基于智能手机应用程序的近视处方:非洲的一项可行性研究
Gang Luo1, Biruk Tekle2, Shrinivas Pundlik1
1Schepens Eye Research Institute of Mass Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA.
Translational vision science & technology
|February 9, 2026
概括
一个智能手机应用程序有效地纠正了因折射误差引起的视力问题,在服务不足的人群中显著改善了视力敏度. 这项技术提供了一个低培训的解决方案,以打击偏远地区的可避免的失明.
科学领域:
- 眼科医生 眼科 眼科
- 视光学测量 视光学测量 视光学测量
- 公共卫生 公共卫生
背景情况:
- 未纠正的折射误差 (URE) 是视力损伤的主要原因,特别是在服务不足的农村地区.
- 智能手机应用程序为折射误差评估和纠正提供了一个潜在的解决方案.
研究的目的:
- 通过智能手机应用程序生成的处方来评估视力校正的好处.
- 评估应用程序在改善未经纠正的折射误差视觉敏度方面的有效性.
主要方法:
- 一个智能手机应用程序被用来通过测量远点距离来估计近视折射误差.
- 试验镜头安装在埃塞俄比亚的100名患者 (10-68岁) 身上,这些患者患有折射误差和轻度白 (<1.5 D).
- 折射和视力敏度测试在没有循环的情况下进行.
主要成果:
- 球体等效折射误差在 -0.5 D 到 -6 D 之间.
- 未经纠正的视力敏度 (VA) 平均为0.57 logMAR.
- 基于应用程序的球体等效校正显著改善了VA,达到0.03 logMAR (平均改善超过5行).
结论:
- 智能手机应用程序衍生的处方有效地解决未经纠正的折射误差并改善视力.
- 该应用程序对显著的纹症的有效性需要进一步评估.
- 这种低培训的方法表明,在像撒哈拉以南非洲这样的资源有限的环境中,有望对抗可避免的失明.
相关概念视频
Prescription, Nonprescription and Orphan Drugs
1.3K
Prescription drugs require a prescription from a medical practitioner and can only be obtained from a pharmacy. They have many applications, including treating pain, anxiety, and hypertension.
The misuse and addiction to prescription drugs is a growing problem that can affect people of all age groups, specifically teenagers. This can happen when prescription medications are used in ways not intended by the prescriber, such as taking someone else's prescription or using medication for...
The misuse and addiction to prescription drugs is a growing problem that can affect people of all age groups, specifically teenagers. This can happen when prescription medications are used in ways not intended by the prescriber, such as taking someone else's prescription or using medication for...
1.3K
Case Studies
13.7K
There are many research methods available to psychologists in their efforts to understand, describe, and explain behavior and the cognitive and biological processes that underlie it.
13.7K
Lewis Acids and Bases
48.5K
In 1923, G. N. Lewis proposed a generalized definition of acid-base behavior in which acids and bases are identified by their ability to accept or to donate a pair of electrons and form a coordinate covalent bond.
A coordinate covalent bond (or dative bond) occurs when one of the atoms in the bond provides both bonding electrons. For example, a coordinate covalent bond occurs when a water molecule combines with a hydrogen ion to form a hydronium ion. A coordinate covalent bond also results when...
A coordinate covalent bond (or dative bond) occurs when one of the atoms in the bond provides both bonding electrons. For example, a coordinate covalent bond occurs when a water molecule combines with a hydrogen ion to form a hydronium ion. A coordinate covalent bond also results when...
48.5K
Weak Base Solutions
25.3K
Some compounds produce hydroxide ions when dissolved by chemically reacting with water molecules. In all cases, these compounds react only partially and so are classified as weak bases. These types of compounds are also abundant in nature and important commodities in various technologies. For example, global production of the weak base ammonia is typically well over 100 metric tons annually, being widely used as an agricultural fertilizer, a raw material for chemical synthesis of other...
25.3K
Base Excision Repair
26.4K
One of the common DNA damages is the chemical alteration of single bases by alkylation, oxidation, or deamination. The altered bases cause mispairing and strand breakage during replication. This type of damage causes minimal change to the DNA double helix structure and can be repaired by the base excision repair (BER) pathways. BER corrects damaged DNA sequences by removing the damaged base and restoring the original base sequence using the complementary strand as a template.
The first step of...
The first step of...
26.4K
Ions as Acids and Bases
26.6K
Salts with Acidic Ions
Salts are ionic compounds composed of cations and anions, either of which may be capable of undergoing an acid or base ionization reaction with water. Aqueous salt solutions, therefore, may be acidic, basic, or neutral, depending on the relative acid-base strengths of the salt’s constituent ions. For example, dissolving the ammonium chloride in water results in its dissociation, as described by the equation:
Salts are ionic compounds composed of cations and anions, either of which may be capable of undergoing an acid or base ionization reaction with water. Aqueous salt solutions, therefore, may be acidic, basic, or neutral, depending on the relative acid-base strengths of the salt’s constituent ions. For example, dissolving the ammonium chloride in water results in its dissociation, as described by the equation:
26.6K


