Munawar Raj 🩺

 Here are some of the major international news headlines today (16 March 2026): 🌍 1. Middle East Conflict Escalates The conflict involving Iran , Israel , and the United States has intensified and entered another week. Military strikes and threats to oil infrastructure have raised fears of a wider regional war.  Reports indicate heavy casualties, with more than 1,400 deaths in Iran and additional casualties in Israel, Gulf states, and among U.S. troops.  ⛽ 2. Global Oil Crisis and Rising Prices Because of tensions around the Strait of Hormuz , global oil markets are unstable. The International Energy Agency (IEA) plans to release over 400 million barrels of oil from emergency reserves to stabilize prices.  Iran warned that oil prices could rise up to $200 per barrel if the conflict continues.  ✈️ 3. Flight Disruptions in the Gulf Airlines have warned about major flight disruptions as some Middle East airspace is restricted due to the conflict.  ⚖️ 4. Arr...

 Back vertex distance (BVD) BVD is the distance between the back surface of a corrective lens and the front of the cornea. It is an important factor in determining the effective power of a lens . The effective power of a lens is the power that the lens has when it is worn at the prescribed distance from the eye. The prescribed distance is typically 12 mm for glasses and 0 mm for contact lenses . BVD can affect the effective power of a lens in two ways: Magnification : When a lens is moved closer to the eye, it magnifies the image. This is because the lens is now closer to the nodal point of the eye . Minification :When a lens is moved further away from the eye, it minifies the image. This is because the lens is now further away from the nodal point of the eye. The following table shows how BVD affects the effective power of a plus and minus lens: It is important to note that BVD is only one factor that affects the effective power of a lens. Other factors include the lens power , t...