Aim: To assess the accuracy and signal quality of axial length measurements by partial coherence laser interferometry (PCI) for optical biometry in eyes with conventional silicone oil (SO) or heavy silicone oil (HSO) as endotamponade.
Methods: We included 26 eyes with SO endotamponade (SO, n=15; HSO, n=11) using a Zeiss IOLMaster for measurement of axial length the day before and at least 6 weeks after SO removal. We analysed the intraindividual deviation between both measurements and signal-to-noise ratio (SNR) as a marker for signal quality. We included 16 contralateral eyes without history of vitreoretinal surgery to act as the control group.
Conclusion: In our analysis, optical biometry using PCI generated results with acceptable accuracy and signal quality for measurement of axial length in SO-filled eyes.
Today I uploaded multible images under the following categories:
.
CRAO 4 days with established recirculation
Emulsified silicon oil
History: 57-year-old male pateint presented to emergency room with one day history of sudden decrease of vision in his right Eye. No past medical history or ocular history.
On examination:
..............................• VA: ..................... • IOP: ..... ... .......... .......................OD: 20/300 ... ...... OD: 16 mmHg....... ......
.......................OS: 20/50........... OS: 17 mmHg ...............
Slit lamp examination of anterior segment of both eyes was within normal. Dilated fundus exam of the left eye was normal but exam of the right eye showed manifestations that shown in the following photos. (press on the title of this post)
.Q1: what are the findings shown in photos and FFA?
Q2: What is your diagnosis and how are you going to manage such a case?
.Try to answer previous questions then go and download your powerpoint presentation of the case -including diagnosis, management as well as differential diagnosis and discussion- from the following link:
.
On examination:
..............................• VA: ..................... • IOP: ..... ... .......... .......................OD: 20/300 ... ...... OD: 16 mmHg....... ......
.......................OS: 20/50........... OS: 17 mmHg ...............
Slit lamp examination of anterior segment of both eyes was within normal. Dilated fundus exam of the left eye was normal but exam of the right eye showed manifestations that shown in the following photos. (press on the title of this post)
.Q1: what are the findings shown in photos and FFA?
Q2: What is your diagnosis and how are you going to manage such a case?
.Try to answer previous questions then go and download your powerpoint presentation of the case -including diagnosis, management as well as differential diagnosis and discussion- from the following link:
.
----------------------------------------------------------------
This case was presented to you by Dr.K Al-Rubaie . (Thanks Dr.K Al-Rubaie)
This is seven Y/O girl brought by her sister who stated that she fail her preschool vision screening. There was positive family history of early blindness in her grandfather and grandmother. Unfortunately, she had no light perception OD with retrolental fibrovascular tissue resembling totally detached retina. Vision was counting finger near face OS
PURPOSE: To describe the principles, capabilities, and applications of confocal microscopy in vivo in ophthalmology.
CONCLUSIONS: In addition to providing qualitative data, confocal microscopy is valuable for quantitative analysis of the cornea and will enable the investigation of pharmacologic and surgical modifications of corneal wound healing, nerve regeneration, and cellular responses. Prospective, quantitative analyses require individual calibration of confocal microscopes for lateral and axial dimensions of images, for image depth, and for light intensity.
CONCLUSIONS: In addition to providing qualitative data, confocal microscopy is valuable for quantitative analysis of the cornea and will enable the investigation of pharmacologic and surgical modifications of corneal wound healing, nerve regeneration, and cellular responses. Prospective, quantitative analyses require individual calibration of confocal microscopes for lateral and axial dimensions of images, for image depth, and for light intensity.
Today I uploaded multible images under the following categories :
Pigment Epithelial detachment :http://cid-0e6b74aa32b14c9a.skydrive.live.com/browse.aspx/Ophthalmology/Retina/CSCR/CSCR%20-%20Case%204%20-%20%20%20Pigment%20Epithelial%20detachment
cilioretinal artery occlusion :http://cid-0e6b74aa32b14c9a.skydrive.live.com/browse.aspx/Ophthalmology/Retina/Vascular%20occlusion/Arterial%20occlusion/Cilioretinal%20artery%20occlusion
Oculocutanous Albinism :http://cid-0e6b74aa32b14c9a.skydrive.live.com/browse.aspx/Ophthalmology/Retina/Oculocutanous%20Albinism%20with%20macular%20hge
Pigment Epithelial detachment :http://cid-0e6b74aa32b14c9a.skydrive.live.com/browse.aspx/Ophthalmology/Retina/CSCR/CSCR%20-%20Case%204%20-%20%20%20Pigment%20Epithelial%20detachment
cilioretinal artery occlusion :http://cid-0e6b74aa32b14c9a.skydrive.live.com/browse.aspx/Ophthalmology/Retina/Vascular%20occlusion/Arterial%20occlusion/Cilioretinal%20artery%20occlusion
Oculocutanous Albinism :http://cid-0e6b74aa32b14c9a.skydrive.live.com/browse.aspx/Ophthalmology/Retina/Oculocutanous%20Albinism%20with%20macular%20hge
Abstract: Our understanding of plus disease as an important sign for severe retinopathy of prematurity (ROP) has gradually been refined over the past 30 years. As a result of the Early Treatment for ROP (ETROP) randomized trial, the presence of plus disease is now the primary indication for laser treatment. Since the Cryotherapy for ROP trial first introduced a standard photograph as the minimum abnormality necessary for diagnosing plus disease, an intermediate level of vascular dilatation and tortuosity (pre-plus disease) has been defined. However, the recognition of plus disease remains problematic, primarily because of its subjective nature. As our understanding of the pathologic basis for plus disease in ROP grows, objective methods of recognizing and measuring retinal vascular abnormalities are also being designed. Semiautomated methods are being developed to quantify the vascular morphologic changes seen in plus disease and show promise for augmenting clinical judgment in the recognition and timely treatment of ROP.
Posts
