optical biometry which is 24.46±3.43 mm and the difference between the two measurements was statistically nonsignificant (P=0.077). Conclusion Optical biometry provides longer mean measurements than applanation U/S biometry in eyes with cataract or clear lens, which is represented by a negative difference of 0.05 mm in AEL measurements. These results suggest that applanation A-Scan U/S biometry underestimates AEL.

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Background Thyroid eye disease (TED) is the most common autoimmune disease of the orbit. Management includes conservative measures, medical therapy, surgery, and targeted biologic therapy. Aim To compare the efficacy of repeated peribulbar triamcinolone injections with surgical orbital decompression in patients with moderate to severe TED. Patients and methods A prospective nonrandomized, noncontrolled comparative interventional study was conducted that included 30 eyes with moderate to severe inactive TED, which were divided into two groups: group A included 15 eyes that were enrolled for surgical orbital decompression and group B included 15 eyes that underwent repeated peribulbar triamcinolone injections. Patients were subjected to preoperative and postoperative ophthalmological examination, including visual acuity, intraocular pressure measurement, and degree of proptosis. Results Hertel's exophthalmometer measurements showed mean±SD difference between preoperative and postoperative values in group A of 6.20±1.32, whereas group B had 2.53±0.92, revealing high statistically significant differences between preoperative and postoperative results in each group as well as between both groups. Differences in intraocular pressure values between preoperative and postoperative periods in group A were 1.73±1.39 and in group B were 1.13±0.92, showing a highly statistically significant difference. Concerning refraction, the mean difference between preoperative and postoperative periods in sphere, cylinder, and axis in group A showed a highly statistically significant difference in cylinder and axis, whereas only cylinder and not axis in group B. Conclusion Both repeated peribulbar injection of triamcinolone and surgical orbital decompression are effective modalities for management of moderate and severe inactive TED, with surgical orbital decompression having the upper hand in providing better results in reduction of proptosis.

Hallermann-Streiff syndrome (HSS) is a rare genetic disorder that is primarily characterized by distinctive malformations of the skull and facial (craniofacial) region; sparse hair (hypotrichosis); eye abnormalities; dental defects; degenerative skin changes (atrophy), particularly in the scalp and nasal regions; and proportionate short stature. Here we describe a case with HSS.

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