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Meaning of Cystoscopic Examination:Cystoscopy is an essential diagnostic tool in urology that is used to assess the structure and function of the genitourinary system. It provides a direct view of the urethra, bladder, and, in some cases, the ureteral openings. This procedure helps detect structural abnormalities, infections, cancers, and blockages in the urinary tract. There are two types of cystoscopy:Flexible cystoscopy is commonly performed in outpatient settings due to its less invasive...
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In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
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Factorial Analysis is an experimental design that applies Analysis of Variance (ANOVA) statistical procedures to examine a change in a dependent variable due to more than one independent variable, also known as factors. Changes in worker productivity can be reasoned, for example, to be influenced by salary and other conditions, such as skill level. One way to test this hypothesis is by categorizing salary into three levels (low, moderate, and high) and skills sets into two levels (entry level...
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Attitudes01:54

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Attitude is our evaluation of a person, an idea, or an object. We have attitudes for many things ranging from products that we might pick up in the supermarket to people around the world to political policies. Typically, attitudes are favorable or unfavorable: positive or negative (Eagly & Chaiken, 1993). And, they have three components: an affective component (feelings), a behavioral component (the effect of the attitude on behavior), and a cognitive component (belief and knowledge;...
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The genomes of eukaryotes are punctuated by long stretches of sequence which do not code for proteins or RNAs. Although some of these regions do contain crucial regulatory sequences, the vast majority of this DNA serves no known function. Typically, these regions of the genome are the ones in which the fastest change, in evolutionary terms, is observed, because there is typically little to no selection pressure acting on these regions to preserve their sequences.
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Related Experiment Video

Updated: Feb 1, 2026

Smartphone Fundus Photography
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Smartphone Fundus Photography

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Examining the ocular fundus in neurology.

Stefanie J Rodenbeck1,2, Devin D Mackay1,2,3

  • 1Indiana University School of Medicine.

Current Opinion in Neurology
|December 6, 2018
PubMed
Summary

Fundus photography offers practical alternatives to traditional funduscopic exams, aiding in early detection of cognitive decline and cerebrovascular disease risk. These methods enhance accessibility for neurologists.

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Area of Science:

  • Ophthalmology
  • Neurology
  • Medical Imaging

Background:

  • Funduscopic examination is crucial for neurological assessment but technically challenging and often omitted.
  • Traditional direct ophthalmoscopy requires frequent practice.
  • Alternative fundus examination methods are needed for broader clinical application.

Purpose of the Study:

  • To review alternative funduscopic examination techniques.
  • To highlight the potential of fundus photography in neurological practice.
  • To discuss the link between retinal changes and neurological conditions.

Main Methods:

  • Review of current literature on fundus photography techniques.
  • Discussion of nonmydriatic, portable, and smartphone-based fundus photography.
  • Analysis of studies linking retinal microvascular changes to cognitive and cerebrovascular health.

Main Results:

  • Fundus photography offers practical, portable, and accessible alternatives to direct ophthalmoscopy.
  • Decreased retinal microvascular density correlates with accelerated cognitive decline.
  • Optic disc pallor and retinopathy are more prevalent in patients with recent stroke or transient ischemic attack.

Conclusions:

  • Fundus photography improves ease of use, portability, and availability of funduscopic examination.
  • Retinal microvasculature changes detected via photography can noninvasively identify patients at high risk for cognitive impairment and cerebrovascular disease.
  • Further research is needed to integrate retinal microvascular measurements into routine clinical care for neurological conditions.