iris-fixation-via-external-pentagram-suturing

Iris Fixation <em>via</em> External Pentagram Suturing

Extensive anterior synechia of the iris can result in the gradual disappearance of the anterior chamber. It is one of the most common outcomes of both ...

Peking University Third Hospital

Xian Aier Eye Hospital

The aim of this study was to evaluate the refractive regression-related factors before and after laser in situ keratomileusis (LASIK) for myopia and give a reasonable way to prevent it. The consecutive patients who underwent LASIK from January to June 2004 were reviewed retrospectively. Thirteen eyes from 8 patients with myopic regression and 60 eyes from 42 patients with no myopic regression within 12 months of follow-up were enrolled. We compared the pre- and postoperative data which were associated with regression in the two groups. The mean preoperative intraocular pressure (IOP) was significantly higher in the regression group than in the non-regression group (p = 0.03). During the period of 12 months, the two groups differed in corneal bowing. In the regression group, both posterior and anterior corneal surfaces were significantly bowing (all p < 0.05). In contrast, in the non-regression group, both posterior and anterior surfaces were relatively stable (all p > 0.05). The higher preoperative IOP and the progressive postoperative biomechanical bowing in the posterior and anterior surfaces of the cornea are two factors related to myopic regression in this study. Lowering the IOP preoperatively and postoperatively may be an effective way to prevent the myopic regression after LASIK.

Regression-related factors before and after laser in situ keratomileusis.

The aim of the present study was to detect senile nuclear cataract lens density and provide a quantitative measurement of lens density for the long-term clinical observation of cataracts. An Anterior Segment Analysis System was used to detect the lens density of 422 simple senile cataract eyes and normal contralateral eyes. The density values were taken at the optical axis at various depths measured from the anterior capsule. The differences in lens density at various photographic orientations and in various nuclear grading groups were investigated. The density at 90˚ orientation was larger than that at 30 and 150˚ (P<0.05). The density was reduced beyond the 1.0-mm depth point in all the lenses. Prior to the 2.5-mm depth point, there were differences among the five grade groups (P<0.05). Beyond the 3.0-mm depth point, values in all the grade groups were low and not significantly different (P>0.05). In the grade 4 group, the decrease was more evident. The average density values at all the depth points showed a tendency to increase with increasing nuclear grade. Measuring the density of the anterior half of the lens at 90˚ orientation is therefore more reliable compared with that of the posterior half and at other orientations. Results of the present study have shown that the Anterior Segment Analysis System may be used to detect senile nuclear cataract lens density and provide a quantitative measurement of lens density for long-term clinical observation of cataracts.

Determination of the density of human nuclear cataract lenses.

To summarize intra and post operation complications and their treatment of Descemet's Stripping Automated Endothelium Keratoplasty (DSAEK), and provide our experience for its development in China.

[Post operation complications analysis and their treatment of Descemet's stripping automated endothelium keratoplasty].

There are 2 main types of intraocular lens (IOL) currently implanted in patients after cataract surgery. Till now, we do not know exactly what the effect of intraocular lens implantation will be on the quality of sleep after cataract surgery.

Impact of blue-light filtering intraocular lens implantation on the quality of sleep in patients after cataract surgery.

To compare different K readings in pseudophakic patients post-Descemet's stripping automated endothelial keratoplasty (DSAEK) and evaluate corresponding prediction errors in intraocular lens (IOL) power calculations.

Article	Year
Regression-related factors before and after laser in situ keratomileusis. Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde\| PubMed ID: 16785760	2006
Determination of the density of human nuclear cataract lenses. Molecular medicine reports\| PubMed ID: 24026512	2013
[Post operation complications analysis and their treatment of Descemet's stripping automated endothelium keratoplasty]. [Zhonghua yan ke za zhi] Chinese journal of ophthalmology\| PubMed ID: 24931150	2014
Impact of blue-light filtering intraocular lens implantation on the quality of sleep in patients after cataract surgery. Medicine\| PubMed ID: 28002333	2016
Keratometric measurements and IOL calculations in pseudophakic post-DSAEK patients. BMC ophthalmology\| PubMed ID: 30332995	2018

Yansheng Hao

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